Reply of Ecuador

Document Number
17554
Document Type
Date of the Document
Document File
Document

INTERNATIONAL COURT OF JUSTICE

CASE CONCERNING
AERIAL HERBICIDE SPRAYING

ECUADOR
v.

COLOMBIA

REPLY OF ECUADOR

VOLUME I

31 JANUARY 2011 Table of Contents

Page

CHAPTER 1. INTRODUCTION............................................................................1 ▯
Section I. Structure of the Reply..........................................................................8 ▯

CHAPTER 2. COLOMBIA’S MISREPRESENTATIONS REGARDING

THE SPRAY PROGRAMME...............................................................................27 ▯
Section I. Colombia’s Misrepresentations Regarding the Spray Mixture.........36 ▯

A. ▯The Glyphosate-Based Product...............................................................37 ▯

1.▯ Roundup Export and Roundup Ultra................................................38 ▯

2.▯ Roundup SL and GLY-41 ................................................................44 ▯

B. ▯Other Chemicals......................................................................................50▯

1.▯ POEA ............................................................................................▯..50

2.▯ Additional Chemicals.......................................................................53 ▯
3.▯ Cosmo-Flux 411F.............................................................................56 ▯

4.▯ Colombia’s Assertion That “No Other IngredientsŽ Have

Been Used ........................................................................................59
Section II. Colombia’s Misrepresentations Regarding Spraying

Operations..........................................................................................................63

A. ▯The Counter-Memorial’s Claims Regarding Colombia’s
Compliance With Operational Requirements to Prevent Spray
Drift .................................................................................................▯.......70

B. ▯Ecuador’s Receipt of Data From the Government of the United
States Regarding Colombia’s Aerial Spraying Programme....................76 ▯

C. ▯Aircraft Speed and Height of Spray Release...........................................79 ▯

1.▯ Speed............................................................................................▯...79

2.▯ Height...........................................................................................▯...86

3.▯ Reasons for Exceeding the Speed and Height Requirements ..........92 ▯

D. ▯Droplet Size...........................................................................................▯09
E. ▯ Application Rate....................................................................................113▯

F. ▯ Time of Day...........................................................................................1▯5

G. ▯Temperature, Humidity and Wind Conditions......................................120 ▯

i Section III. Colombia’s Prior Misrepresentations to Ecuador and Others ......123 ▯

Section IV. Colombia’s Failure to Stop Spraying in Buffer Zones and
Other Protected Areas......................................................................................128 ▯

A. ▯Colombia’s Spraying in Buffer Zones Established to Protect
Ecuador From Spray Drift.....................................................................128 ▯

1.▯ Colombia Has Violated the 2.7-3.0 Kilometre “Safety
MarginŽ It Previously Claimed Was Sufficient to Protect

Ecuador from Spray Drift...............................................................128 ▯
2.▯ Colombia Has Violated the 10 Kilometre Buffer Zone It

Now Claims to Respect..................................................................129 ▯

B. ▯Colombia’s Aerial Spraying in Close Proximity to Ecuador’s
Indigenous Reserves..............................................................................133 ▯

1.▯ Cofán-Bermejo Ecological Reserve...............................................135 ▯
2.▯ Awá Indigenous and Forest Reserve..............................................137 ▯

C. ▯Colombia’s Spraying in Close Proximity to Ecuador’s Non-

Indigenous Border Communities...........................................................138 ▯
Section V. The Spray Mixture Reaches Ecuador in Quantities Sufficient

to Cause Serious Harm ....................................................................................139 ▯

A. ▯Colombia’s Misrepresentations Regarding the Extent of Spray
Drift .................................................................................................▯.....140

B. ▯Spray Drift Modeling ............................................................................143 ▯

1.▯ Flaws in Colombia’s Modeling......................................................145 ▯
2.▯ Corrected Modeling........................................................................152 ▯

CHAPTER 3. THE EVIDENCE OF HARM IN ECUADOR.............................159 ▯

Section I. The Mutually Corroborating Evidence of Harm in Ecuador...........166 ▯

A. ▯Sucumbíos 2001 ....................................................................................166 ▯

B. ▯Sucumbíos 2002 ....................................................................................191 ▯

1.▯ The Kichwa and Cofán of Sucumbíos............................................206 ▯

C. ▯Esmeraldas 2000....................................................................................214 ▯
D. ▯Esmeraldas 2007....................................................................................225 ▯

1.▯ The Awá of Esmeraldas .................................................................229 ▯

Section II. The Evidentiary Value of Witness Statements...............................235 ▯

ii Section III. The Evidence of Harm Caused in Colombia Corroborates the
Evidence of Harm Caused in Ecuador.............................................................257 ▯

CHAPTER 4. COLOMBIA’S FAILURE TO CONDUCT AN
ENVIRONMENTAL IMPACT ASSESSMENT, AND OTHER

FAILURES TO PREVENT, OR EVEN ASSESS, HARM TO ECUADOR......277 ▯
Section I. Colombia’s Failure to Assess Environmental Impacts Before

the Aerial Spraying Programme Was Commenced.........................................286 ▯

Section II. Colombia’s Failure to Assess Environmental Impacts After
the Aerial Spraying Programme Commenced.................................................304 ▯

A. ▯The Studies Invoked in the Counter-Memorial.....................................304 ▯

B. ▯The Colombian Environment Ministry’s Ongoing Failure to
Secure an EIA........................................................................................314

C. ▯The Failed Efforts of Colombia’s Courts to Secure an EIA..................330 ▯

Section III. The Spray Programme Violates Other Critical Operational
and Safety Requirements.................................................................................33▯

A. ▯Roundup SL.......................................................................................▯...340

B. ▯GLY-41...........................................................................................▯......343
Section IV. Colombia’s Spray Programme Would Not Be Allowed

Elsewhere.................................................................................................▯.......346
A. ▯Europe...........................................................................................▯........346

B. ▯Individual States................................................................................▯...351

CHAPTER 5. VIOLATION OF TERRITORIAL SOVEREIGNTY..................361 ▯

CHAPTER 6. VIOLATION OF INTERNATIONAL ENVIRONMENTAL
LAW AND RESPONSIBILITY FOR TRANSBOUNDARY HARM...............381 ▯

Section I. Introduction ..................................................................................▯..383

Section II. The Applicable Law.......................................................................388 ▯

A. ▯General International Law.....................................................................388▯

B. ▯The 1988 UN Convention on Narcotic Drugs.......................................390 ▯

Section III. Failure to Carry Out a Prior Environmental Impact
Assessment................................................................................................▯......405

A. ▯Duty to Carry Out a Transboundary EIA ..............................................405 ▯

B. ▯Colombia Did Not Carry Out a Transboundary EIA.............................412 ▯
C. ▯An EMP is Not an EIA..........................................................................417▯

iii Section IV. Failure to Act with Due Diligence to Prevent Transboundary
Harm .........................................................................................................▯......421

A. Colombia’s Failure to Prevent Significant Harm..................................421 ▯

B. ▯Due Diligence in the Pulp Mills Case ...................................................427 ▯

C. ▯Application of the Precautionary Principle ...........................................430 ▯
D. No Prior Notification.............................................................................434▯

E. ▯Failure to Comply with the Inadequate EMP........................................436 ▯

F. ▯Buffer Zones.........................................................................................▯441

G. Failure to Cooperate and Monitor .........................................................444 ▯

CHAPTER 7. VIOLATIONS OF HUMAN RIGHTS AND INDIGENOUS
PEOPLES’ RIGHTS............................................................................................455 ▯

Section I. Overview .........................................................................................4▯7

Section II. Colombia’s Violations of Human Rights.......................................461 ▯

A. Aerial Spraying Has Seriously Injured Affected Individuals................461 ▯

B. ▯Aerial Spraying Violates the Fundamental Human Rights of
Affected Individuals..............................................................................477▯

C. ▯Targeting............................................................................................▯...480

Section III. The “TerritorialityŽ of Human Rights Obligations.......................483 ▯
A. The So-called “TerritorialityŽ of Human Rights Obligations ...............485 ▯

B. ▯The Concepts of a Common Legal Space and an International

Public Order of Human Rights at the Regional Level...........................490 ▯
1. ▯ The Inter-American Declaration of Human Rights........................492 ▯

2. ▯ Case Law of the Inter-American Court of Human Rights .............495 ▯

3. ▯ The Legal Consequences Flowing from the Concepts of
Common Legal Space and Public Order of Human Rights ...........497 ▯

Section IV. Breaches of the Rights of Indigenous Peoples .............................501 ▯

A. The Special Status of Indigenous Peoples under International
Law..................................................................................................▯.....502

B. ▯The Evidence of Harm...........................................................................508 ▯

C. ▯Targeting of Indigenous Peoples...........................................................514 ▯

D. Territoriality of Obligations Towards Indigenous Peoples...................516 ▯

E. ▯Consultation and Notification................................................................518 ▯

iv Section V. Relationship Between the Protection of the Environment and
the Protection of Human and Indigenous Rights.............................................527 ▯

CHAPTER 8.REMEDIES...................................................................................535 ▯

Section I. The Purported Impropriety of Ecuador’s Approach to Relief.........539 ▯

Section II. Ecuador Has Not Attempted to Restrict Colombia’s
Sovereignty Over Its Territory.........................................................................545 ▯

SUBMISSIONS...................................................................................................549 ▯

LIST OF FIGURES .............................................................................................555 ▯
LIST OF ANNEXES ...........................................................................................557 ▯

v CHAPTER 1.

INTRODUCTION1.1 The Applicant instituted these proceedings before the International Court

of Justice (“the CourtŽ) on 31 March 2008. In accordance with an Order of the

Court, the Applicant filed its Memorial on 28 April 2009, and the Respondent

filed its Counter-Memorial on 29 March 2010. By Order dated 25 June 2010, the

Court authorized the submission of a Reply by the Applicant and a Rejoinder by

the Respondent, and fixed 31 January 2011 as the time limit for the filing of the

Reply. This Reply is submitted in accordance with that Order, together with

accompanying Annexes.

1.2 This Reply supplements the submissions and arguments on law and

evidence put forward in the Memorial, all of which are maintained in full. As

provided by Article 49(3) of the Rules of the Court, Ecuador’s Reply addresses

the issues that continue to divide the Parties.

1.3 In its Counter-Memorial, Colombia has asked the Court to “adjudge and

declare that the claims of Ecuador, as set out in the Memorial of 28 April 2009,

are rejectedŽ . In support of that submission, Colombia has given a selective and

misleading presentation of the facts and the law. As described in more detail in

this Reply, the facts are materially different than those on which Colombia

purports to rely, and the Counter-Memorial is especially noteworthy for its failure

to put forward evidence that must be within Colombia’s possession but that it has

1Counter-Memorial of Colombia, Vol. I, Submissions (29 Mar. 2010) (hereinafter “CCMŽ).

3chosen not to tender. Ecuador notes the economy with which Colombia treats

facts that are within its knowledge, in particular the quality and composition of

the herbicidal spray and the manner of its delivery. Two points stand out and

bear careful focus by the Court: (1) the herbicidal mixture that is aerially sprayed

along the border with Ecuador is significantly more toxic than Colombia admits;

and (2) the conduct of the spraying has resulted in tens of thousands of occasions

on which Colombia has acted in a reckless manner in blatant disregard of its own

legal and administrative requirements for preventing spray drift into Ecuador. In

particular, Colombia has allowed the spraying to take place using inappropriate

aircraft that fly at excessive speeds and heights, and that make use of application

rates at times and under meteorological conditions that allow a much higher

occurrence of spray drift across the border. Ecuador invites the Court to draw all

appropriate inferences from Colombia’s failure to invoke certain evidence.

1.4 As regards the law, it is plain that certain matters are not disputed by the

Parties. In particular, there is no dispute between the Parties that when Colombia

began spraying along the border with Ecuador in January 2000 it had not carried

out any sort of prior environmental impact assessment, at the local or national

levels or in respect of transboundary impacts. It is also clear that Colombia had

not carried out any kind of assessment on the effects of the spraying on

indigenous peoples, as required by its own domestic law and ILO Convention No.

169. Ten years into the spraying, it has still not carried out any sort of

4environmental impact assessment, and the only actions it has taken are in the

form of an “Environmental Management PlanŽ, which is intended to manage the

environmental effects, not predict them. Moreover, the evidence before the Court

readily establishes that in carrying out its aerial spraying operations close to the

border, Colombia has not followed the guidelines for controlling spray drift as set

forth in its “Environmental Management PlanŽ, and that it has routinely allowed

spraying to occur in a manner that disregards the legally binding instructions

contained on the applicable product labels. This has resulted in an increased risk

of harm to the people and natural environment of Ecuador, and also actual harm

as set forth in the evidence.

1.5 The Parties are also not in dispute as to the rules of international law that

bind the Parties, although they disagree as to their application to the facts. They

agree that distinct legal obligations exist in relation to: the obligation to respect

Ecuador’s territorial sovereignty; the protection of the environment; respect for

fundamental human rights; and the protection of indigenous peoples on both sides

of the border. Each of these obligations exists independently and gives rise to its

own cause of action, though Colombia adopts a curiously minimalist approach to

the scope of those obligations.

51.6 These are important points of difference that separate Ecuador and

Colombia, but there is also much on which the Parties agree. The Parties agree,

for example, on the following matters:

(1) that the spray mixture is toxic and causes harm to people,

animals and plants, although they disagree as to the extent of
2
the harm ;

(2) that the composition of the spray mixture utilized by Colombia
3
has changed over time ;

(3) that Colombia has an obligation of due diligence to prevent or
4
mitigate transboundary harm ;

(4) that Colombia did not carry out any environmental impact

5
assessment before authorizing the aerial spraying ;

(5) that drift is inherent and unavoidable in aerial spraying ; 6

(6) that Colombia’s conclusions about the extent of drift are

premised upon the assumption that Colombia follows strict

7
operational parameters .

2
See, e.g., Memorial of Ecuador, Vol. I, Chap. 5, paras. 5.4-5.72 (28 Apr. 2009) (hereinafter
“EMŽ); CCM, Chap. 4, para. 4.43; Toxicological Opinion Nº 0685, regarding the toxicological
classification of the mix Glyphosate + POEA + Cosmo-Flux (1%), Colombian Health Ministry, 8

Oct. 2001. CCM, Vol. II, Annex 44; CCM, Chap. 4, para. 4.52.
3 See, e.g., EM, Chap. 5, paras. 5.33-5.34; United States Department of State, Bureau for

International Narcotics and Law Enforcement Affairs, Report on Issues Related to the Aerial
Eradication of Illicit Coca in Colombia: Updated Report on Chemicals Used in the Aerial
Eradication Program (Dec. 2003). EM, Vol. III, Annex 148; CCM, Chap. 4, para. 4.50.
4
See, e.g., EM, Chap. 8, paras. 8.10-8.37; CCM, Chaps. 1 and 8, paras. 1.40, 8.23, 8.50-8.52,
8.59.
5
See, e.g., EM, Chaps. 3, 5 and 8, paras. 3.7, 3.28-3.42, 5.25-5.26, 5.71-5.72, 8.41-8.42; CCM,
Chap. 6, paras. 6.23-6.24, 6.26.
6
See, e.g., EM, Chap. 5, paras. 5.74-5.83, 5.84-5.90; CCM, Chaps. 4 and 7, paras. 4.67-4.68,
7.17-7.29, 7.170.

6 (7) that Ecuador’s border region is poor and isolated, with limited

8
sanitation and health and other public services ;

(8) that Ecuador’s border region is rich in biodiversity and natural

9
resources ;

(9) that vulnerable areas, including human settlements, indigenous

and environmental reserves, and bodies of water require
10
heightened precautionary measures ;

11
(10) that a buffer zone is required ; and

(11) that Colombia has no right to overflight in Ecuador and that

12
overflight is a breach Ecuador’s territorial sovereignty .

They concur also about the factors that are likely to enhance the risk of harmful

spray drift, including excessive flight speed, dispersion of the herbicides at too

great an altitude, excessive spray application rate, and spraying at night time and

7
See, e.g., EM, Chaps. 3 and 5, paras. 3.15, 5.91-5.99; CCM, Chaps. 4, 7 and 8, paras. 4.23-4.29,
4.57-4.70, 4.80, 7.17, 7.31-7.32, 7.171-7.173, 8.60.
8
See, e.g., EM, Chap. 2, paras. 2.17-2.18, 2.22-2.28; CCM, Chaps. 2 and 7, paras. 2.4, 2.13, 2.15-
2.16, 2.20-2.23, 2.29-2.30, 2.32-2.35, 7.37, 7.183-7.184.
9
See, e.g., EM, Chap. 2, paras. 2.11-2.16; CCM, Chap. 3, paras. 3.20-3.23, 3.25.
10
See, e.g., EM, Chaps. 2, 6, 8 and 9, paras. 2.11, 2.16, 2.19, 2.22, 5.48, 5.80, 6.49, 8.17, 8.29-
8.30, 9.70-9.74; CCM, Chaps. 4, 7 and 10, paras. 4.59, 7.5, 7.17, 7.32, 7.82, 7.89, 7.176, 7.187,
10.11.
11
See, e.g., EM, Chap. 3, paras. 3.14, 3.59, 3.74-3.80; CCM, Chaps. 4, 5, 7, 8 and 10, paras. 4.59,
4.63, 5.62-5.63, 5.67, 5.109, 7.5, 7.17, 7.32, 7.82, 7.89, 7.176, 7.187, 8.60(4), 10.9.
12
See, e.g., EM, Chap. 7, paras. 7.16-7.17; CCM, Chaps. 1, 5 and 8, paras. 1.41(4), 5.101, 8.42.

7 13
in adverse meteorological circumstances . They also agree on the scientific

14
model for predicting the extent of spray drift .

1.7 These significant points of agreement make the Court’s task that much

easier. Although the differences that remain are important, they are narrow and

relate to matters of degree, not of principle. In Ecuador’s view, the Parties’

differences are easily resolved by reference to the evidence presented in the

Memorial and in this Reply, as will be shown in the Chapters that follow.

Section I. Structure of the Reply

1.8 This Reply consists of eight Chapters, followed by Ecuador’s

Submissions, together with Annexes. Chapter 2 begins Ecuador’s substantive

response to the Counter-Memorial by addressing certain issues of fact. It

establishes that Colombia’s description of the aerial spray programme is partial

and incomplete and provides an inaccurate account of the activities that Colombia

has authorized. The Counter-Memorial fails to provide a complete and accurate

description of the spray ingredients, their chemical composition and their toxicity.

It also fails to provide an accurate account of the manner in which the spraying

has been carried out, and mis-states Colombia’s compliance with its own

mandatory operational parameters that were imposed to prevent spray drift.

13
See, e.g., EM, Chap. 5, paras. 5.84-5.99; CCM, Chap. 4, para. 4.68.
14See infra Chap. 2, paras. 2.189-2.190.

8Moreover, and contrary to the description set forth in the Counter-Memorial,

Colombia sprays in areas that it has itself stated should be off-limits to spraying

in order to protect human settlements, indigenous peoples and ecologically

sensitive areas. Colombia’s failure to provide an accurate account of its spraying

activities confirms its inability to take all necessary measures to prevent risk and

harm.

1.9 The first part of Chapter 2 responds to Colombia’s claims regarding the

chemical composition and properties of the spray mixture. Whilst the parties

agree that the herbicidal mixtures used by Colombia are incapable of

discriminating between plants and destroy and seriously harm plant-life even in

very small quantities 1, they disagree as to the impacts on human health and

animals. The Parties are also in manifest disagreement as to the question of

whether Colombia has fully disclosed the chemical composition of the herbicide

spray: the evidence shows that it has not, and this is a matter of fact that may

easily be established by the Court. The Counter-Memorial asserts that Colombia

has sprayed only two herbicidal formulations: Roundup SL and, after 2004, GLY-

41 1. In fact, the evidence before the Court, including Colombia’s diplomatic

correspondence, demonstrates that Colombia has used two additional herbicidal

formulations that are highly toxic, not least for their propensity to cause serious

15EM, Chaps. 5 and 8, paras. 5.7-5.11, 8.28; CCM, Chap. 7, para. 7.87.

16CCM, Chap. 4, para. 4.50.

9 17
and irreversible eye damage . Moreover, the two formulations that Colombia

admits to using are also hazardous: indeed, Colombia has had to discontinue the

use of Roundup SL because of the dangers it poses to human eyes, and GLY-41’s

label expressly warns against allowing it to come into contact with human skin or

18
to be inhaled or ingested . Colombia does not disclose … in the Counter-

Memorial or voluminous annexes … the chemical formula or complete list of

ingredients for any of the various herbicidal mixtures it has sprayed along the

19
border with Ecuador . In short, the Counter-Memorial materially misrepresents

the herbicidal mixtures in ways that seriously understate their ability to cause

damage in Ecuador.

1.10 The misrepresentations do not end there. As shown in the second part of

Chapter 2, they also, and especially, concern the manner in which the spray

programme is conducted. The Counter-Memorial claims that Colombia complies

strictly with all of the operational requirements that the Parties agree are

necessary to prevent spray drift into Ecuador. Colombia seeks to assure the Court

that Ecuador is protected against spray drift because the spray planes are

equipped with sophisticated technology that automatically and instantaneously

record … for each and every flight … all the relevant data, including the flight

17See supra Chap. 2, paras. 2.18-2.30.
18
See supra Chap. 2, paras. 2.35, 2.38-2.40.
19
See supra Chap. 2, paras. 2.48-2.50.

10speed and altitude at the time of spray dispersion, the application rate and the

20
time of day . According to Colombia, these data have been subjected to regular

reviews and audits, on at least a quarterly basis, and they confirm Colombia’s

strict compliance with every operational requirement designed to prevent spray

21
drift . Yet it is notable that Colombia has not provided the Court with any of this

data or the audit reports on which its conclusions are said to rely. Nor does

Colombia disclose any information about the precise locations or dates of its

spraying activities, or the climatic conditions that pertained on each spraying

occasion. In effect, Colombia asks the Court to take on faith its use of harmless

substances and its strict compliance with all operational requirements designed to

prevent them from drifting across the border into Ecuador.

1.11 Ecuador notes that the Court has developed a well-established practise in

dealing with the evidence before it, rather than on bald assertions of fact. The

Reply sets forth compelling new evidence that was not available to Ecuador when

it submitted its Memorial. Ecuador has obtained and relies upon new evidence

obtained through a Freedom of Information Act Request directed to the United

States Department of State (which has funded and supported some of Colombia’s

aerial spraying operations): this includes detailed data that was generated

automatically by Colombia’s spray aircraft and recorded by the relevant data

20CCM, Chaps. 4 and 7, paras. 4.64 and 7.17.

21Ibid., Chap. 4, paras. 4.28-4.29.

11collection systems. This data provides incontrovertible evidence that undermines

Colombia’s factual assertions. Ecuador has put before the Court the totality of

the detailed information that it has obtained on the records of more than 100,000

spray flights between 2000 and 2008. Each of these spraying activities occurred

within 10 kilometres of Colombia’s border with Ecuador, and it shows the actual

locations, times, flight speeds and altitudes at the time of dispersion, and the

spray application rates (in litres per hectare). This data is contained on a CD-

ROM that accompanies the Reply, and it destroys Colombia’s contention that its

aerial spraying has been conducted in a manner designed to minimise risk and

harm by avoiding the drift of the herbicidal mixtures onto the territory of

Ecuador. The evidence before the Court proves that tens of thousands of spray

flights violated the operational requirements imposed by Colombia and that the

Parties agree are necessary to prevent spray drift. Specifically, Colombia’s spray

planes, within 10 kilometres of the border:

▯ on 75,841 occasions sprayed at a speed greater than the 165 miles per

hour speed limit imposed by Colombia (as was claimed in the
22
Counter-Memorial to have been strictly observed );

▯ on 16,143 occasions sprayed while flying higher than the 50 metre

height limit (as claimed in the Counter-Memorial to have been strictly

observed 23);

22CCM, Chap. 4, para. 4.62.

23Ibid., Chap. 4, para. 4.62.

12 ▯ on 27,139 occasions sprayed in excess of the application rate of 23.65

litres per hectare (as claimed in the Counter-Memorial to have been

strictly observed ); and

▯ on 24,540 occasions sprayed in darkness and at night (a practise that

the Counter-Memorial asserted was prohibited, because night time
25
spraying is more conducive to long-distance spray drift ).

1.12 Colombia had access to all this data … and more … when it filed its

Counter-Memorial, yet chose not to make it available to the Court. Newly

available to Ecuador, having been obtained from the U.S. Department of State by

means of a Freedom of Information Act request, the data make clear that

Colombia’s Counter-Memorial was inaccurate, and misleadingly so. It proves,

inter alia, that:

(i) Colombia has used airplanes that are ill-suited to controlling spray

drift to carry out its spraying operations;

(ii) the pilots … employees of a private U.S. company contracted to

carry out the spraying operations … are poorly trained and

undisciplined, and pay little heed to the operating requirements,

which are haphazardly enforced in any event; and

(iii) spraying has been routinely carried out within the spray-free buffer

zones (originally set at three kilometres and then increased to 10

kilometres) that Colombia unilaterally established in order to

24Ibid., Chap. 4, para. 4.62.

25R. John Hansman, Ph.D. & Carlos F. Mena, Ph.D., Analysis of Aerial Eradication Spray Events
in the Vicinity of the Border Between Colombia and Ecuador from 2000 to 2008, pp. 1, 23 (Jan.
2011). ER, Vol. II, Annex 1.

13 minimize harm to human settlements and ecologically-sensitive

areas, including those in Ecuador.

In short, despite its unsupported assertions to the contrary, the evidence before the

Court shows that Colombia has carried out its aerial spraying programme along

the border in a manner that virtually assures the deposit of highly toxic herbicidal

mixtures deep inside Ecuador.

1.13 Chapter 3 responds to Colombia’s efforts to cast doubt upon the

probative accuracy and reliability of the evidence presented by Colombia in the

Memorial, with regard to the risks and harms to people (including indigenous

peoples), plants and animals that have been inflicted in Ecuador. Contrary to the

Counter-Memorial’s claim that the Memorial’s evidence of harm is unreliable

26
and uncorroborated , Ecuador shows the opposite. In fact, the newly acquired

spray flight data from the U.S. State Department (which Ecuador did not receive

until after the Memorial was submitted) confirms the near-perfect correlation

between the times and locations of spraying near the Ecuadorian border and the

complaints of spraying and harm, including destruction and injury to vital crops

for subsistence farmers. Such reports, which are memorialized in witness

testimony, are corroborated by contemporaneous medical records, press reports

and independent field missions. The UN Special Rapporteur on the Right to

26CCM, Chaps. 1, 5, 7 and 9, paras.1.32, 5.43, 7.30, 7.82, 7.107, 7.121, 7.128, 7.134, 7.141,
7.143, 7.148, 7.151, 7.156, 7.180-7.182, 7.186, 9.123, 9.131-9.132.

14Health has described these reports as “credibleŽ and “reliableŽ, thereby

27
confirming their probative authority . Moreover, the harms to human health

reported by the witnesses … including injuries to the eyes, skin, respiratory and

digestive systems … correspond to the known harms caused by the two principal

elements in all of Colombia’s herbicidal spray mixtures (glyphosate and POEA),

as widely reported in authoritative scientific literature and as specified in explicit

warning labels prepared for these products by the manufacturers. Further, the

witnesses’ descriptions of a pattern of strikingly similar and simultaneous harm to

multiple plant species is consistent with exposure to the use of indiscriminate

herbicides rather than to disease or insect infestation, which would typically only

attack a particular plant species. Colombia has failed to provide any evidence

whatsoever for any other plausible cause for the damage to plants and the

environment and the infirmities reported by the residents of Ecuador’s border

regions … including indigenous peoples … in close proximity to repeated aerial

sprayings.

1.14 In Chapter 4, Ecuador shows that Colombia has disregarded its

international legal obligations with respect to transboundary environmental

impact assessment (“EIAŽ) and due diligence. In this regard, Ecuador has taken

27
Report of the Special Rapporteur on the Right of Everyone to the Enjoyment of the Highest
Attainable Standard of Physical and Mental Health, Paul Hunt: Preliminary Note on Mission to
Ecuador and Colombia, Addendum, A/HRC/7/11/Add.3, para. 17 (4 Mar. 2007). EM, Vol. II,
Annex 31.

15careful account of the approach taken by the Court in its recent judgment in the

Pulp Mills case, which confirms the obligation under general international law to

28
carry out such an assessment . Against this background, it is no surprise that the

Parties agree that Colombia was required by international law to carry out a

transboundary EIA, before it began its aerial spraying near the border with

29
Ecuador . The Court has two significant questions to address: the first is a legal

question, namely what are the requirements for such an EIA; the second is a

simple question of fact, namely were those requirements met? The arguments

and evidence before the Court make it abundantly clear that the minimum

requirements under international law for an EIA were not met by Colombia

before it authorised aerial spraying, and they have not been met subsequently.

Similarly, Colombia has never assessed the effects of the spraying operations on

indigenous peoples, as required by ILO Convention No. 169.

1.15 Indeed, Colombia concedes that no EIA (transboundary or otherwise) was

carried out either before or after spraying began along the border with Ecuador.

Colombia justifies that omission on the grounds that its domestic law exempts the

spraying programme from being subject to any EIA requirement. The argument

lacks merit, if only because on this approach any State would be able to

circumvent its international obligations by invoking inadequate domestic laws.

28Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, p. 60, para. 204.

29See infra Chap. 4, para. 4.1 (citing CCM, para. 1.40).

16Colombia is not entitled to be able to claim to circumvent its international legal

obligations by invoking its domestic laws, particularly when it has consciously

structured and applied those laws in order to avoid having to conduct an EIA that

would expose the spray programme’s danger to human health and the

environment. This is all the more so in respect of the clear and express

obligations of assessment that apply in relation to indigenous peoples. The

manifest inadequacy of Colombia’s argument here is made clear by the fact that

the urgent need for an EIA was recognized by Colombia’s own Ministry of

Environment, the government body charged with overseeing and enforcing

environmental regulations. For several years this Ministry repeatedly ordered the

agency responsible for the aerial spraying to carry out, and present for approval,

required environmental impact studies. Each of these orders was ignored. The

Ministry of Environment then imposed sanctions, but these too failed to secure

compliance with the obligation to carry out the required impact studies. Similar

orders and appeals for impact assessments by Colombia’s courts, Comptroller

General and Office of the Ombudsman were all disregarded. In short,

Colombia’s spraying of over 1.2 million litres of herbicide within 10 kilometres

of Ecuador has been conducted without ever having been subjected to a prior

impact assessment to determine its environmental and human health

consequences, including the effects on indigenous peoples.

171.16 In Chapters 5 to 8, Ecuador addresses Colombia’s legal arguments,

which are no more persuasive than its manifestly inadequate treatment of the

facts. There is no dispute between the Parties as to the Court’s jurisdiction to

apply any of the international legal obligations incumbent upon Colombia that

have been invoked by Ecuador, including under the Pact of Bogota and the 1988

UN Convention against Illicit Traffic in Narcotic Drugs and Psychotropic

Substances (“1988 Narcotics ConventionŽ). As regards the 1988 Narcotics

Convention, Ecuador notes that Colombia has not challenged jurisdiction as such,

but rather raised issues as to the meaning and legal effects of that instrument, an

issue that goes to the merits and not jurisdiction. Colombia has entirely

misunderstood the 1988 Narcotics Convention, and its proper meaning and effect

are addressed in Chapter 6 30.

1.17 Chapter 5 responds to Colombia’s case on territorial sovereignty. It

makes clear that the Parties are in agreement that respect for a State’s territorial

sovereignty is a fundamental obligation under both general international law and

treaties applicable as between the Parties, and that breach of that obligation gives

rise to a distinct and separately actionable claim. The Chapter shows that

Colombia has violated Ecuador’s territorial sovereignty by causing toxic amounts

of herbicide to be deposited in Ecuador in a manner that fails to respect Ecuador’s

30See infra Chap. 6, paras. 6.9-6.28.

18sovereignty under international law, including by imposing Colombia’s standards

on that territory.

1.18 Chapter 6 refutes Colombia’s arguments on international environmental

law. Applying the facts to the law, the Chapter establishes that Colombia has

failed to meet its minimum obligations with respect to the obligation to prevent

transboundary risks and harm; has failed to carry out any transboundary

environmental impact assessment prior to spraying near Ecuador; has failed to

cooperate with Ecuador; and has not applied a precautionary approach. In

particular, Ecuador shows that the existence of a real and demonstrable risk that

the herbicidal mixtures would drift into Ecuador and cause harm was known to

Colombia, and that international law required Colombia to carry out a

transboundary EIA prior to engaging in that risky and hazardous activity.

However, none was done, either before or after the commencement of spraying,

31
as Colombia recognizes ; it may have required an Environmental Management

Plan, but that plan did not amount to an environmental assessment, and was in

any event applied in a manifestly inadequate manner. Moreover, Colombia has

breached its duty of exercising due diligence in authorizing and conducting the

spraying programme by, among other things, allowing the use of inappropriate

chemicals; failing to ensure that its aircraft carry out spraying operations in ways

that minimize drift, including at appropriate height, speed, application rate and

31CCM, Chap. 6, paras. 6.23-6.24, 6.26.

19time of day; by failing to give warning before spraying; and by spraying within

10 kilometres of the border with Ecuador. Further, Colombia has breached its

duty to cooperate with Ecuador in good faith, as required by general international

law, by the 1988 Narcotics Convention, by ILO Convention No. 169 and by the

1992 UN Convention on Biological Diversity. Colombia has manifestly failed to

consult with Ecuador before spraying near the border, failed to notify Ecuador of

the chemical compositions of the various spray mixtures, and failed to undertake

joint monitoring of the impact of the spraying programme.

1.19 In Chapter 7, Ecuador responds to the arguments Colombia has made in

relation to its breaches of human rights law and the particular obligations that

international law imposed upon it to take specified measures to protect

indigenous peoples. In so doing, it refutes Colombia’s contention that its actions

32
have not affected the human rights of those living in Ecuador ; that Colombia’s

human rights obligations are geographically restricted to the territory of

Colombia, notwithstanding the Parties’ shared legal space 33; and that the

indigenous people of Ecuador have not suffered special, separately cognizable

34
harm under international law .

32
CCM, Chap. 9, paras. 9.75-9.79, 9.93-9.94, 9.101-9.109, 9.118, 9.123-9.125, 9.130-9.132,
9.140-9.143, 9.152.
33
Ibid., Chap. 9, paras. 9.10-9.50, 9.64, 9.72, 9.85, 9.114.
34
Ibid., Chap. 9, paras. 9.153-9.169.

201.20 In Chapter 8, Ecuador refutes Colombia’s arguments regarding the

remedies to which Ecuador is entitled for the breaches of international law

described in the preceding Chapters. Ecuador shows that its approach to

remedies is based upon and fully consistent with the practise previously adopted

by the Court, by which the quantification of monetary damages is deferred to a

subsequent phase of proceedings. In regard to the cessation of Colombia’s

unlawful acts, Ecuador seeks, inter alia, an order from the Court that Colombia

permanently cease and desist from carrying out aerial spraying operations within

10 kilometres of the Ecuador/Colombia border … a spray-free buffer zone that

Colombia itself claims to have implemented since 2007 (on a voluntary and non-

permanent basis) to prevent harms to Ecuador.

1.21 The Reply concludes with Ecuador’s Submissions. The Submissions set

forth in the Memorial are maintained in full, subject to only one difference: in the

Reply Ecuador has clarified its request by seeking a specific order from the Court

that Colombia shall refrain from aerial spraying within 10 kilometres of the

border between the two countries. Ecuador considers that this is the minimum

spray-free buffer zone necessary to protect Ecuador from further harms, and notes

that Colombia itself has accepted, albeit on a temporary and non-binding basis, a

buffer zone extending 10 kilometres from the border with Ecuador in which it

says it has not conducted aerial spraying operations since 2007. Ecuador notes

that Colombia’s declaration of a 10 kilometre spray-free zone was reconfirmed in

21 35
a public statement by the Ministry of Foreign Relations on 11 November 2010 .

Ecuador considers this, and previous Colombian declarations of a similar nature,

to constitute a recognition of the reasonableness of a 10 kilometre buffer zone

required for prevention of damage to Ecuador. What it seeks from the Court is an

order making permanent and binding what Colombia regards as merely temporary

and voluntary.

1.22 Ecuador’s Reply consists of 5 volumes. Volume I is the main text.

Volumes II-V contain supporting Annexes. In particular, Volume II contains

expert reports, which are presented in the following order:

▯ Annex 1 is a report by R. John Hansman, Ph.D. (Professor of

Aeronautics and Astronautics at the Massachusetts Institute of
Technology and an expert in aviation) and Dr. Carlos F. Mena, Ph.D.

(Professor of Geography and Ecology in the School of Life and

Environmental Sciences at the Universidad San Francisco de Quito

and an expert in geographical information systems). The Hansman &

Mena Report evaluates the flight data that were recorded by the spray

planes’ on-board instruments and obtained by Ecuador from the U.S.

Department of State. It shows that, on tens of thousands of occasions,

the spray programme violated the operational requirements most

relevant to the prevention of spray drift, including, inter alia, aircraft

35Republic of Colombia, Ministry of Foreign Affairs, Press Release (11 Nov. 2010). ER, Vol. V,
Annex 156.

22 speed, altitude of herbicide dispersion, application rate, and time of

day of spraying.

▯ Annex 2 is a report by Dr. Durham K. Giles, Ph.D. (Professor of

Biological and Agricultural Engineering at the University of

California, Davis and an expert in pesticide drift modeling). The Giles

Report applies the internationally accepted model for predicting drift

of aerially applied pesticides (predicting grams of herbicide deposited

per hectare downwind), using data that reflect actual flight conditions
as recorded in the Colombian flight data obtained from the U.S.

Department of State. Dr. Giles shows that significantly more

herbicide is deposited at distances as far as 10 kilometres from the site

of application than was appreciated by the modeling commissioned by

Colombia, which relied upon inaccurate assumptions regarding

compliance with the spray programme’s operational parameters.

▯ Annex 3 is a report by Dr. Stephen C. Weller, Ph.D. (Professor of

Weed Science at Purdue University in West Lafayette, Indiana and an

expert in the dose-response of plants to glyphosate). The Weller

Report compares the downwind deposition predictions generated by

Dr. Giles’s drift modeling with known toxicity thresholds for plants.

Dr. Weller shows that the amount of herbicide deposited at distances
at least 10 kilometres from the site of application is enough to cause

significant harm to plants, including food crops.

▯ Annex 4 is a report by Dr. Henrik Balslev, Ph.D. (Professor of

Biological Sciences at Aarhus University in Denmark and an expert in
the ecology of Ecuador). Dr. Balslev’s report describes the

extraordinary biodiversity of the area around Ecuador’s border with

Colombia and explains the vulnerability of its multiple ecosystems to

23 perturbations, including those caused by exposure to chemical

herbicides.

▯ Annex 5 is a report co-authored by Dr. Norman E. Whitten, Ph.D.

(Professor Emeritus of Anthropology and Latin American Studies at

the University of Illinois at Urbana-Champaign); Dr. William T.

Vickers, Ph.D. (Professor Emeritus of Anthropology at Florida

International University); and Dr. Michael Cepek (Assistant Professor

of Anthropology at the University of Texas at San Antonio). The
three co-authors are experts in the anthropology of northern Ecuador,

including the indigenous peoples, Afro-Ecuadorians and non-

indigenous farmers that inhabit the region. The Whitten et al. Report

explains that these people, many of whom live on the margin of

subsistence, are acutely vulnerable to damage to their health and to the

plant and animal life upon which they depend.

▯ Annex 6 is a report by Charles A. Menzie, Ph.D. and Pieter N. Booth,

M.S. The co-authors previously submitted a report that was annexed

to the Memorial. The present report responds to criticisms made in

the report of Stuart Dobson, Ph.D., which was appended to the

Counter-Memorial. The Menzie & Booth Report shows that the

conclusions in their original report have been validated by the
subsequent flight data evaluation, drift modeling and dose-response

analysis that is presented in Annexes 1-3. They further show that the

appropriate risk management strategy is to implement a buffer zone of

sufficient breadth to protect the vulnerable ecologies and human

communities in Ecuador from harm caused by spray drift, and that the

10-kilometre buffer zone sought by Ecuador is consistent with

international standards.

24 ▯ Annex 7 is a report by Reinhard Joas, Ph.D, who is an expert on

chemicals regulation and served as the technical advisor to the

European Commission in developing the Directive that prohibits in the

European Union aerial spraying as a means for dispersing pesticides.
The Joas Report describes the reasoning behind the EU’s decision to

ban aerial spraying, and shows that Colombia’s programme would not

be permitted in the EU.

▯ Annex 8 is a report by Ms. Claudia Rojas Quiñonez, Esq., a

Colombian lawyer and Lecturer at the Universidad Externado de
Colombia, where she specializes in Colombian environmental law.

The Rojas Report shows that Colombia, in carrying out its aerial

spraying programme, has breached its municipal law by, among other

things, failing to carry out an environmental impact assessment,

failing to comply with the terms of its Environmental Management

Plan, and failing to comply with applicable laws regulating the use of

pesticides.

Volumes III-V contain the remaining Annexes, which are presented in the

following order: (i) Regulations and Technical Reports; (ii) Verification and

Observation Reports; (iii) United States Government Documents; (iv) News

Articles; (v) Multilateral Organisation Documents; (vi) Other Documents; (vii)

Colombian Government Documents.

25 CHAPTER 2.

COLOMBIA’S MISREPRESENTATIONS REGARDING THE SPRAY
PROGRAMME2.1 In this Chapter, Ecuador shows that the Counter-Memorial’s portrayal of

the spray programme is a complete misrepresentation of the actual facts.

Colombia entirely distorts reality in order to hide the true danger the spray

programme poses to the people, plants, animals and ecology of Ecuador.

2.2 According to the Counter-Memorial, the spray programme consists of

spraying limited quantities of an essentially non-toxic mixture of chemicals in

strict conformance with a world-class environmental management plan in a

manner that assures no drift across the border into Ecuador. Nothing could be

further from the truth.

2.3 The grand deception begins with false assertions that the chemical

composition of the various spray mixtures that Colombia has used are both

publicly known and non-toxic. Contrary to the statements in the Counter-

Memorial, Colombia has consistently refused to disclose the formula of the

mixtures, identify all of their contents, or specify the proportions of each element;

it has repeatedly denied Ecuador’s explicit requests for this information; and,

quite remarkably, Colombia has even withheld it from the Court, which can put a

magnifying lens to the entire 513-page Counter-Memorial, and the 1,117 pages of

annexes, without finding the complete formula for the spray mixtures that are at

the centre of this dispute.

292.4 Even without knowledge of the precise formula of the mixture, or the

identification of all of its elements, the toxicity of the secret brew is well

established. It is, indeed, designed and intended to kill every plant that it touches;

and its toxicity to humans and animals is undeniable. True, its effects on people

might not necessarily be fatal, but the evidence that it harms the skin, the eyes,

the respiratory system and the digestive system is not only overwhelming, but

also admitted, expressly, by the manufacturers of the mixture’s main components,

by objective scientists, and by governments of third States.

2.5 Colombia’s pantomime continues with what turns out to be the biggest

falsehood of all: that Colombia’s aerial spraying programme is carried out in a

manner that fully complies with all of the operational parameters touted in the

Counter-Memorial, and in Colombia’s so-called “Environmental Management

PlanŽ, including supposedly stringent restrictions on aircraft speed, height of

spray release, droplet size, application rate and time of day spraying is done … all

of which, the Counter-Memorial boasts, is to ensure that the spray mixture falls

only on legitimate targets (i.e., coca plants) and has minimal, if any, off-target

effects, let alone impacts in Ecuador. Tellingly, although Colombia emphasizes

that it closely monitors the spray flights and records all of this information about

them, and that it has quarterly and semi-annual reports affirming that all of these

operational parameters were consistently complied with over the seven-year

30period when flights were conducted along or close to the border with Ecuador, it

has supplied none of these actual reports to the Court.

2.6 Now we know why.

2.7 Subsequent to the filing of its Memorial, Ecuador was able to obtain all of

these data from a different source: the government of the United States of

America, which finances the aerial spraying programme and receives all of the

operational data about the flights … speed, altitude, application rate, time of day,

etc. … directly from the U.S. contractor that furnishes the pilots and conducts the

spraying on behalf of the government of Colombia. The data show conclusively

that the parameters Colombia itself asserts are essential to maintain the safety of

the programme, and avoid off-target spray drift, were systematically ignored on a

vast scale involving literally tens of thousands of noncompliant flights along or

near the border with Ecuador, virtually guaranteeing that the toxic spray mixture

would drift into Ecuadorian territory and impact humans, animals, crops, forests,

rivers and streams in Ecuador. The data show that the spray planes regularly …

tens of thousands of times … flew too fast and too high, dropped too much spray

in dangerously small droplets (which are more prone to drift) and at prohibited

times of day, violating every safeguard Colombia allegedly required to assure the

accuracy of the spraying and prevent the mixture from drifting off target or into

Ecuador. Coupled with the testimonies of victims of the spraying inside Ecuador,

31medical inquest reports, findings by UN Special Rapporteurs, and studies by

experienced non-governmental organizations, the evidence is irrefutable that

Colombia systematically violated its own regulations and repeatedly sprayed

toxic chemicals that drifted into Ecuador between 2000 and 2007, causing

substantial harm to humans, crops, flora and fauna, and to vulnerable ecosystems

and the indigenous peoples and local residents who depend on them for their

daily existence.

2.8 When Colombia’s misrepresentations are revealed and set aside, what

remains is overwhelming and incontestable proof that in carrying out its aerial

spraying programme along and close to the border with Ecuador, Colombia

violated Ecuador’s sovereignty, and caused grievous harm and risk of harm to

Ecuadorian nationals, including indigenous peoples, and their livelihoods, as well

as the environment.

2.9 Section I of Chapter 2 addresses the contents of the spray mixture itself.

It begins by demonstrating that, contrary to the claims in the Counter-Memorial,

Colombia has never disclosed the full contents of the herbicide spray. The

Counter-Memorial’s claim that only two glyphosate-based products have been

used (Roundup SL and GLY-41) as the principal components of the spray is

proven false. In fact, Colombia used a different, more dangerous product,

Roundup Export, and discontinued its use only after the United States

32Environmental Protection Agency (“U.S. EPAŽ) gave it the highest possible

toxicity rating and determined, among other things, that it causes permanent eye

damage to humans. Moreover, the Counter-Memorial identifies only one of the

multiple additional surfactants used in these products … POEA … but even there

provides only the most general description of a class of toxic chemicals.

Colombia’s admission that POEA is used says nothing about the toxicity of the

specific form of POEA included in the herbicide. Nor does the Counter-

Memorial acknowledge the scientific consensus that all forms of POEA are

highly toxic. The evidence shows that even the two herbicides that Colombia

admits in the Counter-Memorial to using as the main ingredients in its spray are

harmful, including to human health and the environment.

2.10 The same is true with respect to Colombia’s addition of Cosmo-Flux 411F

to the spray … a chemical that is produced and used only in Colombia. Although

Colombia has identified the name of the product, that entitles it to no award for

transparency. The composition of Cosmo-Flux 411F, itself a mixture, is kept

confidential. Further, the Counter-Memorial does not inform Ecuador or the

Court about the identity or toxicity of any of the other chemicals that Colombian

and U.S. government agencies have admitted are or may be present in the

mixture. These include, at the very least, formaldehyde, one or more anti-

foaming agents, dioxin, 1, 4 dioxane and COSMO IN D. All of these chemicals

pose significant danger to human health and the environment.

332.11 In Section II, Ecuador shows that the Counter-Memorial misrepresents

Colombia’s compliance with its self-imposed operational parameters, which are

intended (the Court is told) to avoid spray drift and the resulting danger to non-

target humans, animals and plants. These parameters include restrictions on

aircraft speed, height of spray application, droplet size, application rate and time

of day when spraying in permitted. Colombia’s demonstrably false

representations about its “strict complianceŽ with these parameters … its main

defense to Ecuador’s charge that it deposited harmful sprays over Ecuador …

permeate the Counter-Memorial, which invokes the parameters as a shield against

Ecuador’s claims no fewer than 30 times. They also pervade Colombia’s

diplomatic communications to Ecuador and international organizations, including

the Inter-American Commission on Human Rights, which Colombia falsely

assured of its faithful compliance with its operational requirements.

2.12 Colombia’s own flight data reveal all of these statements to be manifestly

untrue. Between November 2009 and March 2010, Ecuador obtained electronic

flight databases from the U.S. Department of State, which provides operational

support and financing for Colombia’s spray programme. The flight information,

recorded by the spray planes’ on-board data systems, and obtained by Ecuador

36
pursuant to the U.S. Freedom of Information Act , includes the airspeed, altitude,

application rate, time of day, type of aircraft, and precise geographic location

36United States, Freedom of Information Act, 55 U.S.C. § 552.

34(longitude and latitude coordinates) at the time of spraying, among other data.

The records, which include 114,525 spray lines within 10 kilometres of Ecuador’s

border, reveal Colombia’s pervasive disregard for all of its own operational

parameters. The records prove that on tens of thousands of occasions Colombia

violated its self-imposed operational restrictions on, among other things, aircraft

speed, and height of spray release, application rate, and time of day. Colombia’s

wholesale failure to abide by its own standards for preventing spray drift not only

eviscerates Colombia’s effort to prove that the toxic spray mixture did not fall on

Ecuador, but assures that it did.

2.13 Section III of Chapter 2 shows that the Counter-Memorial also

misrepresents Colombia’s alleged respect for buffer zones and other areas it

promised would be off-limits to spraying. To the contrary, Colombia has

routinely sprayed in close proximity to sensitive areas that have been set aside for

use by indigenous peoples. Colombia has also sprayed over or near human

settlements. This is demonstrated by the flight data obtained from the U.S.

Department of State.

2.14 Finally, in Section IV, Ecuador proves that when the flight data is used in

the internationally accepted drift model that Colombia itself relies upon in the

Counter-Memorial, the results demonstrate that the amount of spray deposited in

Ecuador far exceeds what is needed to kill or significantly injure non-target

35plants, including the crops that sustain the livelihood of the local population, and

is capable of inflicting significant harm on humans and animals, as well.

Section I. Colombia’s Misrepresentations Regarding the Spray Mixture

2.15 In the Counter-Memorial, Colombia claims that it has disclosed the

complete chemical composition of the spray mixture. It asserts, for example, that

the formula has been “a matter of public knowledgeŽ since 2001 , and states at

paragraph 6.3 that it has never “sought to conceal or keep secret the formula of

the sprayed mixŽ. Neither of these assertions is true. Although Colombia

identifies the main chemical components of some (but not all) of the mixtures it

has sprayed, it has never revealed their precise formulations or the identities of all

of the additives. This information is conspicuously absent from the Counter-

Memorial.

2.16 The Counter-Memorial states that, in addition to water, the herbicide

spray has three main components: (1) a glyphosate-based product (Roundup SL

until it was replaced by GLY-41, both of which contain glyphosate as the “active

ingredientŽ); (2) a surfactant called POEA; and (3) an adjuvant called Cosmo-

37Counter-Memorial of Colombia, Vol. I, Chaps. 4, 5, 6 and 7, paras. 4.42, 5.96, 5.109, 6.2-6.3,
6.5-6.6, 6.10-6.11, 7.99 (29 Mar. 2010) (hereinafter “CCMŽ).

36Flux 411F 38. With respect to the risk posed to human health and the environment,

the Counter-Memorial claims that none of these chemicals is harmful. It asserts

at paragraph 7.187, for example, that “[t]here is no scientific evidence of serious

39
threats to human and animal healthŽ posed by the spray mixture . In this section,

Ecuador demonstrates that these are blatant misrepresentations, which drastically

understate the spray’s ability to harm Ecuador’s people and natural environment.

A. T HE G LYPHOSATE -B ASED P RODUCT

2.17 In asserting that Colombia has never “conceal[ed] or ke[pt] secret the

formula of the sprayed mixŽ 40, the Counter-Memorial is specific in identifying

the only two glyphosate-based products that it claimed Colombia has ever used.

It states: “since 2000, only two glyphosate-based formulated products have been

41
used, namely, Roundup SL and GLY41Ž . As described below, the evidence

contradicts the Counter-Memorial. Colombia has used additional highly toxic

glyphosate-based formulations. Moreover, the Counter-Memorial understates the

toxicity of Roundup SL and GLY-41.

38Ibid., Chap. 4, paras. 4.42-4.56. See also Report by the Anti-Narcotics Directorate of the
Colombian National Police (DIRAN), p. 306 (8 Feb. 2010) (hereinafter “DIRAN ReportŽ). CCM,

Vol. II, Annex 67.
39See also, e.g., CCM, Chaps. 1 and 7, paras. 1.34(2), 7.10, 7.13.

40CCM, Chap. 6, para. 6.3.

41Ibid., Chap. 4, para. 4.50 (emphasis added); see also Report by the Colombian Agriculture and
Livestock Institute (ICA), p. 288 (29 Jan. 2010). CCM, Vol. II, Annex 65.

37 1. Roundup Export and Roundup Ultra

(a) Roundup Export

2.18 According to correspondence between the U.S. EPA and the Monsanto

Company, the manufacturer of the herbicide, the spray that Colombia actually

42
used was Roundup Export . Colombia’s use of Roundup Export has been

confirmed by the U.S. EPA 43.

2.19 Roundup Export is a highly toxic herbicide that, as its label makes clear,

is “Not Registered for use in the United States of AmericaŽ . Under the heading

“Hazards to Humans and Domestic AnimalsŽ, it warns:

“Keep out of reach of children.

DANGER!

CAUSES IRREVERSIBLE EYE DAMAGE.

HARMFUL IF SWALLOWED OR INHALED.

MAY CAUSE SKIN IRRITATION.

Do not get in eyes, on skin or on clothing.

Avoid breathing vapor or spray mist.

Wash thoroughly with soap and water after handling.

42
Freedom of Information Act Correspondence With United States Environmental Protection
Agency Producing Email from Stephen J. Wratten, Monsanto Company, to Jay Ellenberger,
United States Environmental Protection Agency (30 Oct. 2001). ER, Vol. IV, Annex 118.
43
Freedom of Information Act Correspondence With United States Environmental Protection
Agency Producing Roundup Export Label (3 Mar. 2009). ER, Vol. IV, Annex 112.
44
Ibid.

38 45
Remove contaminated clothing and wash before reuseŽ .

2.20 Further reflecting the danger that Roundup Export poses for human

health, its label provides the following medical instructions:

“FIRST AID: IF IN EYES, immediately flush with plenty of
water for at least 15 minutes. Get medical attention.

IF ON SKIN, immediately flush with plenty of water. Remove

contaminated clothing. Wash clothing before reuse.

IF SWALLOWED, this product will cause gastrointestinal tract
irritation. Immediately dilute by swallowing water or milk. Get

medical attention.

NOTE TO PHYSICIANS: Probable mucosal damage may

contraindicate the use of gastric lavage.

IF INHALED, remove individual to fresh air. Get medical
46
attention if breathing difficulty developsŽ .

2.21 In fact, when the U.S. EPA reviewed the formulation in 2002, it

concluded that the “product used in the coca eradication programŽ, Roundup

47
Export, warranted the highest possible toxicity rating: “toxicity category IŽ .

45Ibid.

46Freedom of Information Act Correspondence With United States Environmental Protection
Agency Producing Roundup Export Label (3 Mar. 2009). ER, Vol. IV, Annex 112.

47United States Environmental Protection Agency, Office of Prevention, Pesticides and Toxic
Substances, Report on Issues Related to the Aerial Eradication of Illicit Coca in Colombia,
Response from EPA Assistant Administrator Johnson to Secretary of State, p. 8 (19 Aug. 2002)

(hereinafter “EPA 2002 AnalysisŽ). ER, Vol. III, Annex 45.

39Among the reasons for concluding that the spray was so dangerous was the fact

48
that it causes “irreversible eye damageŽ .

2.22 Given the danger posed by spraying such a highly toxic substance, the

U.S. EPA determined that it was far too toxic for use in Colombia’s aerial

spraying programme. It therefore recommended in August 2002 that a less

49
harmful alternative with a “lower potential for acute toxicityŽ be used . This

change was necessary, the agency determined, “due to the acute eye irritation

caused by the concentrated glyphosate formulated productŽ 5.

2.23 Nevertheless, Colombia appears to have continued to use Roundup

Export. Thus, Colombia regularly sprayed within 10 kilometres of Ecuador a

product with the highest possible toxicity rating that causes “irreversible eye

damageŽ and “skin irritationŽ and is “harmful if swallowed or inhaledŽ . The 51

only change in formulation acknowledged in the Counter-Memorial did not occur

until 2005. It is no wonder that during the period when Roundup Export was

used, many of Ecuador’s border residents reported serious eye damage, skin

48 Ibid.; Freedom of Information Act Correspondence With United States Environmental
Protection Agency Producing Roundup Export Label (3 Mar. 2009) (indicating on the Roundup
Export label that the product “CAUSES IRREVERSIBLE EYE DAMAGEŽ). ER, Vol. IV,

Annex 112.
49EPA 2002 Analysis, op. cit., p. 8. ER, Vol. III, Annex 45; see also ibid., pp. 18-19.

50Ibid.

51Freedom of Information Act Correspondence With United States Environmental Protection
Agency Producing Roundup Export Label (3 Mar. 2009). ER, Vol. IV, Annex 112.

40irritation and respiratory difficulty following spraying events 52. As Ecuador

described in the Memorial and further elaborates in Chapter 3 of this Reply, large

numbers of Ecuadorians exhibited these precise symptoms upon exposure to

Colombia’s spray mixture during this period.

(b) Roundup Ultra

2.24 In addition to the troubling evidence regarding the use of Roundup

Export, the Counter-Memorial fails to acknowledge the use of another

glyphosate-based product. Contrary to the representations made in the Counter-

Memorial, Colombia has on several occasions informed Ecuador that it used

Roundup Ultra. For example, in a diplomatic note dated 14 July 2001,

Colombia stated:

“The herbicide used by the Program of Eradication of Illicit Crops
- PECI- is a commercial formulation made with glyphosate, which
has the registered name of Roundup Ultra, manufactured by the
53
company Monsanto Inc.Ž .

2.25 Colombia’s diplomatic note represented that Roundup Ultra “is at the

bottom of the universally accepted toxicity scaleŽ and assured Ecuador that “this

productŽ is “less irritatingŽ than “dish detergentsŽ, and its toxicity is comparable

52See infra Chap. 3, Section I(A-C).
53
Diplomatic Note DM/AL No. 25009, sent from the Ministry of Foreign Affairs of Colombia to
the Ministry of Foreign Affairs of Ecuador (14 July 2001). EM, Vol. II, Annex 42.

41to “baby shampooŽ 54. (As explained in paragraph 2.21, at the time of that note

the U.S. EPA was reporting that the product being sprayed had the highest

possible toxicity rating).

2.26 Colombia’s representation that it used Roundup Ultra was repeated at a

bilateral meeting with Ecuador from 13 to 15 February 2002. Colombia then

stated that the formulation “currentlyŽ in use was “Roundup UltraŽ, and that “[i]n

55
the futureŽ Colombia would “use Roundup SLŽ . Thus, on at least two

occasions … in July 2001 and February 2002 … Colombia represented to Ecuador

that it was using Roundup Ultra. These representations cannot be squared with

the Counter-Memorial, where Colombia admits to using only Roundup SL and

GLY-41. Nor are they consistent with the U.S. government’s statements that the

actual product used by Colombia at that time was Roundup Export.

2.27 Assuming quod non that Colombia was accurate when it said it used

Roundup Ultra, Colombia was still wrong when it told Ecuador that Roundup

Ultra is no more dangerous than “baby shampooŽ. Roundup Ultra is also a

dangerous product. For example, the Roundup Ultra label contains the following

warnings:

54Ibid.
55
Republic of Ecuador, Ministry of Environment, Joint Report from the Workshop: Eradication of
Illicit Crops, Bogotá, Colombia, p. 10, para. 14 (13-15 Feb. 2002) (emphasis added). EM, Vol.
IV, Annex 163.

42 “Keep out of reach of children.

CAUTION!

CAUSES EYE IRRITATION.

Avoid contact with eyes or clothing.

FIRST AID: IF IN EYES, flush with plenty of water. Get
medical attention if irritation persistsŽ6.

2.28 Ecuador doubts that the authors of the Counter-Memorial … or anyone

else, for that matter … would consider shampooing their babies with this product.

And not only babies are advised to avoid it. The label warns: “Do not apply this

product in a way that will contact workers or other persons, either directly or

through drift. Only protected handlers may be in the area during applicationŽ . 57

2.29 The Roundup Ultra label also makes clear that it is dangerous for animals,

warning that:

“ingestion of this product or large amounts of freshly sprayed
vegetation may result in temporary gastrointestinal irritation
(vomiting, diarrhea, colic, etc.). If such symptoms are observed,

provide the animal with plenty of fluids to prevent dehydration.
Call a veterinarian if symptoms persist for more than 24 hoursŽ . 58

56
United States Roundup Ultra Label. ER, Vol. III, Annex 27. The Advisor on the Plan
Colombia Illicit Eradication Program stated that the spraying programme used a formulation that
is “commercialized in the United States under the name Roundup UltraŽ. See Republic of
Colombia, Advisor on the Plan Colombia Illicit Crop Eradication Program, Certain Toxicological

and Technical Considerations For Aerial Spraying With Glyphosate on Illicit Crops, Bogotá,
Colombia, p. 2 (9 July 2001). ER, Vol. V, Annex 138.
57
United States Roundup Ultra Label. ER, Vol. III, Annex 27.
58Ibid.

432.30 Accordingly, even if Colombia did use Roundup Ultra (contrary to its

assertions in the Counter-Memorial and the U.S. government’s reports), it still

sprayed along the border with Ecuador a highly toxic product that is dangerous to

human health and the environment.

2. Roundup SL and GLY-41

2.31 The two glyphosate-based products that Colombia admits to spraying …

Roundup SL and GLY-41 … are no less dangerous to humans, animals, crops or

the environment in Ecuador than Roundup Export and Roundup Ultra.

(a) Roundup SL

2.32 The danger of Roundup SL to human health is confirmed by the product

label, which emphasizes its hazardous nature, particularly with respect to human

eyes and skin:

“Avoid contact with eyes and skin. Causes irritation. Upon
completion of work, change clothes and wash with plenty of soap
and waterŽ 59.

2.33 The label further instructs: “In the event of contact with eyes, wash them

immediately with plenty of water for 15 minutesŽ and “[i]f it falls on the skin,

59Colombia Roundup SL Label. EM, Vol. III, Annex 115.

44 60
wash with plenty [of] soap and waterŽ . These warnings are similarly

emphasized by the Roundup SL Technical Data Sheet, which states that the

product causes “moderateŽ to “severeŽ eye irritation and is irritating to the skin . 61

2.34 The Roundup SL label also warns against ingesting the product, stating:

“If ingested, drink water to dilute it. Call a doctor immediately or bring the

62
patient to a doctor and show them a copy of this labelŽ . Similarly, the

63
Technical Data Sheet unambiguously warns that it is “harmful if ingestedŽ . It

also warns that the product is of “middle toxicity to rainbow troutŽ, thus making

it hazardous to fish, and that it “must not be poured near channels, drains, nor

64
running water or water reservoirsŽ . This directive is repeated by the label,

which states: “Do not contaminate water sources. Do not apply or pour surplus

product directly over water bodiesŽ . 65

2.35 Although the Counter-Memorial brushes aside these warnings and claims

that Roundup SL is incapable of causing harm, in fact, Colombia was forced to

60
Ibid.
61
Safety Data Sheet for Roundup SL, p. 424. CCM, Vol. III, Annex 133.
62Colombia Roundup SL Label. EM, Vol. III, Annex 115.

63Safety Data Sheet for Roundup SL, p. 423. CCM, Vol. III, Annex 133.

64Ibid.

65Colombia Roundup SL Label. EM, Vol. III, Annex 115. The label also makes clear that the
spray will kill or seriously injure crops and other beneficial plants: “During application, avoid
allowing the product to fall on leaves or green parts of the stems of cropsŽ. Colombia Roundup

SL Label. EM, Vol. III, Annex 115.

45abandon spraying of the product precisely because of its harmfulness. This is

clear from footnote 312, which admits that “[a]s of 2005, with the purpose of

avoiding the possible effects associated with the use of POEA surfactant

contained in Roundup SLŽ, specifically the “the risk of eye irritationŽ, the

“Colombian Government decided to use a new glyphosate-based formulated

product, called GLY41Ž 6.

2.36 Thus, the Counter-Memorial leaves no doubt that for at least the first five

years of spraying adjacent to and near Ecuador … i.e., between 2000 and 2005 …

Colombia sprayed at least one (and possibly more) glyphosate formulation that

had to be discontinued due to the danger it posed to human health. There can be

no truth to Colombia’s assertion that Roundup SL is not harmful. The Counter-

Memorial itself admits otherwise.

(b) GLY-41

2.37 The Counter-Memorial also ignores the dangers posed by GLY-41, the

herbicide with which Colombia replaced Roundup SL in 2005, even though the

label for GLY-41 cautions that the mixture is harmful to human health:

66CCM, Chap. 4, para. 4.50, n. 312. Notably, however, reports by the U.S. Government that
describe the spray formulation during this time period do not reflect or otherwise acknowledge
any such change.

46 “CAUTION: THIS PRODUCT CAUSES EYE IRRITATION. Avoid
contact with eyes and clothesŽ 6.

2.38 The Counter-Memorial also ignores that the Safety Data Sheet for GLY-

41, which expressly warns against allowing the product to come into contact with

human skin:

“In case of skin contact: Wash the skin immediately with water
and soap. If possible, remove the shoes and the clothes of the

patient. Contaminated clothes must be washed separately before
wearing it againŽ .8

2.39 The danger of inhaling GLY-41 is also stressed by the Safety Data Sheet:

“In case of inhaling: Take the person to a fresh air area; if he/she is

not breathing, provide artificial breathing 69d oxygen if necessary.
LOOK FOR MEDICAL ASSISTANCEŽ .

2.40 The GLY-41 label leaves no doubt about the risk that it poses to animals,

as well as humans:

“Ingestion of this product or large amounts of freshly sprayed
vegetation may result in temporary gastrointestinal irritation

(vomiting, diarrhea, colic, etc.). If such symptoms are observed,
provide the animal with plenty of fluids to prevent dehydration.
70
Call a veterinarian if symptoms persist for more than 24 hoursŽ .

67
Label and Safety Data Sheet for GLY-41. CCM, Vol. III, Annex 134.
68Ibid.

69Ibid.
70
Ibid., p. 428. CCM, Vol. III, Annex 134. The label also makes clear that the chemical will
destroy crops and other beneficial plants: “AVOID CONTACT OF HERBICIDE WITH
FOLIAGE, GREEN STEMS, EXPOSED ROOTS OR FRUIT OF CROPS, DESIRABLE

472.41 In keeping with its pattern of ignoring or excising evidence of the dangers

posed by its spray products, and then extolling its studious reliance on substances

as innocent as “baby shampooŽ, Colombia redacts from the English translation of

the product label for GLY-41 (included in an annex to the Counter-Memorial) the

pictorial warnings that graphically represent the danger the product poses to

71
human health and the environment .

72
Figure 2.1. Excerpt From GLY41 Label

According to the official Andean Community Technical Manual on Registration

and Control of Pesticides, these warning symbols indicate that the applicator

should use gloves and boots for protection, as well as a respirator mask. The

applicator should also wash his or her body after using the product 73.

PLANTS AND TREES, BECAUSE SEVERE INJURY OR DESTRUCTION MAY RESULTŽ.
Ibid.

71Colombia GYL-41 SL Label and Safety Data Sheet. ER, Vol. III, Annex 28.
72
Ibid.
73
Andean Community, Resolution 630, Andean Technical Manual for the Registration and
Control of Chemical Pesticides for Agricultural Use, p. 129 (25 June 2002). EM, Vol. II, Annex
17.

48Figure 2.2. Warning Symbols From GLY-41 Label … Human Health

With respect to animals and the environment, the warnings dictate “do not

74
contaminate watercoursesŽ and “do not permit animals in the treated areaŽ .

Figure 2.3. Warning Symbols From GLY-41 Label … Animals & Environment

74Ibid.

492.42 In short, GLY-41 bears no resemblance to baby shampoo. It is a

dangerous product that poses serious risks for human health and the environment.

B. OTHER C HEMICALS

1. POEA

2.43 All glyphosate-based herbicides, including Roundup Export, Roundup

Ultra, Roundup SL and GLY-41, use glyphosate as their “active ingredientŽ,

meaning that this chemical does the main work of killing plants. But glyphosate

is not the only chemical in these glyphosate-based products, which are also called

glyphosate-based “formulationsŽ. Such herbicides include additional chemicals

75
known as “formulantsŽ . One class of “formulantsŽ is composed of surfactants,

which are designed to increase lethality by improving the glyphosate’s ability to

penetrate the plant . Not only do these surfactants magnify the formulation’s

effect on plants, but they can be even more toxic to human health and the

environment than glyphosate itself.

75Formulants may also be called “inert ingredientsŽ or “adjuvantsŽ. See Stephen C. Weller,
Ph.D., Glyphosate-Based Herbicides and Potential for Damage to Non-Target Plants Under
Conditions of Application in Colombia, p. 7 (Jan. 2011) (hereinafter “Weller ReportŽ). ER, Vol.

II, Annex 3.
76Keith R. Solomon et al., Environmental and Human Health Assessment of the Aerial Spray
program for Coca and Poppy Control in Colombia , p. 23 (31 Mar. 2005) (hereinafter “Solomon

et al., 2005Ž). CCM, Vol. III, Annex 116; EPA 2002 Analysis, op. cit., p. 11. ER, Vol. III,
Annex 45.

502.44 The only formulant that Colombia admits in the Counter-Memorial to

77
using in its various spray mixtures is a surfactant called POEA . But that

admission reveals little, other than that Colombia sprays a hazardous product.

POEA is not a single chemical, but instead describes an entire category of

chemicals with a range of toxicities and effects 78. Therefore, unless Colombia

provides specific information about which POEA surfactant it uses, it is

impossible for Ecuador (or the Court) to determine the precise toxicity of the

POEA that has been sprayed.

2.45 Nevertheless, this much is clear: all chemicals that are classified as POEA

are harmful to human health and to the environment. As discussed in the

Memorial, POEA causes severe eye damage, among other serious health and

environmental effects 7. Even Colombia’s expert report acknowledges that

POEA is a “worst case for surfactant toxicityŽ and “has been identified as a major

77 POEA is an abbreviation for polyethoxylated tallow amine, also referred to as

polyethoxyethylene alkylamine.
78Federal Republic of Germany, Federal Institute of Risk Assessment, Health Assessment Report

POE-tallowamines, p. 6 (6 Sep. 2010). ER, Vol. III, Annex 26; Weller Report, op. cit., p. 15. ER,
Vol. II, Annex 3; Charles A. Menzie, Ph.D. & Pieter N. Booth, M.S., Response to: “Critique of
Evaluation of Chemicals Used in Colombia’s Aerial Spraying Program, and Hazards Presented
to People, Plants, Animals and the Environment in Ecuador,” As Presented in: Counter-
Memorial of the Republic of Colombia, Appendix, p. 11 (Jan. 2011) (hereinafter “Menzie & Booth
ReportŽ). ER, Vol. II, Annex 6.

79See EM, Chap. 5, paras. 5.18-5.19; CCM, Chap. 4, para. 4.50, n. 312; EPA Analysis, 2002, op.
cit., p. 10. ER, Vol. III, Annex 45.

51 80
contributor to the aquatic toxicity of glyphosate formulationsŽ . According to

81
the U.S. EPA, POEA causes severe skin irritation and is corrosive to the eyes .

A study of POEA published by Germany’s Federal Institute of Risk Assessment

(BfR) concluded that POEA is a skin irritant and skin sensitizer and is strongly

irritating to the eyes, noting that POEA is a “surface-active substanceŽ for which

82
“certain ability to penetrate through biological membranes can be assumedŽ .

The study also recommended that POEA be labelled for acute oral toxicity due to

“strong mucosal irritationŽ and the likely occurrence of “systemic effects after

83
ingestion or inhalationŽ . Colombia’s own National Health Institute has stated

that POEA may cause gastrointestinal damage, kidney and liver damage, affect

the central nervous system, destroy red blood cells and induce breathing

84
difficulties . POEA has also been linked to problems with pregnancy and even

80
Dr. Stuart Dobson, Critique of “Evaluation of Chemicals Used in Colombia’s Aerial Spraying
Program, and Hazards Presented to People, Plants, Animals and the Environment in Ecuador”
Menzie et al., pp. 521, 528 (2009) (hereinafter “Dobson ReportŽ). CCM, Vol. I, Appendix.

81United States Environmental Protection Agency, Office of Pesticide Programs, Details of the
2003 Consultation for the Department of State: Use of Pesticide for Coca and Poppy Eradication

Program in Colombia, p. 13 (June 2003) (hereinafter “EPA 2003 AnalysisŽ). EM, Vol. III,
Annex 146.
82
Federal Republic of Germany, Federal Institute of Risk Assessment, Health Assessment Report
POE-tallowamines, pp. 4, 8, 20, 21 (6 Sep. 2010). ER, Vol. III, Annex 26.
83
Ibid.
84
Government of Colombia National Health Institute, Evaluation of Effects of Glyphosate on
Human Health in Illicit Crop Eradication Program Influence Zones, p. 5 (2003). EM, Vol. II,
Annex 96.

52 85 86
cancer . These effects were detailed in the Memorial , but the Counter-

Memorial completely ignores them.

2.46 Indeed, the high level of POEA in Roundup SL was one of the reasons

Colombia switched to GLY-41 in 2005. As the Counter-Memorial concedes,

Roundup SL was replaced by GLY-41 to “avoid[] the possible effects associated

with the use of the POEA surfactant . . . in particular the risk of eye irritationŽ . 87

Thus, based on this admission alone, the Court can conclude that Colombia used

an herbicide with an unacceptably high level of POEA for at least four years

88
while spraying in close proximity to Ecuador . It remains for Colombia to

demonstrate that the POEA it used after 2005 is less harmful (if, in fact, it

switched to a different and less harmful type of POEA).

2. Additional Chemicals

2.47 POEA is not the only formulant added by Colombia to its glyphosate-

based spray mixtures. The scientific reports relied upon by Colombia, including

its own expert reports, show that other formulants are also present in the toxic

cocktail sprayed along the border with Ecuador. For example, the Solomon

85
Ibid.; EPA 2003 Analysis, op. cit., p. 13. EM, Vol. III, Annex 146.
86
EM, Chap. 5, para. 5.18.
87CCM, Chap. 4, para. 4.50, n.312.

88In fact, the amount of POEA in GLY-41, the formulation that replaced Roundup SL in 2005, is
unacceptably high as well.

53study, which was prepared at Colombia’s request in 2005 and which features

prominently in the Counter-Memorial, states that: “The glyphosate formulation

89
used in Colombia includes several formulantsŽ . However, none of these

chemical components of the spray mixture have been identified, other than

POEA. Nor are they identified in Colombia’s expert report by Dr. Stuart Dobson

submitted with the Counter-Memorial, despite the fact that the Dobson Report

90
also acknowledges that POEA is not the only added formulant . Specifically, the

Dobson Report states that the “formulation uses predominantly POEA as its

surfactantŽ . In other words, there are other surfactants as well, none of which

Colombia has identified, and which are still unknown to Ecuador and the Court.

2.48 Reports by the U.S. government confirm that Colombia has not fully

disclosed all the chemicals in the spray mixture. For example, multiple reports by

the U.S. EPA state that the spray contains an unnamed ingredient for which

“information [is] not included as it may be entitled to confidential treatmentŽ . 92

Similarly, the U.S. Department of State reported that the spray contains a

89Solomon et al., 2005, op. cit., p. 23, 24 (emphasis added). CCM, Vol. III, Annex 116.
90
Dobson Report, op. cit., p. 521. CCM, Vol. I, Appendix.
91
Ibid. (emphasis added).
92EPA 2002 Analysis, op. cit., p. 10 (listing the “components of the glyphosate productŽ to

include Polyoxyethylene alkylamine (“POEAŽ) and another unnamed ingredient for which
“information [is] not included as it may be entitled to confidential treatmentŽ). ER, Vol. III,
Annex 45. See also EPA 2003 Analysis, op. cit., p. 13. EM, Vol. III, Annex 146.

54 93
“surfactant blendŽ . In other words, POEA is just one of the surfactants in a

“blendŽ; the other ingredients are not disclosed.

2.49 Colombia’s persistent refusal to identify the other chemicals in the spray

mixture is of serious concern, because these chemicals significantly contribute to

the mixture’s toxicity, and the consequent risks to humans, animals and plants

that are exposed to it. As the Dobson Report explains, “[s]urfactants play the

principal role in the environmental toxicity of formulations of glyphosate and the

94
Colombian spray mix; they are probably key in symptoms to humansŽ . This is

confirmed by the 2005 Solomon study, which states that “it is the surfactants that

determine the toxicity of the formulationŽ, and by the U.S. EPA, which explains

that “formulations of glyphosate products that EPA has registeredŽ are “more

toxic than glyphosate aloneŽ . 95

2.50 Yet Colombia has thus far refused to identify all of the formulants it uses

in the spray mixture. Not even its own experts appear to know what they are,

although they know enough to state that whatever is used is more toxic than the

93
United States Department of State, Bureau for International Narcotics and Law Enforcement
Affairs, Report on Issues Related to the Aerial Eradication of Illicit Coca in Colombia: Chemicals
Used in the Aerial Eradication of Illicit Coca in Colombia and Conditions of Application, p. 1
(Sep. 2002) (hereinafter “Chemicals UsedŽ). EM, Vol. III, Annex 144.

94Dobson Report, op. cit., p. 546. CCM, Vol. I, Appendix.

95Solomon et al., 2005, op. cit., p. 93. EM, Vol. III, Annex 151; EPA 2002 Analysis, op. cit., p.
32. ER, Vol. III, Annex 45; see also EM, Chaps. 2 and 5, paras. 2.41, 5.16-5.18; Weller Report,
op. cit., pp. 7-8. ER, Vol. II, Annex 3.

55 96
glyphosate itself . Nevertheless, as if Colombia failed to read what its experts

wrote … or chose to ignore them … the Counter-Memorial brazenly represents that

the chemical composition of the spray mixture is “a matter of public

knowledgeŽ . 97

3. Cosmo-Flux 411F

2.51 The Counter-Memorial states that Colombia adds an adjuvant known as

Cosmo-Flux 411F (“Cosmo-FluxŽ) to the glyphosate-based spray mixtures that it

admits using, i.e., Roundup SL and GLY-41 . 98 The Counter-Memorial then

falsely asserts that the chemical composition of Cosmo-Flux is known and non-

toxic.

2.52 Colombia has never revealed the composition of Cosmo-Flux, a mixture

of chemicals that is only produced and used in Colombia. (As Ecuador noted in

the Memorial, and as Colombia did not dispute in the Counter-Memorial, a

British chemical manufacturer refused to provide Colombia with the chemicals

96Dobson Report, op. cit., p. 546. CCM, Vol. I, Appendix; see also Solomon et al., 2005, op. cit.,
p. 93. EM, Vol. III, Annex 151.

97CCM, Chap. 5, para. 5.96; see also CCM, Chaps. 4, 6 and 8, paras. 4.45, 6.36, 8.60.

98Ibid., Chap. 4, paras. 4.51-4.56. According to the Solomon Report (2005), an “adjuvantŽ is a
chemical added to the formulated product at the time of application to increase efficacy and ease
of use. Solomon et al., 2005, op. cit., p. 23. EM, Vol. III, Annex 151.

56used to produce Cosmo-Flux, explaining that the spray mixture “had not properly

99
been testedŽ for use in aerial spraying .).

2.53 The specific ingredients contained in Cosmo-Flux are labelled

“confidentialŽ in reports by the U.S. government. For example, a 2002 report by

the U.S. EPA states:

“The Cosmo-Flux 411F adjuvant used in the glyphosate tank mix
is produced by a Colombian company and is not sold in the U.S. . .
. Cosmo-Flux 411F consists mainly of (information not included

as it may be entitled to confidential treatment) with a non-ionic
surfactant blend primarily composed of (information not included
as it may be entitled to confidential treatment)Ž 100.

2.54 The secret nature of Cosmo-Flux is alluded to in the 2005 Solomon study,

which states only that the active ingredient in Cosmo-Flux is a “mixtureŽ

containing certain “linear and aryl polyethoxylatesŽ. But it does not provide any

101
details about the “mixtureŽ .

2.55 Although Colombia’s failure to disclose the chemical composition of

Cosmo-Flux makes it impossible for Ecuador (or the Court) to evaluate the full

extent of its toxicity, there is no doubt that Cosmo-Flux makes the spray mixture

more toxic. To be sure, the Counter-Memorial blithely claims that Cosmo-Flux

99EM, Chap. 5, para. 5.24.

100EPA 2002 Analysis, op. cit., p. 7 (emphasis in original). ER, Vol. III, Annex 45; see also EPA
2003 Analysis, op. cit., p. 14. EM, Vol. III, Annex 146.

101Solomon et al., 2005, op. cit., p. 24. EM, Vol. III, Annex 151.

57 102
“does not increase the toxicity of the mixtureŽ . That assertion is impossible to

reconcile with the 2005 Solomon study, however, which concludes that “the

toxicity of the mixture of glyphosate and Cosmo-FluxŽ is “greater than that

reported for formulated glyphosate itselfŽ 103. How much more toxic, we cannot

know … until Colombia reveals the chemical composition of Cosmo-Flux. What

we can … and do … know, is that, based on Colombia’s own expert reports, its

statement that Cosmo-Flux “does not increase the toxicity of the mixtureŽ is

another misrepresentation.

2.56 Indeed, Colombia uses Cosmo-Flux precisely because of its ability to

104
enhance the killing power of glyphosate . As Colombia’s expert, Dr. Dobson,

has admitted, “the addition of extra surfactant Cosmo-Flux . . . increases the

potency of the glyphosate formulation to coca plants fourfoldŽ and that “plants

other than cocaŽ will also be “more susceptible to the herbicide spray enhanced

105
with the adjuvantŽ . Cosmo-Flux’s Colombian manufacturer also

acknowledges that the product “substantially modifies the biological activity of

102CCM, Chap. 4, para. 4.53.
103
Solomon et al., 2005, op. cit., p. 86. EM, Vol. III, Annex 151; see also ibid., p. 69.
104
Ronald T. Collins & Charles S. Helling, Surfactant-Enhanced Control of Two Erythroxylum
Species by Glyphosate, Weed Technology, Vol. 16, p. 851 (2002) (identifying adjuvants that
increased glyphosate phytotoxicity fourfold and explaining that “[i]n consequence, the glyphosate
mixture used in Colombia for coca eradication was modified with substantially improved
resultsŽ). EM, Vol. III, Annex 141; CCM, Chap. 4, para. 4.53 (noting that Cosmo-Flux was
selected as a result of research by Collins and Helling); see also Chemicals Used, op. cit., p. 1.

EM, Vol. III, Annex 144.
105Dobson Report, op. cit., p. 538. CCM, Vol. I, Appendix.

58 106
agrochemicalsŽ . Thus, Colombia’s denial that Cosmo-Flux makes the spray

107
mixture more toxic cannot be believed .

4. Colombia’s Assertion That “No Other Ingredients” Have Been Used

108
2.57 Notwithstanding the Counter-Memorial’s assertion to the contrary ,

Cosmo-Flux is not the only chemical that is added to the glyphosate-POEA

mixture. The Counter-Memorial’s claim is “supportedŽ by the Colombian

National Police’s Anti-Narcotics Directorate, in a report dated 8 February 2010,

which appears to have been prepared for the present case. The report states

109
without exception that “no other ingredients have been used in the programŽ .

Once again, the falsity of Colombia’s statements is exposed by the evidence,

including official reports of the U.S. government and Colombia’s diplomatic

communications to Ecuador.

2.58 To cite a few examples, in its 14 July 2001 diplomatic note to Ecuador,

Colombia stated that the spray mixture contains dioxin 110, a chemical associated

with significant human health problems, including reproductive and

106
Cosmoagro, S.A., Cosmo-Flux 411F. EM, Vol. III, Annex 112.
107As explained in Ecuador’s Memorial, Cosmo-Flux also poses risks to human health. See EM,

Chap. 5, para. 5.22.
108CCM, Chap. 4, para. 4.42-4.56.

109DIRAN Report, op. cit., p. 307 (emphasis added). CCM, Vol. II, Annex 67.

110CCM, Chap. 6, para. 6.15, quoting Diplomatic Note DM/AL No. 25009, sent from the Ministry
of Foreign Affairs of Colombia to the Ministry of Foreign Affairs of Ecuador (14 July 2001).
EM, Vol. II, Annex 42.

59developmental problems, damage to the immune system, interference with

hormones, and cancer; dioxin is also a long-lasting environmental contaminant 111.

2.59 The following year, at a meeting from 13 to 15 February 2002, Colombia

112
informed Ecuador that the spray mixture also contains 1,4 Dioxane . Colombia

has acknowledged that this chemical is “demonstrated to have a carcinogenic

capability in animals and to cause harm to human livers and kidneysŽ 113.

According to the World Health Organization, 1,4 Dioxane has genotoxic potential

and is regulated as a drinking water contaminant 114.

2.60 Ecuador’s Memorial noted that the U.S. Department of Agriculture

(USDA), which was tasked with evaluating the aerial spraying programme, stated

in 2001 (that is, over a year after the spraying began alongside Ecuador) that the

spray mixture contains formaldehyde. Because this substance poses significant

111United Nations World Health Organization, Dioxins and Their Effects on Human Health,

available at http://www.who.int/mediacentre/factsheets/fs225/en/index.html(last visited 14 Jan.
2011).
112
Republic of Ecuador, Ministry of Environment, Joint Report from the Workshop: Eradication
of Illicit Crops, Bogotá, Colombia, p. 10, para. 14 (13-15 Feb. 2002). EM, Vol. IV, Annex 163.
See also Republic of Colombia, Ministry of Environment, Division of Environmental Licenses,
Order No. 599, p. 5 (23 Dec. 1999). ER, Vol. V, Annex 132.

113Republic of Colombia, Ministry of Environment, Division of Environmental Licenses, Order
No. 599, p. 16 (23 Dec. 1999). ER, Vol. V, Annex 132.

114United Nations World Health Organization, Guidelines for Drinking Water Quality, § 12,54(a)
1,4 Dioxane, available at

http://www.who.int/water_sanitation_health/dwq/chemicals/gdwq366_366a.p… (last visited 2
Dec. 2010).

60 115
human health risks, the USDA recommended that Colombia cease using it . In

the Counter-Memorial, Colombia does not attempt to explain the USDA’s

statement that formaldehyde is or was included in the spray mixture. Indeed,

Colombia’s Dobson Report confirms that an unnamed “preservativeŽ is “addedŽ

to the spray mixture and notes that “[p]reservatives may also play a significant

116
role in specific effects on humansŽ . Although the Dobson Report does not

117
identify this “preservativeŽ, it observes that it could be “formaldehydeŽ .

Colombia is so secretive about what it puts into its spray mixture that even its

own experts, hired to provide scientific support for the aerial spraying

programme, are left to guess about some of the ingredients.

2.61 In addition to dioxin, 1,4 Dioxane and formaldehyde, there is evidence

that other chemicals are added as well. In that regard, the U.S. Government’s

Congressional Research Service reported, based on statements by the U.S.

Department of State, that the spray includes an “anti-foaming additiveŽ called

118
COSMO IN D . This is especially troubling because the Colombian Ministry

of Health describes COSMO IN D as “extremely toxic due to its severe eye

115
EM, Chap. 5, para. 5.28.
116
Dobson Report, op. cit., pp. 521, 546. CCM, Vol. I, Appendix.
117Ibid.

118United States Congressional Research Service, Andean Regional Initiative (ARI): FY2002
Assistance for Colombia and Neighbors, p. 25 (14 Dec. 2001). ER, Vol. III, Annex 43.

61irritation effectsŽ19. To the same effect, a separate report by the USDA states

that Colombia includes a “second additive to minimize foaming of the spray

120
tankŽ. The report does not identify this anti-foaming agent .

*

2.62 In sum, the Counter-Memorial misrepresents both the contents of

Colombia’s aerial spray mixture, and its toxicity to humans, animals, plants and

the environment. Colombia’s assertion that the chemical contents of the spray

mixture are “publicly knownŽ would be laughable, if it were not for the

dangerously high level of toxicity of the mixture and the serious risks of harm it

poses (and has caused) to people, animals, plants and the environment in

Ecuador. Colombia’s own description of the mixture’s contents, and resulting

toxicity, bears scant resemblance to the truth.

2.63 As shown, Colombia sprayed Roundup Export, a highly toxic herbicide

formulation that the U.S. EPA determined had to be discontinued given its

propensity to cause permanent eye damage. During the same time period that

Roundup Export was used, Colombia represented to Ecuador that it was using

another product, Roundup Ultra, which it likewise fails to mention in the

119
Toxicological Opinion Nº 0685, regarding the toxicological classification of the mix
Glyphosate + POEA + Cosmo-Flux (1%), Colombian Health Ministry, 8 Oct. 2001. CCM, Vol.
II, Annex 44.
120
Charles S. Helling & Mary J. Camp, United States Department of Agriculture, Verifying Coca
Eradication Effectiveness in Colombia, pp. 10-11 (date unknown). EM, Vol. III, Annex 160.

62Counter-Memorial, and which is also highly toxic. The products that Colombia

admits to using … Roundup SL and GLY-41 … are no better: among other safety

directives, their labels expressly warn that these products cause eye irritation and

instruct against allowing inhalation or contact with human skin. Worse yet, the

spray mixture contains other dangerous chemicals, including POEA and Cosmo-

Flux, as well as others that the Counter-Memorial fails to acknowledge, including

unidentified anti-foaming agents and preservatives. All of these chemicals are

widely recognized as harmful to human health and the environment, including by

Colombia’s own experts.

2.64 The following section addresses the reckless and irresponsible manner in

which Colombia has sprayed this secret and highly toxic chemical stew …

including on people, animals, plants, forests and water bodies in Ecuador.

Section II. Colombia’s Misrepresentations Regarding Spraying Operations

2.65 The Counter-Memorial relies heavily on the alleged rigor with which

Colombia supposedly enforces the spray programme’s operational parameters.

Colombia claims that, by its full and faithful compliance with these requirements

… which strictly regulate the manner in which spraying operations are allegedly

conducted, including flight speed, altitude, spray application rate, droplet size,

time of day, and other parameters … it prevents any spray from reaching Ecuador,

63making it impossible for Ecuador to have been harmed by the aerial spraying

programme. Apart from denying the capacity of the spray itself to cause harm (as

addressed in the previous section), Colombia’s defense in this case rests on its

argument that spraying operations are conducted in a scrupulously careful manner

that precludes any possibility that the spray mixture reaches across the border into

Ecuador or affects people, animals, plants or the environment there. In one of the

many places where Colombia makes this argument, paragraph 4.69 states that

Colombia “set minimum and maximum figures in the Environmental

Management Plan for the parameters upon which drift is contingent, with the

purpose of reducing it as much as possible. These parameters are strictly

121
observed by the personnel involved in spraying operationsŽ . Based on

Colombia’s purportedly rigorous compliance with these “strict technical

parametersŽ and the resultant reduced drift, the Counter-Memorial concludes that

122
“no damage could have occurred in Ecuadorian territoryŽ .

2.66 For this self-serving conclusion, Colombia relies on a report from its very

own National Narcotics Directorate (“DNEŽ), dated 4 February 2010, that was

obviously prepared for this litigation. This “unbiasedŽ report claims the aerial

spraying is a “highly technical program that is carried out pursuant to the strictest

parameters in order to ensure that its implementation poses no risks to human

121CCM, Chap. 4, para. 4.69 (emphasis added); see also CCM, Chap. 7, para. 7.17.

122Ibid., Chap. 7, para. 7.5.

64 123
health or the environmentŽ . It assures that the programme “complies with all

the environmental parameters set out for its implementation and to assess impacts

on the environment, human health and farming activitiesŽ 124. Unsurprisingly, a

similar for-purposes-of-litigation report (also dated 4 February 2010) has been

provided by Colombia’s equally “unbiasedŽ Anti-Narcotics Direction of the

Colombian National Police (“DIRANŽ). This report, too, declares that “the

operational parameters foreseen in the Environmental Management Plan, such as

flight altitude, maximum wind speed and herbicide dosage, are fully observedŽ 125.

2.67 The adequacy of Colombia’s “Environmental Management PlanŽ

(“EMPŽ) and its “technical parametersŽ for preventing spray drift and avoiding

harm in Ecuador are addressed in Chapter 4. In that Chapter, Ecuador shows,

inter alia, that Colombia’s EMP, upon which so much of its argument stands, was

prepared without the benefit of an environmental impact assessment, violates

Colombia’s own environmental laws, and sets standards for controlling drift in

aerial spraying operations that are far more permissive than those in the rest of the

world. In this Chapter, Ecuador shows that, notwithstanding the self-serving

reports recently prepared by the anti-narcotics agencies responsible for execution

123Report by the National Narcotics Directorate (DNE), 4 Feb. 2010. CCM, Vol. II, Annex 66.

See also ibid. (“The program is implemented in compliance with the legislation in force and with
standardized protocols and procedures; therefore, it is carried out exactly the same way regarding
operational parameters, dose and ingredients in the spray mixture, etc. All over the national
territory where illicit crops are detected, including the border zone with EcuadorŽ.).
124
Ibid., Appendix.
125
DIRAN Report, op. cit., para. 2.2.3 (emphasis added). CCM, Vol. II, Annex 67.

65of the aerial spraying programme, Colombia failed to meet even the excessively

low standards set in the EMP for carrying out its aerial spraying operations: data

contemporaneously recorded by the spray planes themselves show that literally

on tens of thousands of flights along or near the Ecuadorian border the pilots

employed by Colombia recklessly and by a wide margin violated all of the

conditions required by the EMP to prevent spray drift, virtually assuring that it

would reach into Ecuador.

2.68 The Parties are in agreement on the factors that, if not adequately

controlled, cause aerial spray to drift, including over long distances. These

factors are, among others, the speed of the aircraft; the altitude at which the spray

is released; the spray application rate (in litres per hectare); the size of the spray

droplets; the time of day; and meteorological conditions, including wind speed

and direction, temperature and humidity. Ecuador agrees with Colombia that:

“spray drift depends essentially on wind speed and direction, as
well as on a number of other atmospheric factors including

temperature, relative humidity and atmospheric stability. It is also
dependent on the altitude at which spraying takes place and the air
speed of the spraying aircraft, as well as the calibration of the

spraying equipment, the de126ty of the spray mix and the initial
size of the spray dropletsŽ .

2.69 The Counter-Memorial asserts that Colombia has taken all of these factors

into account and has adopted strict regulations in regard to each factor.

126CCM, Chap. 7, para. 7.17.

66According to Colombia, there are “strict parametersŽ that set the “minimum and

maximum figuresŽ for each factor affecting “driftŽ, including those regulating

“aircraft speed, heightŽ, “wind speedŽ and “temperatureŽ 12. The Counter-

Memorial also claims that Colombia enforces operational limits for application

rate and droplet size, as well as a prohibition on spraying at night, when

temperature and other climatic conditions are more conducive to spray drift 128.

At paragraph 4.34, Colombia calls the EMP, which contains the operational

parameters for the programme, a “set of rules and procedures that must be

129
followed and observedŽ .

2.70 Paragraph 4.74 of the Counter-Memorial reaffirms the mandatory nature

of the operational parameters set forth in the EMP, and specifically acknowledges

that they are necessary to ensure the protection of people, plants and animals in

Ecuador; Colombia states that it:

“enacted rules and standards governing the aerial spraying

program in order to ensure that standards relating to the protection
of human health and the environment were consistently followed
and applied throughout its territory. When aerial spraying

operations started in the zone near the border with Ecuador, the
same rules were applied with no modifications. These rules were

127
Ibid., Chaps. 7 and 8, paras. 7.32, 8.60.
128
Ibid., Chaps. 4 and 7, paras. 4.62, 7.27; Resolution Nº1054 of 30 September 2003 of the
Ministry for the Environment of Colombia, p. 173. CCM, Vol. II, Annex 50.
129CCM, Chap. 4, para. 4.23 (referencing Environmental Management Plan in Resolution Nº

1054). Resolution Nº 1054 of 30 September 2003 of the Ministry for the Environment of
Colombia. CCM, Vol. II, Annex 50.

67 embodied in the Environmental Management Plan that governs
130
eradication program up to the present timeŽ .

2.71 The Counter-Memorial claims that Colombia has not only promulgated

restrictions on the relevant operational parameters, but that it has strictly enforced

them as well. It claims to have rigorously monitored the spray programme to

assure that all flights are in compliance with the requirements of the EMP in all

131
respects . It claims to have regularly analysed the fight data automatically

generated by the spray planes (the same data subsequently obtained by Ecuador

and submitted with this Reply), and to have prepared quarterly and semi-annual

reports assessing compliance with all operational parameters 132. Although no

such reports are presented to the Court with the Counter-Memorial, Colombia

avers that every such report confirms that the aerial spraying has been conducted

in strict compliance with the requirements of the EMP. It admits to no deviations

from these standards; nor does it concede that any violations have occurred.

Paragraph 4.69 in the Counter-Memorial asserts that “[t]hese parameters are

strictly observed by the personnel involved in spraying operationsŽ 133.

130CCM, Chap. 4, para. 4.74.
131
See infra Chap. 2, paras. 2.75-2.80.
132
Ibid., Chap. 2, paras. 2.81-2.82.
133CCM, Chap. 4, para. 4.69 (emphasis added). See also ibid., Chap. 7, para. 7.17 (“The PECIG’s

Environmental Management Plan has taken into account all these factors and set minimum and
maximum figures for the parameters upon which drift is contingent, with the purpose of reducing
it as much as possible . . . . These parameters are strictly observed by the personnel involved in
spraying operationsŽ.).

682.72 As shown below, these representations by Colombia about its execution of

the aerial spraying programme are impossible to reconcile with the flight data

recorded by the spray planes themselves, which were furnished not only to

Colombia but also to the U. S. Department of State by the private U.S. company

that conducts the spray flights on behalf of Colombia (with financing from the

U.S. government). As indicated previously, it is from the U.S. Department of

State that Ecuador obtained all of the raw data generated by the spray planes

134
during flight . They show unequivocally that Colombia has grossly

misrepresented the facts concerning the conduct of the spray programme. Indeed,

the Counter-Memorial is wrong in all material respects concerning the spray

flights, including especially whether they have complied with the requirements to

prevent spray drift, such as: maximum flight speed; maximum altitude for

dispersion of spray; maximum application rate; minimum droplet size; and

prohibition of night time spraying. Failure to comply with any one of these

requirements increases the potential for spray to reach Ecuador and cause harm

there. But, contrary to the representations in the Counter-Memorial, the evidence

shows that Colombia has failed to comply with all of them … on literally tens of

thousands of spray flights along or near the border with Ecuador.

134Supra Chap. 2, para. 2.7.

692.73 Specifically, the evidence … described in more detail in the following

pages … shows that, in regard to spray flights within 10 kilometres of border with

Ecuador between 2000 and 2008, there were:

▯ At least 75,841 flights when spray was dispersed at speeds higher
than the 165 mile per hour (“mphŽ) limit asserted in Colombia’s
Counter-Memorial.

▯ At least 16,143 flights when spray was dispersed at altitudes
higher than the 50 metre limit set in the EMP.

▯ At least 27,429 flights when the spray application rate was above
the 23.65 litre per hectare limit allowed by the EMP.

▯ At least 24,540 flights at night, contrary to the Counter-
Memorial’s claim that spraying only occurs during the daytime.

A. THE COUNTER -MEMORIAL’SC LAIMSR EGARDING COLOMBIA ’S

C OMPLIANCE W ITHO PERATIONALR EQUIREMENTS TO PREVENT SPRAY D RIFT

2.74 Colombia states in the Counter-Memorial that the “extentŽ of “spray driftŽ

is a “central issueŽ in this . Ecuador agrees: the measures that Colombia

has, or as the case may be, has not, taken to minimize spray drift are fundamental

to assessing Colombia’s international responsibility.

2.75 Colombia gives itself high marks for the prudence with which it claims to

have conducted the aerial spraying. For example, it avers that it has always taken

13CCM, Chap. 7, para. 7.16.

70“every careŽ to “ensure that spraying occurs only on Colombian territoryŽ and

that, as a result, no harm could be caused to Ecuador as a result of spray drift 136.

2.76 Colombia claims that it ensures against spray drift by strict compliance

with the operational requirements boasted of in the Counter-Memorial and set

forth in its EMP. Colombia fastens its sail in this case to the mast of these

requirements. Colombia’s compliance with them, according to the Counter-

Memorial, negates the possibility of spray drift into Ecuador. Colombia even

considers itself legally bound, under Colombia law, to comply with them.

Resolution 1054 of Colombia’s Ministry for the Environment, which approved

the EMP, describes it as having the same legal status as “environmental

regulationsŽ:

“Each and every activity and component of this program should be

set with within the context of current environmental regulations so
that constitutional assumptions can be complied with, which
impose a duty on the State to protect environmental diversity and

integrity, preserve areas of special ecological importance, 137
stimulate education so that these goals may be attainedŽ .

2.77 Colombia has long claimed that the safety of the aerial spraying

programme, including the prevention of drift, depends on strict compliance with

136Ibid., Chap. 7, paras. 7.5, 7.16.

137Resolution Nº 1054 of 30 September 2003 of the Ministry for the Environment of Colombia.
CCM, Vol. II, Annex 50. See also Claudia Rojas Quiñonez, Esq., The Aerial Spray Program and
Violations of Colombia’s Domestic Laws Regarding the Environment and the Rights of

Indigenous Peoples, paras. 15-17, 39, 78, 84, 89-90, and 124 (Jan. 2011) (discussing Colombia’s
legal obligation to comply with the spray programme’s Environmental Management Plan). ER,
Vol. II, Annex 8.

71the operational requirements/regulations. As early as 1993, the Colombian

Health Minister informed the Director of Colombia’s DNE of the critical

importance of complying with the spraying programme’s operational

138
parameters . This view was repeated by the General Manager of Colombia’s

National Institute for Renewable Natural Resources and the Environment, who

emphasized the “importance that must be given to compliance with the specific

and technical parametersŽ 139.

2.78 Colombia’s Agriculture Institute, which is charged with the regulation of

the chemicals in the spray mixture, reiterated the need to comply with the

operational parameters in January 2003, in correspondence with the Director of

Colombia’s DNE. The Director was reminded that “in carrying out these

sprayings all technical measures continue to be applied regarding nozzles

calibration, proper mixture preparationŽ and that “[t]hese sprayings shall be

carried out in accordance with environmental parameters for this type of

sprayingŽ 140.

138Note from the Colombian Health Minister to the Director of the National Narcotics

Directorate, 11 Oct. 1993 (stating that operational parameters “must be keptŽ). CCM, Vol. II,
Annex 36.
139
Resolution No. 001 of 11 February 1994 of National Narcotics Council of Colombia. CCM,
Vol. II, Annex 37.
140Note No. 00500 from the Assistant Manager for Agricultural Protection and Regulation of the

Colombian Agriculture and Livestock Institute to the Director of the National Narcotics
Directorate, 28 Jan. 2003. CCM, Vol. II, Annex 47.

722.79 The highest administrative tribunal in Colombia, the Council of State,

issued an order in 2004 requiring the Colombian authorities to observe strict

compliance with the requirements of the EMP in carrying out the aerial spraying

programme, as well as the resolutions of the Ministry of the Environment

regarding the programme, allowing “not even the slightest deviationŽ:

“the guidelines stated by the environmental authorities should be

followed when illicit crops are being sprayed, and not even the
slightest deviation from these should be permitted, which means
that it is therefore necessary for permanent controls to be
undertaken, with continuous evaluations, of any effects which
141
might begin to appearŽ .

2.80 The Counter-Memorial describes the monitoring programme Colombia

has put in place to assure that all aerial spraying is carried out in strict accordance

with the operational requirements of the EMP, as ordered by the Council of State.

The monitoring programme includes elaborate and sophisticated data collection

techniques for obtaining the data from each and every flight pertaining to the

operational requirements. Paragraph 7.172 of the Counter-Memorial states that:

“All spray aircraft are equipped with a satellite monitoring system

which guarantees the accuracy of the operations and ensures that
the sprayings are carried out on the areas targeted. Wind
conditions are constantly monitored by the aircraft and if they are
not within the parameters allowed, the mission is annulled or

postponed. Each operation is recorded in detail, including the
place, hour, number of hectares sprayed, spraying locations, etc.

141State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca (19 Oct. 2004) (emphasis added). ER, Vol. V, Annex
151.

73 The amount of products used in the operation (glyphosate and
142
adjuvant) is also stated in the operational recordsŽ .

According to Colombia, spray events are further documented in detailed post-

operational reporting:

“Once daily spraying operations are finished, a detailed report of

the day’s operations is prepared on the basis of the computerized
system which records each spraying operation with its respective
route, geo-referenced areas of application and the amount of spray

mix released per minute. This allows verification of the location
of the places where the operations took place and quantification of
the hectares sprayed. A record is signed by the Base Commander
143
and the personnel involved in the operationŽ .

2.81 The Counter-Memorial describes how the data collected by these means

are reported, reviewed and analyzed. It says, for example, at paragraph 4.26 that

the “Ministry for the Environment oversees the implementation of the EMP and

verifies compliance with the guidelines and duties foreseen in itŽ, and that “[t]wo

reports per year are submitted to the Ministry, which may issue rulings on the

activities carried out by the agencies involved in the implementation of the [aerial

144
spraying] programmeŽ . Further, according to the Counter-Memorial, the data

regarding the spray programme are reviewed by “an external technical audit,

contracted yearly through public tender with resources provided by the National

Narcotics CouncilŽ that “submits quarterly reports of its evaluations and

142CCM, Chap. 7, para. 7.172.

143Ibid., Chap. 4, para. 4.64.
144
Ibid., Chap. 4, para. 4.26.

74assessments, with recommendations for any outstanding corrective actions to be

145
takenŽ .

2.82 Notably, Colombia did not provide the Court with any of the data

regarding the execution of the aerial spray programme that the Counter-Memorial

says has been recorded. Nor did Colombia submit to the Court any of the

evaluative reports or audits that it claims the data have been subjected to (i.e., the

twice-yearly reports to the Ministry of the Environment, or the quarterly reports

of the technical auditors contracted by the National Narcotics Council). These

are conspicuous omissions. Colombia, in essence, asks the Court to take it on

faith that the aerial spraying programme has been consistently carried out along

the border with Ecuador since 2000 in strict compliance with the operational

requirements of the EMP, and that the data collected about the spray flights and

the evaluative reports all confirm this. Where are these data and reports? The

Court’s case law has made clear that a State’s failure to present records in its

possession to substantiate factual claims, particularly when they relate to alleged

compliance with legal requirements, warrants a cautious approach to these claims

since “[a] public authority is generally able to demonstrate that it has followed the

appropriate procedures and applied the guarantees required by law … if such was

145Ibid., Chap. 4, paras. 4.28-4.29. See also ibid., para. 4.74 (“the program is overseen by a
permanent external auditŽ).

75the case … by producing documentary evidence of the actions that were carried

outŽ14.

B. E CUADOR ’S RECEIPT OFD ATA FROM THE G OVERNMENT OF THE U NITED

S TATES REGARDING C OLOMBIA ’SA ERIAL SPRAYING P ROGRAMME

2.83 Just as Colombia failed to provide the Court with the data recorded by its

spray planes, or with its quarterly and semi-annual reports on compliance with the

operational requirements of the EMP, it also refused to provide the information

147
and documents to Ecuador, despite repeated requests over several years .

Colombia’s persistent refusals led Ecuador to look elsewhere for the data on the

spray flights. Ecuador turned to the only other known source for these data: the

U.S. Department of State. It is public knowledge that the United States provides

financial and operational support for Colombia’s aerial spraying programme,

including the purchase of chemicals and aircraft, and by contracting with

DynCorp International LLC to provide the pilots and ground personnel to carry

out the spray missions and service the equipment8. As part of its cooperation

with Colombia, the State Department receives the data recorded by the spray

planes. A State Department Report from 2002 explains:

146Case Concerning Ahmadou Sadio Diallo (Republic of Guinea v. Democratic Republic of the
Congo), Judgment, I.C.J. Reports 2010, p. 24, para. 65.
147
See e.g., EM, Chap. 3, paras. 3.1-3.3, 3.9, 3.17, 3.21, 3.28-3.30.
148
See CCM, Chap. 1, para. 1.35, 4.63; DIRAN Report, op. cit., p. 301. CCM, Vol. II, Annex 67.

76 “Onboard computer and digital global positioning systems

(D/GPS)-driven equipment (SATLOC and Del Norte)
automatically record each aircraft’s actual flight parameters,
including differential-GPS track, airspeed, altitude (mean sea

level), application rate, and precise geographic location (longitude
and latitude coordinates) at the time of aspersionŽ 14.

2.84 In a formal request under the U.S. Freedom of Information Act 150made on

3 April 2009, Ecuador sought from the U.S. Department of State “records of

aircraft flight parameters recorded during missions to eradicate illicit coca in

ColombiaŽ for “aerial spraying operations conducted in the Putumayo and Nariño

Departments of Colombia within 20 kilometres of the international border with

EcuadorŽ 151. In a response dated 13 November 2009, the Department of State

provided 11 documents from its International Narcotics and Law Enforcement

Affairs Bureau (a set of ten maps depicting the location of spray events between

2000 and 2008, and a set of screen shots from the data recording system), and a

152
computer disk containing “the detailed underlying data to the documentsŽ . In

153
response to a follow-up request , on 12 March 2010 the U.S. Department of

149
Chemicals Used, op. cit., p. 3. EM, Vol. III, Annex 144.
150United States, Freedom of Information Act, 55 U.S.C. § 552.

151Letter from Rebecca L. Puskas, Counsel to Government of Ecuador to United States
Department of State Office of Information Programs and Services (3 Apr. 2009). ER, Vol. IV,

Annex 113.
152Letter from Margaret P. Grafeld, Director, Office of Information Programs and Services,

United States Department of State to Rebecca L. Puskas, Counsel to Government of Ecuador (13
Nov. 2009). ER, Vol. IV, Annex 114. A copy of the data CD obtained by Ecuador from the U.S.
Department of State has been deposited with the Registry.
153
Letter from Rebecca L. Puskas, Counsel to Government of Ecuador to A. Harold (Hal) Eisner,
United States Department of State Office of Information Programs and Services (19 Feb. 2010).
ER, Vol. IV, Annex 115.

77State provided a description of each parameter reflected in the flight data and the

154
units associated with the data .

2.85 The data that Ecuador received from the U.S. Department of State provide

information about 247,977 spray events within 20 kilometres of Ecuador that

were flown between 2000 and 2008, 114,525 of which occurred within 10

155
kilometres of Ecuador . During this time, Colombia’s spray planes deposited a

total of 326,658 gallons (1,236,535 litres) of the toxic herbicide spray mixture

within 10 kilometres of Ecuador’s border 156.

2.86 In light of the Counter-Memorial’s failure to present any information

about the location and conditions of aerial spraying near Ecuador’s border, it falls

to Ecuador to bring this evidence to the Court’s attention. As discussed below,

the data make a mockery of Colombia’s assertions about the prudence with which

it allegedly conducts the aerial spraying programme, and the supposed “strict

complianceŽ with the operational requirements of the EMP. As recorded by the

154
Fax from A. Harold Eisner, Office of Information Programs and Services, United States
Department of State to Rebecca L. Puskas, Counsel to Government of Ecuador (12 Mar. 2010).
ER, Vol. IV, Annex 116.

155R. John Hansman, Ph.D. & Carlos F. Mena, Ph.D., Analysis of Aerial Eradication Spray
Events in the Vicinity of the Border Between Colombia and Ecuador from 2000 to 2008, p. 11
(Jan. 2011) (hereinafter “Hansman & Mena ReportŽ). ER, Vol. II, Annex 1. Ecuador received

information regarding flight paths located within 20 kilometres of the international border but has
focused its analysis on the flight paths within 10 kilometres of the frontier. Ibid. As discussed in
the Hansman & Mena Report, the records represent aircraft ground tracks when chemicals were
being sprayed. Ibid., p. 6. Ecuador has not obtained information regarding the flight paths of
Colombia’s spray planes when the chemicals were not being sprayed.

156Hansman & Mena Report, op. cit., p. 11. ER, Vol. II, Annex 1.

78spray planes, the data thoroughly contradict the representations about the aerial

spraying programme provided in the Counter-Memorial, especially in relation to

Colombia’s alleged compliance with the operational requirements in regard to

flight speed, altitude of spray release, application rate, droplet size, time of day,

and other pertinent factors that affect spray drift, including type of spray planes

used, competence of pilots, and avoidance of no-spray zones and buffer zones

intended to protect Ecuador and sensitive areas. In sum, what the data show are

pervasive violations of every requirement designed to prevent spray drift.

C. AIRCRAFT SPEED AND H EIGHT OFS PRAY RELEASE

2.87 Among the most important factors that influence spray drift are the speed

the aircraft is travelling and the height at which the spray is released. The Parties

agree that the faster a plane is travelling, and the higher a spray mixture is

released, the more likely it is to drift long distances.

1. Speed

2.88 Ecuador and Colombia agree that aircraft speed is a principal factor that

determines whether there will be long-distance drift. In that regard, Colombia

79acknowledges in paragraph 4.68 of the Counter-Memorial that “drift dependsŽ on

157
the “air speed of the spraying aircraftŽ .

2.89 Colombia further asserts in the Counter-Memorial that to prevent long-

range drift, its planes are forbidden from spraying while travelling in excess of

165 miles per hour (265 km/hr). For instance, Colombia states at paragraph 7.32

that its spray planes fly at a “maximum operation speed of 165 miles per hourŽ 158.

2.90 In its submission to the Inter-American Commission on Human Rights

(IACHR), Colombia claimed an even more restrictive speed limit, informing the

Commission that its aircraft are barred from flying faster than 140 mph (225

159
km/hr) .

2.91 Colombia’s representations … that its spray planes never fly faster than

165 mph (as it asserts in the Counter-Memorial), or 140 mph (as it claimed to the

IACHR) … are false. In fact, Colombia’s aircraft routinely exceed these speed

limits by huge margins. This is confirmed, for example, in the testimony of a

pilot with extensive experience flying spray missions for Colombia, who testified

157
CCM, Chap. 4, para. 4.68. See also ibid., Chap. 7, para. 7.17.
158CCM, Chap. 7, para. 7.32.

159Diplomatic Note No. DDH 58003 from the Colombian Foreign Ministry to the Executive
Secretary of the Inter-American Commission on Human Rights, 18 Sept. 2005, p. 26. ER, Vol. V,

Annex 154.

80that the aircraft travel “hundreds of miles per hourŽ 160. And it is corroborated by

reports authored by the U.S. Department of State that evaluate the aerial spraying

programme, which repeatedly criticize the “pilotsŽ for “flying too fastŽ on “spray

161 162
passesŽ and “faster than prescribed airspeedsŽ .

2.92 The State Department’s observation that the pilots fly “too fastŽ is well

warranted. Colombia’s aircraft routinely spray near the border with Ecuador

while flying much faster than 165 mph (the limit asserted in the Counter-

Memorial), let alone 140 mph (the limit that Colombia represented to the

IACHR).

2.93 In fact, according to the spray operation data, Colombia’s planes sprayed

toxic herbicides within 10 kilometres of the Ecuadorian border while travelling

163
faster than 165 mph on at least 75,841 occasions between 2000 and 2008 . That

164
is over 69 percent of all spray flights in the region . The pervasive violations

of the speed limit near the border are illustrated in Figure 2.4, which depicts

160
United States District Court of the District of Colombia, Arias, et al. v. Dyncorp, et al.,
Quinteros, et al. v. Dyncorp, et al., Declaration of Redacted Witness (2 June 2010). ER, Vol. IV,
Annex 117.

161Memorandum from Tim Doty, COR, INL/RM/AS to Dyncorp, PSD Manager, p. 3 (28 May
1997). ER, Vol. III, Annex 37.

162United States Department of State, Evaluation Summary Technical Operations (Undated). ER,
Vol. III, Annex 50.

163Hansman & Mena Report, op. cit., p. 20. ER, Vol. II, Annex 1.

164Ibid.

81violations along Ecuador’s Sucumbíos Province. Indeed, in 2002 alone,

Colombia’s planes sprayed while travelling faster than 165 mph no fewer than

165 166
19,594 times . In 2006, they did so 12,855 times .

2.94 Colombia’s violations of the 140 mph speed limit represented to the

IACHR were, of course, even worse. In fact, 108,563 flights … 98 percent of all

flights within 10 kilometres of Ecuador’s border between 2000 and 2008 …

167
exceeded 140 mph . When Colombia made that claim in September 2005, it

had already violated the limit over 75,000 times 168.

2.95 Nor were Colombia’s violations of the speed limit trivial. To the contrary,

they were often far above it. The Counter-Memorial describes 333 kilometres per

hour … equivalent to 207 miles per hour … as the “worst case scenarioŽ 169. In

other words, even though the aircraft were required to fly slower than the speed

limit (165 or 140 mph), Colombia claims that in no circumstances would it be

possible for them to fly faster than 207 mph. Assuming for a moment that

Colombia’s “worst case scenarioŽ is accurate, this is over 40 mph faster than the

165Ibid., Appendix 3, p. 14.
166
Ibid.
167
Hansman & Mena Report, op. cit., p. 20. ER, Vol. II, Annex 1.
168Ibid., Appendix 3, p. 27.

169CCM, Chap. 7, para. 7.25.

82speed limit asserted in the Counter-Memorial and over 65 mph faster than the one

represented to IACHR.

2.96 But the Counter-Memorial is wrong. In fact, the “worstŽ flying speed

within 10 kilometres of Ecuador’s border was 246.9 mph (or 397.3 km/hr), which

170
occurred in 2001 . That is 82 mph faster than the 165 mph speed limit claimed

in the Counter-Memorial and 107 mph faster than the one represented to the

IACHR. Flights in other years were not much slower. In 2000, planes sprayed

near the Ecuadorian border while travelling up to 237 mph 171. In 2002, they flew

as fast as 244 mph, and in 2004 they reached 231 mph 172. In 2005 and 2006,

planes flew up to 231 mph and 220 mph, respectively 173. Indeed, there were at

least 11,113 spray flights … 10 percent of the total … that were faster than what the

174
Counter-Memorial describes as the “worst case scenarioŽ . In 2002 alone, the

putative worst case was exceeded 5,992 times (16 percent of all flights within 10

175
kilometres of the border that year) . Figure 2.4 depicts spray lines flown faster

than the Counter-Memorial’s “worst caseŽ near Ecuador’s Sucumbíos Province.

170Hansman & Mena Report, op. cit., Appendix 3, p. 17. ER, Vol. II, Annex 1.

171Ibid.

172Ibid.

173Ibid. In 2003, Colombia’s planes reached 197 mph. In 2007 and 2008, they flew up to 213
and 185 mph, respectively. Ibid.

174Ibid., p. 20.
175
Hansman & Mena Report, op. cit., Appendix 3, p. 15. ER, Vol. II, Annex 1.

83 0°30'0"N

km

Figure 2.4
River

Putumayo

! Palma Seca

River

San Miguel
76°30'0"W !Chone 2Chone 1 76°30'0"W
!
!

Playeratal 0 5 10 15 20 25
!

±
Puertoo

Corazón Orense
Puert! MestanzaAgosto
Puerto EscondidoLojana
! !
C O L O M P u t u m a y o
!
! ! S u c u m b í o s
Monterrey
! E C U A D O R
Dios Peña
! Santa La Charapa
Marianita
! !

San Miguel

Farfán
General
!
La Condor
! !
0 - 114-615> 20707 !

10 de Agosto
Sucumbíos ProvSpeed (mph)- 2008) !

! San SFarannFcrisacnoci2sco 1

77°0'0"W 77°0'0"W
Salinas Virgen del Cisne

Flight Speed of Spray Events Within 10 Kilometres of Ecuador’s

Peru
River

San Miguel Colombia
International boundary
Protected areas international boundary

Ecuador

Legend

N a r i ñ o
Cofán Reserve

0°30'0"N2.97 Such violations of the speed limit have a dramatic impact on spray drift,

as Colombia itself concedes 176. The Hansman & Mena Report gives the technical

reasons for this: “[i]f the spray aircraft airspeed is too high, the droplets from the

spray nozzle will explode into much smaller droplets due to aerodynamic forces

177
as they hit the high relative windŽ . This principle, depicted graphically in

Figure 2.5, has also been recognized by regulatory authorities, including

Colombia’s own Agriculture Institute, which explained in a 1999 technical report

that “emission of drops of small and medium size, coming from the spraying

nozzlesŽ which is “influenced by a high speed of operation and turbulence, cause

larger breakage of dropsŽ 178. Likewise, Australia’s Operating Principles in

Relation to Spray Drift Risk recognize that “high airspeeds can cause excessive

fragmentation of droplets delivered by the nozzle system when the droplets are

179
impacted by fast moving air flowing relative to the wing boomŽ . This will

180
“shatterŽ the “dropletsŽ, making them “more drift proneŽ . The U.S. EPA

likewise explains that “[l]arge droplets released into the turbulence created by an

aircraft travelling in excess of 120 mph tend to break into smaller more driftable

176
See CCM, Chaps. 4 and 7, paras. 4.61, 4.68, 7.17-7.18, 7.32; CCM, Appendix, p. 522-523;
CCM, Annex 131-B.
177
Hansman & Mena Report, op. cit., p. 20, n. 7. ER, Vol. II, Annex 1; see also Durham K.
Giles, Ph.D., Spray Drift Modeling of Conditions of Application for Coca Crops in Colombia, pp.
6, 20 (Jan. 2011) (hereinafter “Giles ReportŽ). ER, Vol. II, Annex 2.

178Republic of Colombia, Ministry of Environment, Division of Environmental Licenses, Order
No. 599, p. 13 (23 Dec. 1999). ER, Vol. V, Annex 132.

179 Australian Pesticides and Veterinary Medicines Authority (APVMA), AVPM Operating
Principles in Relation to Spray Drift Risk, p. 20 (15 July 2008). ER, Vol. III, Annex 22.

180Ibid., p. 9.

84dropletsŽ due to “shearing effectsŽ caused by high airspeeds 181. Over 110,000

spray flights were flown at speeds faster than the speed the U.S. EPA said could

cause “driftable dropletsŽ 182.

183
Figure 2.5. Breakup of Spray Droplets as They Encounter Wind Turbulence

181EPA 2002 Analysis, op. cit., p. 34. ER, Vol. III, Annex 45.

182Hansman & Mena Report, op. cit., Appendix 3, p. 16. ER, Vol. II, Annex 1.

183Giles Report, op. cit., p. 6. ER, Vol. II, Annex 2.

85 2. Height

2.98 Flying too fast is not the only factor that Ecuador and Colombia concur

increases spray drift. The Parties also agree that a spray mixture is prone to drift

longer distances if it is released at too high an altitude. As Colombia states at

paragraph 4.68 of the Counter-Memorial, “[s]pray driftŽ is “dependent on the

184
altitude at which spraying takes placeŽ . However, just as Colombia

misrepresents its compliance with restrictions on aircraft speed, the Counter-

Memorial also falsely claims that Colombia has complied with the EMP’s

requirements regarding the altitude from which the spray is released.

2.99 On paper at least, Colombia has imposed limits regarding the height from

which the spray mixture may be released, in order to prevent it from drifting. For

example, Colombia informed Ecuador in April 2004, that is, over four years into

the programme, that the “[h]ighest release heightŽ is “25 meters in compliance

with technical parametersŽ 185. Colombia said the same thing in September 2005

when it represented to the Inter-American Commission on Human Rights that the

186
“flight altitudeŽ for its “spraying operationsŽ is “not above 25 metresŽ . By the

184CCM, Chap. 4, para. 4.88. See also ibid., Chap. 7, para. 7.17.

185Note No. SARE -142 from the Director of the National Narcotics Directorate of Colombia to
the President of the Scientific and Technical Commission of Ecuador, 14 Apr. 2004. CCM, Vol.
II, Annex 13.

186Diplomatic Note No. DDH 58003 from the Colombia Foreign Ministry to the Executive
Secretary of the Inter-American Commission on Human Rights, p. 52, 18 Sep. 2005. CCM, Vol.

II, Annex 19.

86time Colombia made that representation, spraying near the Ecuadorian border had

187
been ongoing for over five-and-a-half years .

2.100 Colombia appears to have recognized that it was on shaky ground in

claiming that it complies with the height limitation. Thus, notwithstanding its

representations to Ecuador and the IACHR that its spray planes were forbidden

from spraying above 25 metres, Colombia’s current EMP doubles the height limit

to 50 metres so that it can more comfortably claim that the standard is not

exceeded. 188 In the Counter-Memorial, Colombia states that its aerial spraying

“usuallyŽ takes place at a height of 30 metres 189. No data are presented, however,

in support of this representation, or any of its other claims about the altitude at

which it releases the herbicide.

2.101 Yet again, Colombia’s representations are contradicted by the evidence.

The data collected by the spray planes demonstrate that Colombia routinely

exceeds the allowable altitude for releasing the chemical spray, regardless of

187 Moreover, at the time Colombia made these representations, it had an Environmental
Management Plan in place … since September 30, 2003 … which provided that the maximum
application height was 50 metres. Resolution Nº 1054 of 30 September 2003 of the Ministry for

the Environment of Colombia, p. 173. CCM, Vol. II, Annex 50. Thus, Colombia was allowing
its spray planes to operate twice as high as it admitted to Ecuador and the IACHR.
188
Resolution No. 1054 of 30 September 2003 of the Ministry of Environment of Colombia.
CCM, Vol. II, Annex 50, p. 173.
189
CCM, Chap. 4, para. 4.62 (“The Environmental Management Plan foresees a maximum flight
altitude of 50 meters when spraying, subject to geographical features or obstacles so as to avoid
risks to the pilotsŽ.). See also CCM, Chap. 7, para. 7.32 (“aircraft fly at low altitudes, usually 30
metersŽ).

87whether the permitted ceiling is 25 metres, as Colombia represented to Ecuador

and the IACHR, or 50 metres, as Colombia claims in the Counter-Memorial. As

the U.S. Department of State concluded in one of its evaluations, Colombia’s

“pilotsŽ are “flying . . . too high on spray passesŽ 190. The USDA came to the

same conclusion after conducting a field verification mission in 2001, reporting

191
“decreased efficiencyŽ due to “sprayingŽ at “too high an altitudeŽ .

2.102 The U.S. Departments of State and Agriculture were right: Colombia’s

planes do fly “too highŽ and at “too high an altitudeŽ. Indeed, they frequently

spray at altitudes far above the prescribed limit. In fact, nearly all of Colombia’s

spraying near the Ecuadorian border … 96 percent … has been done in violation of

the 25 metre height restriction it once told Ecuador and the IACHR was the

192 193
allowable limit . The total number of flights in excess of 25 metres is 89,124 .

In 2002 alone, Colombia released the chemical spray at altitudes higher than 25

194
metres 37,293 times .

190Memorandum from Tim Doty, COR, INL/RM/AS to Dyncorp, PSD Manager, p. 3 (28 May
1997). ER, Vol. III, Annex 37.

191U.S. Department of Agriculture, Agricultural Research Service, Colombia Coca Verification
Mission April-May 2001, p. 2 (7 July 2001). ER, Vol. III, Annex 41.

192Hansman & Mena Report, op. cit., p. 19. ER, Vol. II, Annex 1.

193Ibid.
194
Ibid., Appendix 3, p. 5.

882.103 Nor were these violations of the 25 metre limit trivial. In fact, Colombia

released the chemical spray from a height over 50 metres, that is, double the 25

metre limit, at least 16,143 times between 2000 and 2008 195. This represents 17

percent of all spraying near the Ecuadorian border 196. The altitude violations in

197
Ecuador’s Sucumbíos Province are depicted in Figure 2.6 .

2.104 As noted above, the Counter-Memorial acknowledges that releasing the

spray mixture at an excessive height increases drift 198. The Giles Report

explains:

“A critical parameter in the potential for spray drift is the aircraft
altitude or height of the application above the underlying canopy.

When spray droplets are released, they must travel from the point
of release downward to the intended target. Any cross wind that

affects the droplets during their downward trajectory will displace
them downwind. As the height of release increases, the travel time

195Hansman & Mena Report, op. cit., p. 19. ER, Vol. II, Annex 1. For example, in 2000,
Colombia sprayed the chemical herbicide at heights that reached 196 metres. Hansman & Mena
Report, op. cit., Appendix 3, p. 8. ER, Vol. II, Annex 1. That is more than 7 times higher than the

25 metre height restriction that Colombia claimed to Ecuador and the IACHR, and more than 3
times the 50 metre limit claimed in the Counter-Memorial. There were many spray missions that
year that flew far in excess of the height restriction. For example, at least nine other flights
exceeded 170 metres in altitude. Ibid. In 2006, more than 10 flights were higher than 120 metres.

Ibid. 2007 was even worse: Colombia sprayed as high as 170 metres, and at least 10 flights were
over 125 metres. Ibid.
196
Ibid., p. 19.
197Hansman & Mena Report, op. cit., pp. 7-10. ER, Vol. II, Annex 1.

198CCM, Chaps. 4 and 7, paras. 4.68, 7.17, 7.32, Appendix, paras. 22-25; A.J. Hewitt et al.,
“Spray Droplet Size, Drift Potential, and Risks to Nontarget Organisms from Aerially Applied

Glyphosate for Coca Control in ColombiaŽ, in Journal of Toxicology and Environmental Health,
Part A, 72:930-936 (2009) (hereinafter “Hewitt et al., 2009Ž). CCM, Vol. II, Annex 131-B.

89 0°30'0"N

km

Figure 2.6
River

Putumayo

! Palma Seca

River

San Miguel
76°30'0"W !Chone 2Chone 1 76°30'0"W
!
!

Playeratal 0 5 10 15 20 25
!

±
Puertoo

Corazón Orense
Puert! MestanzaAgosto
Puerto EscondidoLojana
! !
C O L O M P u t u m a y o
!
! ! S u c u m b í o s
Monterrey
! E C U A D O R
Dios Peña
! Santa La Charapa
Marianita
!

San Miguel

Farfán
General
!
La Condor
! !
0 - 55 - 5>050 !

10 de Agosto
Sucumbíos Province (2000 - 2008) !
Altitude (meters)

! San SFarannFcrisacnoci2sco 1

77°0'0"W 77°0'0"W
Salinas Virgen del Cisne

Altitude of Spray Events Within 10 Kilometres of Ecuador’s

Peru
River

San Miguel Colombia
International boundary
Protected areas international boundary

Ecuador

Legend

N a r i ñ o
Cofán Reserve

0°30'0"N of the droplets increases correspondingly, allowing a greater
horizontal displacement of the droplets to occurŽ 19.

2.105 This is understood by regulatory authorities the world over. For example,

Australia’s Operating Principles in Relation to Spray Drift Risk observe that

“[s]pray release heightŽ is one of the “major factors affecting spray drift risk: the

higher the release height, the greater the potential for off target driftŽ 20.

2.106 In fact, few if any aerial spraying programmes have ever been conducted

at the heights flown by Colombia’s spray planes. Typically, aerial spraying of

pesticides for agricultural purposes is performed only a few metres above crop

level, to avoid drift away from the target site 201. In a 2004 study commissioned

by Colombia (which is not cited in the Counter-Memorial), Colombia’s own

technical consultants acknowledged after reviewing the available literature on

spray drift, that “there is no information regarding aerial spraying of illicit crops

from more than 20 meters of altitudeŽ; therefore, “the corresponding technical

parameters cannot be used as applicable references for the spraying done in

199
Giles Report, op. cit., p. 16. ER, Vol. II, Annex 2; see also Hansman & Mena Report, op. cit.,
p. 18, n. 6 (“The altitude above ground level impacts spray drift. The higher the initial spray
application, the more time the spray has to drift during its descent to the groundŽ.). ER, Vol. II,
Annex 1

200 Australian Pesticides and Veterinary Medicines Authority (APVMA), AVPM Operating
Principles in Relation to Spray Drift Risk, p. 24 (15 July 2008). ER, Vol. III, Annex 22. Ibid., p.

9 (“higher release heights add to spray drift riskŽ).
201See infra Chap. 4, para. 4.108; Giles Report, op. cit., p. 16. ER, Vol. II, Annex 2.

90ColombiaŽ 202. Accordingly, Colombia has no experiential basis for concluding

that its height limit of 25 metres, let alone of 50 metres, is sufficient to prevent

spray drift.

2.107 The risks of extensive spray drift caused by releasing the spray mixture at

higher-than-allowed altitudes are, of course, multiplied when the spray is also

released at higher-than-allowed flight speeds 203. The data generated by the spray

planes and obtained from the U.S. Department of State show that Colombia’s

violation of both altitude and speed limits simultaneously has been a common

occurrence. More than 92 percent of all recorded flights between 2000 and 2008

… 85,364 separate spray events within 10 kilometres of Ecuador’s border …

exceeded the 140 mph speed limit and the 25 metre altitude restrictions

simultaneously 20. The more lenient restrictions of 165 mph for speed and 50

metres for altitude were also frequently breached in tandem: 12,155 times to be

exact, which represents 13 percent of all flights 205. Colombia’s exceedances of

the parameters for both height and speed, and the corresponding implications for

202 Las Palmas Ltda., Technical Department, Glyphosate (10,4 l/ha) and Three Different

Adjuvants, For Illicit Coca Crop (Erythoxylum spp.) Control, Agronomic Efficacy Testing of
Doses of Glyphosate in Illicit Crops: Final Report, p. 12 (July 2004) (hereinafter “Las Palmas
ReportŽ). ER, Vol. III, Annex 15.
203
Giles Report, op. cit., pp. 11-15. ER, Vol. II, Annex 2.
204
Hansman & Mena Report, op. cit., p. 21. ER, Vol. II, Annex 1.
205Ibid. These values represent the number of flights with recorded data for both parameters

(speed and altitude). Ibid.

91spray drift, in comparison to typical aerial spraying operations, are shown in the

schematic drawing found at Figure 2.7.

3. Reasons for Exceeding the Speed and Height Requirements

(a) Colombia’s Spray Planes Fly High and Fast To Evade Hostile Gunfire
From the Ground

2.108 In the Memorial, Ecuador pointed out that the pilots responsible for flying

Colombia’s spray planes have an incentive to exceed the required height and

speed limits. The reason is simple: narco-traffickers protecting their illicit crops

206
attempt to shoot them down . Moreover, variable topography and towering

rainforest trees present physical hazards for Colombia’s spray pilots 20. It is self-

evident that these failures would cause the pilots to fly higher and faster than they

otherwise would, in violation of the spray programme’s mandatory operational

208
parameters .

2.109 The Counter-Memorial, however, denies that the spray planes are

subjected to hostile gunfire, and asserts that Colombia’s pilots have no incentive

206
EM, Chap. 5, para. 5.95.
207
Ibid., Chap. 5, paras. 5.93-5.94.
208
There are other reasons that would encourage the pilots to exceed these restrictions as well.
For example, when flying at night, without the benefit of being able to see the ground, the aircraft
are likely to fly high. Likewise, the height of the surrounding tree canopy can at times exceed 50
or even 65 metres. Henrik Balslev, Ph.D., The Vulnerability of the Ecuador-Colombia Border
Region to Ecological Harm, pp. 7, 18, 25 (Jan. 2011) (hereinafter “Balslev ReportŽ). ER, Vol. II,
Annex 4.

92 >50 Meters

Figure 2.7

>165 mph (266 km/hr)

Actual Caselshtbfve5r0man1rs5 mph

50 Meters

165 mph (266 km/hr)

CoiloCboia’trepreseortaltion

25 Meters

140 mph (225 km/hr)

CotlomIioe’-nmrupiraneCtomtmnis-
Effects of Altitude and Flight Speed on Spray Drift

5 Meters

120 mph (193 km/hr)

Typical Agricultural Sprayingto fly too high or too fast. However, that they do both is no longer disputable,

given the flight data obtained from the U.S. Department of State. The only

question is why. At paragraph 4.61, Colombia states that prior to spray missions

there is “an assessment of whether the minimum requisite securityŽ is “present in

the areas to be sprayedŽ and that “[a]ny alteration to these conditions entails the

immediate cancellation of the spraying missionŽ 209. Similarly, at paragraph 4.70,

Colombia asserts there is no incentive to fly high or fast because “no spraying

operations are authorized on plots that are assessed as being high risk until

military operations to guarantee appropriate security conditions are carried

210
outŽ . In other words, according to the Counter-Memorial, the planes do not

spray in areas where they are vulnerable to hostile gunfire and thus have no

incentive to exceed the height and speed limits touted in the Counter-Memorial.

2.110 Here, again, the evidence negates Colombia’s assertions. For example,

the shooting of spray planes has been frequently reported in the press, in articles

with titles like Anti-Drug Plane Shot Down, U.S. Says 21. The danger faced by

209
CCM, Chap. 4, para. 4.61.
210
Ibid., Chap. 4, para. 4.70. See also ibid., Chap. 7, para. 7.25 (“no spraying operations are
authorized on plots that are assessed as being high risk until military operations to guarantee
appropriate security conditions are carried out, and spraying missions are cancelled if the situation
changesŽ).

211See, e.g., “Anti-drug plane shot down, U.S. sHICAGOCTRIBUNE (Chicago, 23 Sept. 2003)
(quoting a Dyncorp spokesman as saying that an “aircraft was struck by hostile ground fireŽ). ER,

Vol. IV, Annex 77; Tod Robberson, “2 U.S. Pilots Die on Colombian Anti-Narcotics MissionŽ,
D ALLAS M ORNING NEWS (Dallas, 29 July 1998) (“Colombian and U.S. military sources said . . .
leftist guerrillas . . . frequently try to shoot down government aircraft on illicit-crop eradication
missionsŽ. “Their work has become so dangerous in recent months … due mainly to anti-aircraft

93Colombia’s spray pilots was also conveyed in an article in Soldier of Fortune

212
magazine entitled Pray and Spray .

2.111 Colombia’s claim that the planes do not spray areas where there is a risk

of hostile gunfire is further refuted by the testimony of a spray pilot who spent

years working in the aerial spraying programme. The pilot testified that he and

his colleagues are frequently subjected to armed attack, both from gunfire and

from improvised explosive devices:

“narco-terrorist and criminal groups oppose and attempt to disrupt

the drug-spraying missions that I and others fly in Colombia.
These opposition and disruption efforts include such conduct as
shooting at the low-flying aircraft with high calibre firearms from

the ground, rigging above-ground wires to snag and damage the
aircraft, and placing tall poles or trees (with limbs removed) that

cannot easily be seen from the fast-moving aircraft to create
obstacles. On several occasions, our aircraft have been rocked by

fire from guerrillas and other gunmen protecting illicit-crop fields and drug laboratories … that
earlier this year, they began conducting eradication missions at night to make their aircraft harder
to targetŽ.). ER, Vol. IV, Annex 53.

212Steve Salisbury, “Pray and Spray: SOF With Coke-Bustin’ BroncosŽ, OLDIER OF FORTUNE , p.
61 (July 1998) (describing the shooting down of spray planes and death and injuries caused to

pilots). ER, Vol. IV, Annex 52. The DNE, which is responsible for the spray program, was also
warned that spraying under these conditions leads to an increased risk of off-target drift. In a
letter sent to the DNE, Colombia’s Minister of Environment stated that “the greatest possibility of
spraying areas that are not the object of the program are related to errors on the spraying process,
which depend on conditions of public order and the difficulty of the operationŽ. Among other
risks, the Minister of Environment noted “deviation from the flight path due to attack or risk of an

accidentŽ and “invasion of buffer zones due to human errorŽ. Letter from Juan Mayr Maldonado,
Minister of the Environment, Republic of Colombia, to Gabriel Merchan Benevides, Director
General of the National Drug Directorate, Republic of Colombia (Undated). ER, Vol. V, Annex
140.

94 explosions from remote-controlled Improvised Explosive Devices
(‘IEDs’) installed in the tops of tall treesŽ 21.

2.112 Continuing, the pilot testified regarding the deaths and injuries that these

hazards have caused:

“I have personally witnessed all of these dangers. I have had

aircraft I was piloting seriously damaged by weapons fire to the
point where I had to abort my spraying mission and return to base.
I have seen obstacles intentionally placed as hazards to low-flying

spray planes. I have known fellow pilots who were killed during
spraying missions in plane crashes caused by these types of
hazardsŽ 214.

2.113 This testimony is confirmed by contemporaneous State Department

reports that record the extensive time and resources required to make bullet-

ridden aircraft serviceable again. For example, in March 2003, the State

Department reported that aircraft participating in the aerial spraying programme

experienced “16 incidents of hostile fire resulting in 47 individual small arms

hitsŽ215. These “battle damage incidentsŽ … to use the State Department’s words …

required the expenditure of “[a]pproximately 2,000 maintenance man-hoursŽ to

216
make the necessary repairs . The following month, damage from hostile fire

was even worse. “Colombia’s eight OV-10 recorded 1,989 depot hours (83 days)

213
United States District Court of the District of Colombia, Arias, et al. v. Dyncorp, et al.,
Quinteros, et al. v. Dyncorp, et al., Declaration of Redacted Witness, para. 6 (2 June 2010). ER,
Vol. IV, Annex 117.
214
Ibid.
215
Memorandum from Lowell Neese, Senior Aviation Advisor, DoS/INL/A (Colombia), to Paul
O’Sullivan, COR, DoS/INL/A, p. 6 (21 Apr. 2003). ER, Vol. III, Annex 46.
216
Ibid.

95for battle damage reportsŽ, equalling “almost 3,000 maintenance man-hoursŽ 217.

These statistics prompted the State Department to complain that the “3000+

218
maintenance man hours detracted from aircraft availabilityŽ .

2.114 Beyond the incentive to fly higher and faster that is provided by the risk of

attack and other hazards from the ground, the variable terrain in the border region

also compels pilots to operate spray missions at greater altitudes. The rainforest

canopy, which itself may reach up to 30 to 35 metres in height, and towering

emergent trees which reach higher still, present significant physical obstacles 219.

The DNE itself has indicated that it is “impossibleŽ to follow fixed altitude

parameters given the variable terrain and other factors:

“Regarding flight height. As is well known, illicit crops are located
in different landscapes, varying topographical conditions and
many plots present obstacles, in addition to the dangers of drug

traffickers, which make it impossible for the operation to follow
fixed parameters. It must be recalled that the spraying is not being

carried out on plots of rice, cotton or banana fields where

217
Memorandum from Lowell Neese, Senior Aviation Advisor, DoS/INL/A (Colombia), to Paul
O’Sullivan, DoS/INL/A, p. 2 (9 May 2003). ER, Vol. III, Annex 47.
218
Ibid.
219
Balslev Report, op. cit., pp. 7, 18, 25. ER, Vol. II, Annex 4. See also Republic of Colombia,
Ministry of Environment, Division of Environmental Licenses, Order No. 599, p. 12 (23 Dec.
1999); Charles A. Menzie, Ph.D., Pieter N. Booth, MS & Susan B. Kane Driscoll, Ph.D., with
contributions/advice from Angelina J. Duggan, Ph.D., Charlotte H. Edinboro, DVM, Ph.D., Anne
Fairbrother, DVM, Ph.D., Marion J. Fedoruk, MD, CIH, DABT, FACMT, Janice Chunn Lindsay,

Ph.D., Katherine Palmquist, Ph.D. & Brian J. Prince, MRQA, Evaluation of Chemicals Used in
Colombia’s Aerial Spraying Program and Hazards Presented to People, Plants, Animals, and the
Environment in Ecuador, p. 12 (Apr. 2009) (hereinafter “Menzie et al., 2009Ž). EM, Vol. III,
Annex 158.

96 conditions for spraying are uniform and do not present any
obstaclesŽ 220.

(b) Colombia Uses Aircraft Unsuited for Aerial Spraying

2.115 The Counter-Memorial misrepresents the type of aircraft Colombia uses

in the spray programme, falsely claiming to use only aircraft that are designed for

221
depositing chemical sprays with pinpoint accuracy . In fact, many of the spray

missions have been conducted with military aircraft ill-suited for aerial spraying.

This, too, increases the likelihood of extensive spray drift.

2.116 Colombia asserts that the only aircraft employed in the aerial spraying

programme is the AT-802, an aircraft specifically designed for aerial application

of pesticides 22. For example, at paragraph 4.63, Colombia states that “[t]he

aircraft used for spraying operations are AT-802 planes manufactured by Air

223
TractorŽ . A photograph of the AT-802 is shown at Figure 2.8. The Counter-

Memorial declares that since Colombia uses this model of aircraft exclusively, the

Court can be confident that spray does not drift into Ecuador because the AT-802

is “specially designed to operate with precision during those tasks and possesses a

220
Republic of Colombia, Ministry of Environment, Division of Environmental Licenses, Order
No. 143, p. 4 (29 Mar. 2000). ER, Vol. V, Annex 133.
221
CCM, Chaps. 4 and 7, paras. 4.63, 7.32, 7.172.
222
Ibid., Chap. 4, para. 4.63; Hansman & Mena Report, op. cit., p. 25. ER, Vol. II, Annex 1.
223CCM, Chap. 4, para. 4.63.

97system of tanks, nozzles and pumps similar to those used for the spraying of

crops in other parts of the worldŽ 224.

225
Figure 2.8. Photograph of AT-802 Spray Plane

2.117 Here is another example of a misrepresentation by Colombia regarding the

spray programme. The AT-802 is not the only aircraft used in Colombia’s aerial

spraying programme. Nor is it even the predominant one. To the contrary, the

majority of aerial sprayings between 2000 and 2008 were carried out by aircraft

224Ibid.

225Hansman & Mena Report, op. cit., p. 25. ER, Vol. II, Annex 1.

98 226
other than the AT-802 . And the aircraft that Colombia has used are especially

prone to causing long-range spray drift.

2.118 Most significantly, Colombia has made extensive use of the OV-10, a

military aircraft neither designed nor suitable for use in aerial spraying. This

usage is clear from testimony provided by a pilot with many years of experience

flying aircraft in Colombia’s spraying programme, who testified that the “OV-10

BroncoŽ is “used for aerial spraying missionsŽ 227. Colombia’s widespread use of

this aircraft is also confirmed by evaluation reports produced by the U.S.

Department of State, and by reliable accounts published in the news media 228.

226
Hansman & Mena Report, op. cit., p. 24. ER, Vol. II, Annex 1; ibid., Appendix 3, p. 25.
227
United States District Court of the District of Colombia, Arias, et al. v. Dyncorp, et al.,
Quinteros, et al. v. Dyncorp, et al., Declaration of Redacted Witness (2 June 2010). ER, Vol. IV,
Annex 117.

228See Chemicals Used, op. cit., p. 3. EM, Vol. III, Annex 144; United States Department of
State, Bureau for International Narcotics and Law Enforcement Affairs, Report on Issues Related

to the Aerial Eradication of Illicit Coca in Colombia: Updated Report on Chemicals Used in the
Aerial Eradication Program, p. 3 (Dec. 2003). EM, Vol. III, Annex 148; Report by the Ministry
for the Environment, Housing and Territorial Development on the Program for the Eradication of
Illicit Crops by Aerial Spraying with Glyphosate Herbicide … PECIG, February 2010, Appendix 1:

Sample Report of a Verification Mission (Technical Report … 19th Verification Mission
concerning the spraying operations conducted between September 2008 and February 2009), p.
347. CCM, Vol. II, Annex 70; K.R. Solomon et al., “Human Health and Environmental Risks
from the Use of Glyphosate Formulations to Control the Production of Coca in Colombia:

Overview and ConclusionsŽ, in Journal of Toxicology and Environmental Health, Part A, 72:914-
920, p. 914 (2009). CCM, Vol. III, Annex 131-A; A.J. Hewitt et al., “Spray Droplet Size, Drift
Potential, and Risks to Nontarget Organisms from Aerially Applied Glyphosate for Coca Control
in ColombiaŽ, in Journal of Toxicology and Environmental Health, Part A, 72:921-929, 2009.
CCM, Vol. III, Annex 131-B; E.J.P. Marshall et al., “Coca (Erythroxylum coca) Control is

Affected by Glyphosate Formulations and AdjuvantsŽ, in Journal of Toxicology and
Environmental Health, Part A, 72:930-936 , p. 930 (2009). CCM, Vol. III, Annex 131-C; Steve
Salisbury, “Pray and Spray: SOF With Coke-Bustin’ BroncosŽ, S OLDIER OF F ORTUNE , p. 72 (July

992.119 The great extent to which Colombia has used the OV-10 is reflected in the

data generated by the planes’ on-board equipment, which record the type of

aircraft in use. These records make clear that the OV-10 has been employed on a

vast scale. Indeed, in the 10-kilometre area near the Ecuadorian border,

Colombia has used the OV-10 for aerial spraying at least 20,251 times 229. This

represents 18 percent of all the sprayings along or near the border. The volume of

230
spray mixture deposited by OV-10s is impressive: over 376,000 litres .

2.120 Colombia’s use of the OV-10 for aerial spraying dramatically increases

the likelihood of spray drifting into Ecuador. Unlike the AT-802 … the aircraft

Colombia falsely claims is the only plane used … the OV-10 was not designed for

aerial spraying or any other agricultural or forestry application 231. To the

contrary, the OV-10, shown in Figure 2.9, is an armed military reconnaissance

airplane used for observation and counterinsurgency missions 232. Among other

problems, it flies too fast for use in aerial spraying. The data show that it has

almost never sprayed while flying within the prescribed speed limit. Of the

20,251 times Colombia sprayed near the Ecuadorian border using an OV-10, it

1998) (quoting spray programme pilots as saying that “the OV-l0 may be good for reconnaissance
and being armed. But it isn’t as accurate as the Thrush for sprayingŽ.). ER, Vol. IV, Annex 52.
229
Hansman & Mena Report, op. cit., Appendix 3, p. 25. ER, Vol. II, Annex 1.
230Ibid., Appendix 3, p. 27.

231Ibid., p. 27.

232Ibid., p. 27. Janes All The World’s Aircraft, p. 421 (stating that the OV-10 aircraft was
designed as an “armed reconnaissance aeroplane . . . specifically suited for counterinsurgency
missionsŽ).

100flew faster than the 165 mph speed limit claimed in the Counter-Memorial more

than 99 percent of the time, and faster than Colombia’s self-described “worst case

233
scenarioŽ speed of 333 km/hr 56 percent of the time .

Figure 2.9. Photograph of OV-10 Aircraft. 234

2.121 As a consequence, chemical spray released from the OV-10 is particularly

235
prone to drift . This problem was recognized by one of Colombia’s own spray

pilots, who stated: “The OV-10s fly so fast that the air turbulence doesn’t allow

233
Ibid., Appendix 3, p. 18.
234Hansman & Mena Report, op. cit., p. 27. ER, Vol. II, Annex 1.

235Ibid. (“[T]he OV-10 was operated at a significantly higher airspeed than other aircraft type. . .

the high speed results in smaller droplets in the spray which will drift furtherŽ.).

101the herbicide to fulfill its purpose. The herbicide is blown into a scatter and

236
vanishesŽ . It was also acknowledged by the USDA which, after conducting a

verification mission in 2001, recommended that, “to avoid overspray[]Ž, the

programme should stop using “[the] OV-10Ž for small fields after finding

237
evidence of “[s]erious oversprayingŽ .

2.122 Perhaps Colombia will eventually explain why it has used the OV-10 for

aerial spraying when it is manifestly unsuited for that purpose (and why it

conceals these facts in the Counter-Memorial). Until it does so, the best

explanation might be the one published in Soldier of Fortune magazine, to the

effect that OV-10s are “cheapŽ because they are “obtainedŽ from “surplus

collecting dust in the bone yards of U.S. federal agencies in Maryland and

238
VirginiaŽ .

236Steve Salisbury, “Pray and Spray: SOF With Coke-Bustin’ BroncosŽ, OLDIER OF FORTUNE , p.

72 (July 1998). ER, Vol. IV, Annex 52. See also ibid. (“The OV-10 may be good for
reconnaissance and being armed. But it isn’t as accurate as the Thrush for sprayingŽ.).
237
U.S. Department of Agriculture, Agricultural Research Service, Colombia Coca Verification
Mission April-May 2001, p. 78 (7 July 2001). ER, Vol. III, Annex 41.
238
Steve Salisbury, “Pray and Spray: SOF With Coke-Bustin’ BroncosŽ, OLDIER OF FORTUNE , p.
72 (July 1998). ER, Vol. IV, Annex 52. Nor is the OV-10 the only other aircraft used by
Colombia in the aerial fumigation programme. Colombia also makes extensive use of still another

aircraft, the T-65, which was used for 52,025 spray events within 10 kilometres of Ecuador’s
border. Hansman & Mena Report, op. cit., Appendix 3, p. 25. ER, Vol. II, Annex 1. The T-65
also creates a significant risk of off-target drift. As explained by the Colombian Agricultural
Institute, “Turbo Thrush Commander aircrafts . . . are “high speedŽ aircraft. The use of these
planes is problematic because it “influences the aspersion cloud that is discharged, producing

smaller drops, compared to those produced by Helicopters, which are classified as low speedŽ.
Republic of Colombia, Colombian Agriculture and Livestock Institute, ICA Concepts Regarding
A Report Issued by the Environmental Audit Techeca Ltda., p. 4 (1994) (emphasis in original).

102(c) The Pilots of the Spray Planes Lack Proper Training and Discipline, and
Routinely Ignore Operational Requirements to Prevent Spray Drift

2.123 The Counter-Memorial represents that the spray pilots are well-trained

professionals with extensive aerial spraying experience. Paragraph 4.63 states:

“The spray personnel … pilots … are provided by DynCorp, Inc., a private

companyŽ and these “pilots are specifically certified, trained and experiencedŽ.

Similarly, paragraph 7.17 emphasizes that the “Aircrew are fully trained and

flights are monitored and recordedŽ. This is yet another example of how the

Counter-Memorial misrepresents key aspects of the aerial spraying programme.

2.124 The deficiencies in the management and execution of the programme,

including in the capability and responsibility of the pilots, was highlighted by the

U.S. Department of State, which observed that the “expansion of [aerial spraying]

operationsŽ during the 1990s “brought with it associated problems in Colombian

contract pilot capabilityŽ 239, and expressed concern about their “lack of

ER, Vol. V, Annex 122; see also ibid., p. 7. It appears that none of the aircraft used by Colombia
were properly evaluated prior to their use for aerial sprayingA report by the Colombian
Agricultural Institute in 1999 states that “[w]e consider that the authorization for equipment and
aircraft must first respond to a technical evaluation regarding its effectiveness. The ICA evaluated
the applications carried out via helicopter, positively conceptualizing on its use; however, it did
not do this for applications via airplane, despite the fact that applications are being carried out via

airplane. In this regard, the technical concepts have been issued in a timely manner but have not
been taken into accountŽ. Republic of Colombia, Ministry of Environment, Division of
Environmental Licenses, Order No. 599, p. 11 (23 Dec. 1999). ER, Vol. V, Annex 132.
239
Memorandum from Peter P. Trent, INL/RM/ASD, PSC Bogota, to Grant Harden,
INL/RM/ASD, COR, p. 2 (4 July 1996). ER, Vol. III, Annex 34.

103experienceŽ 240. The State Department cited as a particular problem the fact that

“managementŽ had failed to “adequately deal with the pilots (sic) lack of

241
disciplineŽ .

2.125 The same concerns about pilot capability and lack of experience continued

to be voiced by the State Department over the next 10 years. The State

Department criticized the slipshod manner in which pilots were trained, finding

that the programme was so deficient that, in a classic case of the blind leading the

blind, novice pilots were themselves placed in charge of training those with even

less experience:

The contractor developed pilot training program for the OV-10
does not yet meet FAR [Federal Aviation Regulations]

requirements. Since there is no FAA or DoS [Department of
State] approved pilot training program, pilots with less than 50
airframe hours are signed off as instructor pilots. These instructor

pilots are in turn training other instructor pilots and plans are to
sign them off as instructor pilots with the same minimum
training242.

2.126 Such deficiencies in pilot training and discipline were raised in many

State Department evaluations. One observed that the “pilots being trainedŽ were

“demonstrating lapses of pilot discipline and lack of ability to follow published

240Memorandum from David Johnson, INL/C/ASD, to Grant Harden, INL/C/ASD, p. 1 (14 Nov.
1996). ER, Vol. III, Annex 35.

241Ibid.
242
Memorandum from Tim Doty, COR, INL/RM/AD, to Dyncorp, PSD Manager, pp.1-2 (Aug.
1997). ER, Vol. III, Annex 38.

104guidanceŽ and that this “lack of discipline is singularly the most dangerous safety

of flight issueŽ 243. This was demonstrated by:

“clear examples that some spray pilots were using poor judgment.
This, combined with unacceptable techniques resulted in collateral

damage to legitimate crops and pastures. The overall damage to
the image of the program this month by these pilots was
significantŽ 24.

2.127 The State Department reported that although these “issuesŽ had been

brought to the attention of the programme’s “managementŽ, the managers still

“maintained their focus on meeting deadlines while sometimes jeopardizing

245
safetyŽ . The State Department therefore concluded that “Management is not

246
adequately supporting program safetyŽ .

2.128 Repeated attempts to address these problems fell on deaf ears. In 1999,

the State Department was forced to conclude that the “contractorŽ had “failed to

provide adequate OV-10 experience levelŽ and that “for almost six months the

243
Memorandum from David Johnson INL/C/ASD to Grant Harden, INL/C/ASD, p. 1 (12 Dec.
1996). ER, Vol. III, Annex 36.
244
Ibid.
245Ibid.

246Ibid. Another evaluation reported that the spray planes were:

“operating in Colombia without a base of reference to operate from and
are developing tasks as they need. Considering the hostile
environment and the harsh operating conditions, this seems to be the

least safe approach and dramatically increases the risk associated with
the mission. Contractor operations should have taken a more proactive
approach as directed by the DoS/AD Chief to prevent this situationŽ.

Memorandum from Tim Doty, COR, INL/RM/AS to Dyncorp, PSD Manager, p. 9 (28 May
1997). ER, Vol. III, Annex 37.

105contractor has not provided adequate OV-10 standardization oversight of the OV-

10 programŽ 24.

2.129 Another inspection, this time in 2000, observed serious “deficienciesŽ

that, the State Department determined, “requires immediate attention by

248
managementŽ . These problems included such basic issues as “the overall

organization and chain of commandŽ, which, the State Department concluded,

had “led to several complications and an overall confusion about duties and

249
responsibilitiesŽ . Among other criticisms leveled by the State Department

were the following, each of which identified fundamental problems with the spray

programme:

x “managersŽ had “no record of a job description or briefings as to

duties and responsibilitiesŽ;

x incoming personnel were “not provided any formal in-processingŽ and

that “procedures are not briefed, provided or discussedŽ;

x “[n]o self-inspection program exist[ed] except for a limited quality

control audit programŽ;

x “[m]anagersŽ were “unfamiliar with the contract and technical

directivesŽ;

247Memorandum from Stephen H. Harris, INL/RM/AD, to Dyncorp, p. 3 (21 June 1999). ER,
Vol. III, Annex 39.

248Aviation Resource Management Inspection of Air Wing Colombia Site, p. 1 (23 Mar. 2000).
ER, Vol. III, Annex 40.
249
Ibid.

106 x “[c]ompliance with proceduresŽ needed to be “improved to increase

both safety of personnel involved and effectivenessŽ of the “missionŽ;

and

x “[t]he Site Safety Manager in ColombiaŽ was “not conducting
250
required safety inspections, surveys and hazard analysisŽ .

2.130 In light of these pervasive problems, the State Department made the

following determination: “Overall complacency towards safety is a primary

concern and needs to be corrected immediatelyŽ 25.

2.131 Apparently, no such corrections were made. In February 2001, the State

Department complained about the “constant[]Ž need to “remind spray pilots of

what to avoid, for example villages, etcŽ 25. Several months later, the State

Department was forced to criticise the spray programme for the “observed

substandard condition of the aircraftŽ, which it determined was a “direct

253
reflection of being understaffedŽ . The State Department insisted that

254
“IMMEDIATE attention in this area is recommended!Ž .

250Aviation Resource Management Inspection of Air Wing Colombia Site, pp. 2-6, 28 (23
Mar.2000). ER, Vol. III, Annex 40.

251Ibid.
252
Memorandum from Michael J. Kenna, INL/RM/AD, Senior Aviation Advisor, to Steve Harris
(COR) and George Arzente, INL/RM/AD/COR (Undated). ER, Vol. III, Annex 51.
253
Memorandum from Stephen H. Harris, COR, DoS/INL/A, to Dyncorp, p. 4 (Oct. 2001). ER,
Vol. III, Annex 49.
254
Ibid. (emphasis in original).

1072.132 In March 2002, the State Department criticized the “systemic failure in

following of aircraft operational proceduresŽ and complained about the “lack of

importance placed on the safety programŽ 255. Frighteningly, the State

Department even found that the programme was “sufferingŽ from “incomplete

256
and inaccurate cartographic dataŽ .

2.133 In short, Colombia’s attempt to portray its aerial spraying programme as a

well-run and professional operation is completely contradicted by the evidence,

which shows that pilots are undisciplined, lack sufficient training and ignore

operational requirements, especially in regard to preventing spray drift. These

deficiencies provide further explanation for why they consistently release the

spray mixture at unsafe speeds and altitudes in violation of the

requirements/regulations described in the Counter-Memorial. As discussed

below, the evidence shows that Colombia’s “cowboyŽ pilots not only routinely

flout the limits on flight speed and altitude of spray release, but also the

requirements relating to droplet size, spray application rate and time of day when

spraying is permitted.

255Memorandum from Lowell E. Neese, SAA, DoS/INL/A (Bogota), to Stephen H. Harris, COR,
DoS/INL/A, p. 5 (13 Mar. 2002). ER, Vol. III, Annex 44.

256Memorandum from David A. Campbell, COR, DoS/INL/A, to Dyncorp, PSD Manager, p. 19
(Feb. 2004). ER, Vol. III, Annex 48.

108 D. D ROPLET SIZE

2.134 Aircraft speed and height of spray release are not the only factors that

Ecuador and Colombia agree significantly contribute to drift. The size of the

spray droplets is also a major contributor. Smaller droplets drift longer distances.

Colombia agrees. It states in the Counter-Memorial that the amount of spray drift

257
depends on the “initial size of the spray dropletsŽ . Indeed, Colombia’s experts

acknowledge that droplet size is one of the most important determinants of spray

drift58.

2.135 To defend the aerial spraying programme, Colombia has on numerous

occasions represented that the droplet size of the spray mixture is large, since

larger droplets are less likely to drift off-target. For example, an official

communication from the Director of Colombia’s DNE to the Ecuadorian

Scientific and Technical Commission on 14 April 2004 represented that the

“average dropŽ was 650 microns in size 259. In September 2005, Colombia

informed the IACHR that its technical parameters allowed spray droplets 300-

257
CCM, Chap. 4, para. 4.68. See also CCM, Chap. 7, para. 7.17.
258Dobson Report, op. cit., p. 523. CCM, Vol. I, Appendix. See also Hewitt et al., 2009, op. cit.,
pp. 921-922. CCM, Vol. III, Annex 131-B.

259Note SARE-142, sent from the National Directorate of Narcotics of the Ministry of Interior
and Justice of Colombia to the President of the Technical-Scientific Commission of Ecuador, p. 5

(14 Apr. 2004). EM, Vol. II, Annex 62.

1091,500 microns (0.3 to 1.5 mm) in size 260, a range that is considered larger than

“extremely coarseŽ, the largest size specified by internationally accepted droplet

size standards 261. Based on information provided to them by Colombia, the

authors of the 2005 Solomon study also reported that the size of the spray

262
droplets were in the range of 300-1,500 microns . Colombia’s EMP allows

263
droplets 300-1,000 microns in size .

2.136 However, the size of the droplets is much smaller than Colombia has

claimed. Subsequent analysis in 2009, paid for by the Colombian and U.S.

governments, dramatically revised the 2005 study’s estimate, determining that the

actual median droplet size is only 128-140 microns (0.138 to 0.140 mm) 264. In

other words, the median droplet size currently expected by Colombia is now half

the estimated size that the 2005 Solomon study assumed as the worst case when it

concluded that drift was unlikely to be a problem, and 50 percent smaller than the

260Diplomatic Note Nº DDH. 58003 from the Colombian Foreign Ministry to the Executive

Secretary of the Inter-American Commission on Human Rights, 18 Sept. 2005, p. 26. ER, Vol. V,
Annex 154.
261
Giles Report, op. cit., p. 22. ER, Vol. II, Annex 2; American Society of Agricultural and
Biological Engineers, Spray Nozzle Classification by Droplet Spectra, ANSI/ASAE S572.1 (Mar.
2009). ER, Vol. III, Annex 23.
262
Solomon et al., 2005, op. cit., p. 28. CCM, Vol. III, Annex 116.
263
Resolution Nº1054 of 30 September 2003 of the Ministry for the Environment of Colombia, p.
173. CCM, Annex 50.
264
Hewitt et al., 2009, op. cit., pp. 921. CCM, Vol. III, Annex 131-B. The Agricultural Institute
reported that Colombia has known its publicly cited droplet size range was inaccurate since at
least 1999, when the Colombian Institute rejected the suggestion that the droplet size could be
“between 300, 1000 and 1500 microsŽ. Republic of Colombia, Ministry of Environment,

Division of Environmental Licenses, Order No. 599, p. 13 (23 Dec. 1999). ER, Vol. V, Annex
132.

110smallest size permitted by the EMP. Moreover, the “fine to very fineŽ droplets

admittedly sprayed by Colombia are dispersed in a spectrum 265. In other words, a

full 50 percent of the droplets are even smaller than the 128-140 micron median

size. This is particularly problematic because droplets smaller than 150 microns

are considered by Colombia’s own experts to be particularly prone to spray

266
drift . As Dr. Giles explains, “[g]iven the importance of the smallest droplets in

contributing to spray drift . . . the drift estimates based on the Colombian EMP

droplet size values would severely under-predict actual driftŽ 267.

2.137 In fact, even Colombia’s 2009 estimate overstates the actual size of the

droplets. The 2009 study’s authors predicated their droplet size estimate on the

presumption (based on information provided to them by Colombia) that spraying

is carried out in strict compliance with the aircraft speed and height requirements

claimed by Colombia … a presumption that the flight data obtained from the U.S.

265Hewitt et al., op. cit., 2009, pp. 921, 923-925. CCM, Vol. III, Annex 131-B. See also

Republic of Colombia, Colombian Agriculture and Livestock Institute, ICA Concepts Regarding
A Report Issued by the Environmental Audit Techeca Ltda., p. 2 (1994). ER, Vol. V, Annex 122.
266
Hewitt et al., 2009, op. cit., p. 922. (“In this study, there was interest in the spray volume
contained in relatively small droplets, i.e., those with diameter below 150 —m. This represents the
finer droplets in the spray, which might present more of an exposure risk for downwind spray drift
under unfavorable conditionsŽ.). CCM, Vol. III, Annex 131-B. See also Spray Drift Task Force,
A Summary of Aerial Application Studies, p. 2 (1997). ER, Vol. III, Annex 10. (“The cut-off point

of 141 microns or 150 microns has been established as a guide to indicate which droplet sizes are
most prone to drift. However, it is important to recognize that drift doesn’t start and stop at 141
microns. Drift potential continually increases as droplets get smaller than 141 microns, and
continually decreases as droplets get biggerŽ.)

267Giles Report, op. cit., p. 22. ER, Vol. II, Annex 2.

111 268
government prove unfounded ; since the actual flight speeds and altitudes of

spray release are very frequently much higher than allowed, the droplet size is

necessarily even smaller than Colombia’s experts presumed when they conducted

their study.

2.138 Colombia’s misrepresentation of droplet size is of fundamental

importance. As Australia’s Operating Principles in Relation to Spray Drift Risk

put it, “[s]pray droplet size . . . is the most important single factor in spray drift

risk. Smaller, lower mass droplets have greater potential for drifting off

269
targetŽ . This view is corroborated by the pesticide industry’s Spray Drift Task

Force, which assessed the “relative role of the factors that affect spray driftŽ and

determined that “[d]roplet size was . . . the most important factorŽ 270. The Giles

Report confirms that droplet size is one of the predominant factors influencing

spray drift and off-site deposition of Colombia’s spray mixture:

“The size of the spray droplets has important implications for

spray drift because it affects the droplet’s terminal velocity and
rate of evaporation. Smaller droplets have significantly slower
terminal velocities and are displaced greater distances by cross

winds than larger droplets. Likewise, smaller droplets have higher
surface area to mass ratios and the effect of evaporation is to

decrease their size more rapidly than larger droplets. As a result of

268
See supra Chap. 2, paras. 2.91-2.97, 2.101-2.107.
269
Australian Pesticides and Veterinary Medicines Authority (APVMA), AVPM Operating
Principles in Relation to Spray Drift Risk, p. 18 (15 July 2008). ER, Vol. III, Annex 22.
270
Spray Drift Task Force, A Summary of Aerial Application Studies, p. 1 (1997). ER, Vol. III,
Annex 10.

112 these two factors, smaller droplets are carried greater distances,
resulting in greater spray driftŽ27.

E. A PPLICATION RATE

2.139 Colombia also violates the EMP’s requirement governing the rate at

which the spray mixture may be applied, contrary to its representations in the

Counter-Memorial. In that regard, Colombia asserted that under no

circumstances does it apply the spray mixture at a rate greater than 23.65 litres

per hectare 27. Like its representations regarding aircraft speed, altitude of release

and droplet size, this one is false, too.

2.140 In fact, Colombia routinely exceeds the maximum allowable volume

sprayed per hectare. For example, in 2002, the threshold was violated 12,184

times in the area adjacent to Ecuador, representing 31 percent of all spraying

273
done that year in the border area . Nor was this the only year when Colombia’s

spraying exceeded the threshold with great regularity. It did so 5,267 times in

2006 (30 percent of all spraying in that year) and another 4,143 times in 2007 (38

percent of all spraying in that year)274.

271Giles Report, op. cit., p. 7. ER, Vol. II, Annex 2.
272
CCM, Chap. 4, para. 4.62.
273
Hansman & Mena Report, op. cit., Appendix 3, p. 22. ER, Vol. II, Annex 1.
274Ibid.

1132.141 In total, Colombia violated its own limits on application rate at least

275
27,429 times between 2000 and 2008 . This is 31 percent of the documented

spraying within 10 kilometres of Ecuador. (In fact, the number of violations is

almost certainly much higher since Colombia failed to record data on application

rates in 2000 and 2001 and the data was also unusable for 2004 276.)

2.142 Colombia has no plausible excuse for so frequently exceeding its own

application rate limit. The Counter-Memorial states that Colombia’s aircraft are

fitted with specialized nozzles from which the spray is released, and that these

nozzles “have an automatic calibration mechanism that determines the amount of

spray mix to be released in order for the number of litres discharged per hectare

to be kept constant at 23.65 litres per hectareŽ 277. Elsewhere, the Counter-

Memorial represents that “the spray mix is propagated through automatically

calibrated nozzles that release the same amount of mixŽ 278. Supposedly, the

application rate is tracked after each spray mission; the Counter-Memorial states

that a “detailed report of the day’s operationsŽ is:

“prepared on the basis of the computerized system which records

each spraying operation with its respective route, geo-referenced
areas of application and the amount of spray mix released per

275
Ibid., p. 23.
276The data reported for 2004 is recorded in both metric and English units without specifying

which units were used for any particular spray event, making it impossible to determine how
many flights that year exceeded the requirement for volume.
277
CCM, Chap. 4, para. 4.62.
278Ibid., Chap. 7, para. 7.32.

114 minute. This allows verification of the location of the places

where the operations took place and quantification of the hectares
sprayed. A record is signed by the Base Commander and the
279
personnel involved in the operationŽ .

2.143 Colombia made the same representations to the authors of the 2005

Solomon study, who stated, based on information provided by Colombia, that

“[t]he aircraft spray systems are electronically calibrated to disperse a specified

quantity of spray mix per hectare, compensating for variances in ground

speedŽ 28. Solomon et al. relied on Colombia’s assurances that sophisticated

equipment ensures that only the precise amount of spray, and no more, is

released: “These electronic spray controls are checked each day by technicians

and also during the pilot’s preflight inspectionŽ281. Evidently, the controls were

not checked very carefully (if they were checked at all). That is the only

conclusion when Colombia violated its own limits on application rate … dumping

more of the spray mixture on a given area along the border with Ecuador than its

EMP allowed … tens of thousands of times between 2000 and 2008.

F. TIME OF D AY

2.144 Atmospheric conditions that Colombia concedes are prevalent at night are

also conducive to wider spray drift. As a result, the Counter-Memorial’s

279Ibid., Chap. 4, para. 4.64.

280Solomon et al., 2005, op. cit., p. 28. EM, Vol. III, Annex 116.
281
Ibid.

115assertion that Colombia’s spray missions occur only during the daytime is a

significant misrepresentation that has important implications in regard to the

distances travelled by the spray mixture it disperses along and near the border

with Ecuador.

2.145 Specifically, Colombia represents at paragraph 7.27 that its “spray

operationsŽ occur only “after sunriseŽ 28. Similarly, the authors of the 2005

Solomon study, based on information provided to them by Colombia, state that

283
“[s]praying is only conducted in daylight hours before mid-afternoonŽ . Thus,

on at least two occasions … once in the Counter-Memorial and again to the

authors of the 2005 Solomon study … Colombia has claimed that its aerial

spraying is only done during the daytime.

2.146 Once again, Colombia’s representations regarding the conditions in which

spraying occurs are contradicted by the evidence. In fact, much of the aerial

spraying takes place at night. This is evident from the U.S. Department of State’s

reports, which describe Colombia’s “support and planning for night sprayingŽ 284.

282
CCM, Chap. 7, para. 7.27.
283
Solomon et al., 2005, op. cit., p. 30. EM, Vol. III, Annex 116.
284Memorandum from Stephen H. Harris, COR, DoS/INL/A, to Dyncorp, PSD Manager, p. 11

(Dec. 2001) (emphasis added). ER, Vol. III, Annex 42.

116 2.147 The data collected by the spray planes confirm Colombia’s night time

spraying on a massive scale. Between 8 p.m. and 4 a.m., Colombia aerially

dispersed the spray mixture at least 24,540 times within 10 kilometres of the

285
border with Ecuador, representing 22 percent of all spraying in the region . If

late afternoon spraying is included (4 p.m. to 8 p.m.) … which contradicts the 2005

Solomon study’s presumption that spraying is only done “before mid-afternoonŽ

… the number of violations rises to 47,262 and the percentage increases to 43

286
percent . The falsity of Colombia’s claim that aerial spraying only occurs “after

sunriseŽ is graphically depicted in Figure 2.10.

12000

Daytime (62,419 flights, 57%)
10000
Late Afternoon (22,722 flights, 21%)

Nighttime (24,540 flights, 22%)

8000
Prohibited (Solomon et al., 2005)

Prohibited (Colombia Counter-Memorial)
6000

4000

NUMBER OF SPRAY EVENTS

2000

0
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 00 1 2 3 4
TIME OF DAY (Local Time)

Figure 2.10. Time of Day of Spray Events

285Hansman & Mena Report, op. cit., p. 23. ER, Vol. II, Annex 1.

286
Ibid., p. 24.

1172.148 Colombia’s night time operations greatly increase the propensity for the

spray mixture to drift longer distances, including into Ecuador. According to the

Solomon study (2005) … the main scientific evidence relied upon by Colombia …

the purpose of the prohibition on spraying after “mid-afternoonŽ is “to ensure that

conditions are appropriate for applicationŽ 287. One reason for this is not difficult

to fathom: spraying during darkness increases the likelihood of depositing the

spray off-target because the pilot is unable to see the targeted area and has a

stronger incentive to fly higher than otherwise in order to avoid objects that

cannot be seen at night, such as unusually tall trees 288.

2.149 There is a technical reason why spraying at night increases spray drift: the

meteorological condition known as a “thermal inversionŽ, in which air at a higher

altitude is warmer than air closer to the ground 289. This condition, which

frequently occurs at night in the border area between Colombia and Ecuador, is

particularly favourable to spray drift. According to Australia’s Operating

Principles in Relation to Spray Drift Risk, the “potential for or presence of a

surface temperature inversion condition is a very important factor in spray drift

risk managementŽ 290. Because the “[n]ight-time hoursŽ are “often associated

287
Solomon et al., 2005, op. cit., p. 30. EM, Vol. III, Annex 116.
288
Hansman & Mena Report, op. cit., p. 23, n. 9. ER, Vol. II, Annex 1.
289Ibid. See also Menzie et al., 2009, op. cit., p. 14. EM, Vol. III, Annex 158.

290 Australian Pesticides and Veterinary Medicines Authority (APVMA), AVPM Operating
Principles in Relation to Spray Drift Risk, p. 24 (15 July 2008). ER, Vol. III, Annex 22.

118with surface temperature inversion[s]Ž, Australia’s Operating Principles explain,

291
“spray operations should not be conductedŽ at night . Hansman & Mena further

explain this phenomenon:

“[D]uring daylight the atmosphere has better mixing and it is less
likely that the spray will drift away from the intended target zone.
At night the temperature of the surface is often lower than the

warmer air above due to rational cooling. This results in a low
altitude temperature inversion with a cool lower layer of air often

only 10 or 20 meters thick. This phenomena will result in calm
winds at night and ground fog if there is sufficient moisture in the
air. The inversion stratifies the atmosphere and prevents mixing

between the layers. As a consequence if the aircraft sprays in the
warm layer above the inversion most of the spray (particularly the

smaller droplets) will not hit the target area but will drift with the
winds in the upper layer. This can result in advection or drift of
the spray significant distancesŽ 292.

The Counter-Memorial does not dispute that thermal inversions cause spray to

drift long distances, or that they frequently occur along the border with Ecuador.

But Colombia dismisses thermal inversions as a cause for concern because they

occur only “at nightŽ, and the “spraying operationsŽ take place exclusively “after

sunriseŽ 293. Except for the more than twenty-four thousand times Colombia

291
Australian Pesticides and Veterinary Medicines Authority (APVMA), AVPM Operating
Principles in Relation to Spray Drift Risk, p. 25 (15 July 2008). ER, Vol. III, Annex 22.
292
Hansman & Mena Report, op. cit., p. 23, n. 9. ER, Vol. II, Annex 1; see also Menzie et al.,
2009, p. 14. EM, Vol. III, Annex 158. Dr. Giles further explains that “[a]n extremely undesirable
meteorological condition in terms of increasing the risk of significant spray drift is when there is a
temperature inversion and associated light and variable wind. In a temperature inversion, vertical
dispersion of small spray droplets is inhibited because they remain trapped between layers of air.

Thus, spray droplets can remain aloft and often become highly concentrated in relatively small
packets or layers of air . . . . During the inversion or as the inversion weakens, the wind can easily
displace these high concentrations of suspended small droplets over significant distances and in
concentrations greatly exceeding those typical of normal, cross wind driven driftŽ. Giles Report,
op. cit., p. 43. ER, Vol. II, Annex 2.
293
CCM. Chap. 7, para. 7.27.

119 294
sprayed at night … all within 10 kilometres of the border with Ecuador ! To

make matters even worse, on those 24,000+ occasions, Colombia also violated its

limits on aircraft speed (165 mph) and altitude of dispersion (50 metres) more

than 2,431 times 295. Flying too fast and too high at night … a perfect trifecta of

violations … virtually ensures widespread spray drift, including into Ecuador.

G. TEMPERATURE , HUMIDITY AND W IND C ONDITIONS

2.150 Colombia acknowledges the importance of meteorological conditions for

spray drift. At paragraph 4.68 of the Counter-Memorial, Colombia states that

“[s]pray drift depends essentially on wind speed and direction, as well as on a

number of other atmospheric factors including temperature, relative humidity and

atmospheric stabilityŽ29.

2.151 Higher temperature and lower humidity lead to greater evaporation of the

spray droplets, reducing their size and making them more prone to drift 297. As

explained in the UN Food and Agriculture Organization Guidelines on Good

Practice for Aerial Application of Pesticides, “[i]n conventional (water-based)

spraying, high temperature, combined with low relative humidity will reduce

294
Hansman & Mena Report, op. cit., p. 23. ER, Vol. II, Annex 1. Night was defined as 8 pm to
4 a.m. local time. Ibid.
295
Hansman & Mena Report, op. cit., Appendix 3, p. 27. ER, Vol. II, Annex 1.
296CCM, Chap. 4, para. 4.68; see also CCM, Chap. 7, para. 7.17.

297Giles Report, op. cit., pp. 26, 29. ER, Vol. II, Annex 2; Menzie et al., 2009, op. cit., p. 15.
EM, Vol. III, Annex 158.

120droplet size through evaporation, which will increase the risk of driftŽ 298.

Colombia’s experts acknowledge this risk, reporting that “at least half of the

droplet volume could potentially be lost through evaporationŽ 299.

2.152 Wind speed and direction also play an important role in spray drift. As

explained in the Giles Report, strong winds may carry spray droplets …

particularly the small droplets dispersed by Colombia’s spray planes … great

distances, leading to deposition at 10 kilometres or more from the application

site300. Less self-evidently, even low wind speeds can be conducive to drift.

Australia’s Operating Principles in Relation to Spray Drift Risk observe that

“times of no wind (essentially below 3 km/hr) often precede or accompany

periods of highly stable air and surface temperature inversion conditions both of

which can greatly increase spray drift risk. Moreover, when wind resumes after

301
periods of calm, its direction is not predictableŽ . As a result, some regulatory

298
Food and Agriculture Organization of the United Nations, Guidelines on Good Practice for
Aerial Application of Pesticides, p. 23 (2001). ER, Vol. IV, Annex 98. See also Australian
Pesticides and Veterinary Medicines Authority (APVMA), AVPM Operating Principles in
Relation to Spray Drift Risk, p. 22 (15 July 2008) (“For water based tank mixes, humidity and
temperature affect droplet evaporation rates and can make a surprisingly large difference in drift

deposits at longer downwind distances due to shrinkage in droplet size (and therefore mass)Ž.).
ER, Vol. III, Annex 22.
299
Hewitt et al., 2009, op. cit., pp. 925-926. CCM, Vol. III, Annex 131-B.
300
Giles Report, op. cit., p. 28. ER, Vol. II, Annex 2.
301 Australian Pesticides and Veterinary Medicines Authority (APVMA), AVPM Operating

Principles in Relation to Spray Drift Risk, p. 21 (15 July 2008). ER, Vol. III, Annex 22.; see also
Giles Report, op. cit., pp. 27-28, 42-44. ER, Vol. II, Annex 2; Menzie et al., 2009, op. cit., p. 14.
EM, Vol. III, Annex 158.

121authorities establish both minimum and maximum wind speeds for aerial spraying

302
operations .

2.153 Recognizing the importance of these factors for affecting spray drift,

Colombia’s EMP includes specific parameters including a “maximum outside

temperature during applicationŽ of 35ºC and a “maximum wind velocityŽ of 5

knots 303. The Counter-Memorial assures the Court that “[t]hese parameters are

strictly observed by the personnel involved in spraying operationsŽ 304, and that

wind conditions are “constantly monitored by the aircraft and if they are not

305
within the parameters allowed, the mission is annulled or postponedŽ . In

paragraph 4.16, Colombia provides the blanket assurance that weather conditions

are evaluated prior to each spray mission and that no spraying occurs when the

meteorology favours spray drift:

“Following an assessment of whether the minimum requisite
security and weather conditions … including temperature, wind

direction and speed and relative humidity … are present in the areas
to be sprayed, the operations begin. Any alteration to these
conditions entails the immediate cancellation of the spraying

missionŽ.

302
See infra Chap. 4, paras. 4.110-4.112.
303Resolution Nº1054 of 30 September 2003 of the Ministry for the Environment of Colombia, §§

3.2.2.1. CCM, Vol. II, Annex 50. The EMP provides no minimum wind velocity, despite the
prevalence of low wind conditions and thermal inversions in the border region.
304
CCM, Chap. 7, para. 7.17.
305Ibid., Chap. 7, para. 7.172.

1222.154 Conspicuously, Colombia provides no data to demonstrate the truthfulness

of these representations. It does not appear that Colombia even records or

maintains data about temperature, wind or other meteorological conditions during

spray flights. At least no evidence of this has been provided in the Counter-

Memorial. Nor is any such data recorded by the spray planes themselves, or

included within the information supplied to the U.S. Department of State and

obtained by Ecuador 306. In light of the fact that every other representation by

Colombia about its alleged compliance with the operational requirements of the

spray programme … regarding flight speed, altitude, type of aircraft, pilot

capability and discipline, droplet size, application rate and night time spraying …

has been proven false, Ecuador believes that Colombia’s unsupported and self-

serving assertions about compliance with temperature, wind and other such

requirements do not merit the full faith and credit Colombia requests of the Court.

To the contrary, the absence of data from Colombia to demonstrate its

compliance with meteorological requirements constitutes an additional reason to

doubt that it has succeeded in preventing spray drift into Ecuador 307.

Section III. Colombia’s Prior Misrepresentations to Ecuador and Others

2.155 The Counter-Memorial, in asserting that Colombia never breaches the

rules against spraying too fast or too high, that the volume of spray is perfectly

306Hansman & Mena Report, op. cit., p. 30. ER, Vol. II, Annex 1.

307See supra Chap. 2, para. 2.82; Giles Report, op. cit., pp. 26-30, 42-44. ER, Vol. II, Annex 2.

123calibrated not to exceed a specified dose, and that the spray droplets are always

sufficiently large, repeats prior misrepresentations that Colombia repeatedly made

to Ecuador.

2.156 For example, on 14 April 2004, Colombia informed Ecuador via

diplomatic note that the aerial spray programme is “carried out under the

technical parameters established in the Environmental Management Plan for the

Program for the Eradication of Illicit Crops by Aerial Spraying with Glyphosate

308
(PECIG)Ž . Colombia explicitly told Ecuador that the programme “includes

operational parameters for spraying such as flight altitude, temperature, relative

humidity, cloudiness, rain fall, type of nozzle, droplet size, and dosage, among

othersŽ, and that “[i]f any of these parameters is not met, the spraying mission is

309
cancelledŽ . Colombia made similar representations in August 2004, when its

delegation to the Binational Scientific and Technical Commission declared that

“the technical conditions necessary to prevent the spray from reaching

Ecuadorian territory shall be guaranteedŽ 31. When Colombia made these

representations to Ecuador, it surely knew that they were untrue: by August 2004,

the speed limit of 165 mph had been violated at least 41,714 times, the height

308
Note NºSARE-142 from the Director of the National Narcotics Directorate of Colombia to the
President of the Scientific and Technical Commission of Ecuador, para. 2.2, 14 Apr. 2004. CCM,
Vol. II, Annex 13.
309
Ibid.
310Minutes of the Fourth Meeting of the Joint Scientific and Technical Commission (2 Aug.

2004). EM, Vol. II, Annex 64.

124limit of 50 metres had been breached 10,815 times, and the application rate limit

of 23.65 litres per hectare had been exceeded 14,654 times in sprayings along the

311
border with Ecuador . And Colombia itself says its Ministry of the

Environment was closely monitoring compliance with all of these parameters, as

it was ordered to do by the Colombian Council of State 312.

2.157 On 20 December 2006, Colombia’s Ministry of Foreign Affairs again

assured Ecuador’s Embassy in Colombia that the aerial spraying was being

conducted in accordance with the operational requirements, and thereby

preventing spray drift into Ecuador. On that occasion Colombia stated:

“The Ministry of Foreign Affairs respectfully ensures to the
Honourable Government of Ecuador that the Program for

Eradication of Illicit Crops with Glyphosate … PECIG … is
executed under the strictest technical measures which guarantee
the protection of the environment and human health, also
313
preventing the sprayed mixture to reach Ecuadorian territoryŽ .

311Hansman & Mena Report, op. cit., Appendix 3, p. 27. ER, Vol. II, Annex 1. Similarly, in
November 2004, the Colombian Minister of Foreign Affairs wrote to the Director-General of the

National Police of Colombia regarding Ecuador’s concerns over the spray’s transboundary impact
in Ecuador. The Foreign Minister stressed it was essential to “guarantee[] compliance with the
technical and operational conditions established for the environmental management plan for the
eradication program that prevent any impact that may be derived from the spraying operations on
non-target areasŽ. Note Nº 001727 from the General Director of the National Police of Colombia
to the Colombian Foreign Minister, 2 Nov. 2004. CCM, Vol. II, Annex 55. Colombia’s Ministry

of Foreign Affairs reiterated this view in September 2005 when it stated that “the spraying tasks
with glyphosate herbicide (PECIG) are regulated by the relevant environmental rules that are
strictly enforced in the Program’s implementationŽ. Aide-Mémoire “Aerial Spraying Issue with
EcuadorŽ, Ministry of Foreign Affairs of Colombia, Division of Multilateral Political Affairs,
Sub-division for Drug Affairs, Sept. 2005. CCM, Vol. II, Annex 56.

312See supra Chap. 2, paras 2.80; see also CCM, Chaps. 4 and 7, paras. 4.26, 4.64, 7.172.

313Diplomatic Note from the Colombian Foreign Ministry to the Ecuadorian Embassy in Bogotá,
20 Dec. 2006. CCM, Vol. II, Annex 26.

125Again, the data supplied by the spray planes say exactly the opposite.

2.158 Nevertheless, the empty assurances given to Ecuador were repeated by

President Álvaro Uribe of Colombia in a letter to the President of Ecuador on 21

December 2006, in which Colombia’s Head of State represented that the

resumption of aerial spraying near the Ecuadorian border would “comply[] with

314
all the technical requirementsŽ . In fact, by the time Colombia gave these

assurances to Ecuador, the reality was that in the border area it had already

violated the speed limit of 165 mph at least 54,336 times, exceeded the height

limit of 50 metres 13,114 times, and violated the application rate limit of 23.65

315
litres per hectare 18,871 times .

2.159 Colombia made these representations not just to Ecuador, but to

international organizations as well. It did so, for instance, to the IACHR.

Colombia informed the IACHR by note dated 18 September 2005 that the

programme “is carried out in accordance with the Environmental Management

Plan and in strict observance of environmental and human health care legislation

316
in forceŽ . Colombia further represented to the Commission that:

314
Note from the President of Colombia to the President of Ecuador, 21 Dec. 2006. CCM, Vol.
II, Annex 27.
315Hansman & Mena Report, op. cit., Appendix 3, p. 27. ER, Vol. II, Annex 1.

316Diplomatic Note Nº DDH. 58003 from the Colombian Foreign Ministry to the Executive
Secretary of the Inter-American Commission on Human Rights, 18 Sept. 2005, § IV. CCM, Vol.

II, Annex 19.

126 “[s]praying must comply with a series of technical parameters
(flight altitude, maximum herbicide release, droplet size, foreseen
drift, temperature, relative humidity, and maximum wind speed)

that guarantee that the mixture used is targeted exclusively
towards the targeted eradication vegetation, that is to say, the illicit
crops, therefore minimizing any possible effect due to driftŽ 317.

2.160 Based on Colombia’s representations regarding its compliance with the

operational conditions necessary to prevent spray drift, the IACHR declined to

318
indicate provisional measures requested to protect people in Ecuador .

Colombia never informed the IACHR that, in reality, at the time of its submission

to the Commission, the operational requirements it invoked in opposition to the

request for provisional measures had already been violated many thousands of

times. More specifically, by 18 September 2005 (the date of its submission) the

speed limit of 140 mph had been violated at least 74,984 times, the height limit of

25 metres had been breached 56,592 times, and the application rate limit of 23.65

319
litres per hectare had been exceeded 15,223 times .

2.161 In short, Colombia has a long history of misrepresenting its compliance

with the operational requirements for its aerial spraying programme. The

Counter-Memorial breaks no new ground in this regard.

317
Ibid., § IV(c).
318
Note Nº DSF40.1/3.1.3-4-00423 from the Executive Secretary of the Inter-American
Commission on Human Rights to the Colombian Foreign Minister, 18 Nov. 2005. CCM, Vol. II,
Annex 20.
319
Hansman & Mena Report, op. cit., Appendix 3, p. 27. ER, Vol. II, Annex 1.

127 Section IV. Colombia’s Failure to Stop Spraying in Buffer Zones and
Other Protected Areas

2.162 Colombia praises itself in the Counter-Memorial for scrupulously

respecting areas where it has agreed not to spray. In this section, Ecuador shows

that this claim is untrueThe evidence shows that Colombia: (i) has twice

identified “buffer zonesŽ adjacent to the border with Ecuador, which it offered to

treat as a “safety marginŽ in which no aerial spraying would be conducted in

order to protect Ecuador against spray drift; and (ii) has nevertheless routinely

carried out aerial spraying operations in those areas close to the border even when

spray flights in those areas were supposedly “suspendedŽ. Colombia has also

sprayed in very close proximity to border area reserves that Ecuador has set aside

for vulnerable indigenous peoples, particularly the Awá and the Cofán, who have

been especially impacted by Colombia’s deposition of the spray mixture over

their communities.

A. COLOMBIA ’SS PRAYING INBUFFER ZONES ESTABLISHED TO PROTECT

E CUADOR FROM SPRAY DRIFT

1. Colombia Has Violated the 2.7-3.0 Kilometre “Safety Margin” It Previously

Claimed Was Sufficient to Protect Ecuador from Spray Drift

2.163 The data recorded by the spray planes demonstrate that they routinely

spray very close to the border, including in areas that Colombia said would be

128 320
off-limits to spraying in order to protect Ecuador . On 14 July 2001, in

responding to Ecuador’s concerns about harm to Ecuadorian territory, Colombia

represented that a “safety margin of 2.7-3.0 kilometres is believed to be

enoughŽ 321. Ecuador did not then agree, nor has it ever subsequently, that a 3

kilometre buffer zone is sufficient to protect it from aerial spraying by Colombia.

The point here is that Colombia did not observe its own self-described (and

inadequate) “safety marginŽ. Instead, it has routinely sprayed within 3.0

kilometres of the border. A total of 29,057 spray events were recorded in this

322
zone between 2000 and 2008 . Clearly, this volume of spraying adjacent to

Ecuadorian territory could not have been accidental.

2. Colombia Has Violated the 10 Kilometre Buffer Zone It Now Claims to
Respect

2.164 Ecuador does not consider that a 3 kilometre buffer zone is sufficient to

protect its people, animals and plants from harm caused by Colombia’s spray

programme. In Ecuador’s view, the evidence supports a prohibition on aerial

320
In addition, the flight path records indicate that there have been at least 4 spray events
conducted over Ecuadorian territory. Hansman & Mena Report, op. cit., p. 13. ER, Vol. II,
Annex 1.
321
Diplomatic Note DM/AL No. 25009, sent from the Ministry of Foreign Affairs of Colombia to
the Ministry of Foreign Affairs of Ecuador, p. 3 (14 July 2001). EM, Vol. II, Annex 42.
322
Hansman & Mena Report, op. cit., p. 12. ER, Vol. II, Annex 1.

129spraying by Colombia within 10 kilometres of Ecuadorian territory, as Ecuador

323
has continually demanded of Colombia since 2001 .

2.165 Colombia has never formally or definitively committed to refrain from

spraying within 10 kilometres of the international border. To be sure, the

Counter-Memorial describes a series of voluntary, non-permanent suspensions of

spraying activity within that distance of the border beginning in 2005. From

Ecuador’s standpoint, these suspensions by Colombia: (i) constitute an implicit

acknowledgement that 10 kilometres is the appropriate width of a buffer zone

sufficient to protect Ecuador from spray drift; and (ii) show that a 10 kilometre

324
buffer zone will not cause unacceptable consequences for Colombia .

2.166 Colombia maintains that it suspended spraying operations in the border

province of Nariño (adjacent to Ecuador’s province of Esmeraldas) from 27

December 2005 to 17 December 2006, and from 15 January 2007 to the present.

In Putumayo (adjacent to Ecuador’s province of Sucumbíos), Colombia states

323
Diplomatic Note 55416/2001- GM/SOI/SSN, sent from the Ministry of Foreign Affairs of
Ecuador to the Ministry of Foreign Affairs of Colombia (2 July 2001). EM, Vol. II, Annex 41;
EM, Chap. 3, para. 3.14.

324Moreover, the 10 kilometre buffer zone has been endorsed by international observers. Soon
after the January 2007 suspension, the UN Special Rapporteur on the right of everyone to the
enjoyment of the highest attainable standard of physical and mental health applauded Colombia’s

decision. He “welcome[d] the fact that aerial spraying of coca crops in the 10-km border zone
had ceased in February 2007Ž and further welcomed the Colombian Vice President’s statements
“that manual eradication tends to be more effective than aerial sprayingŽ. Report of the Special
Rapporteur on the Right of Everyone to the Enjoyment of the Highest Attainable Standard of
Physical and Mental Health, Paul Hunt: Preliminary Note on Mission to Ecuador and Colombia,
Addendum, U.N. Doc. A/HRC/7/11/Add.3, para. 16 (4 Mar. 2007). EM, Vol. II, Annex 31.

130that it suspended spraying from 1 January 2005 to 24 September 2005, from 11

325
December 2005 to 11 December 2006 and from 22 January 2007 to the present .

Ecuador wishes that this were so.

2.167 Despite Colombia’s assurances, the flight data generated by the spray

planes and furnished to the U.S. Department of State show that aerial spraying

inside the 10 kilometre buffer zone was carried out thousands of times while the

suspensions described above were supposedly in effect. For example, paragraph

5.90 of the Counter-Memorial states that the suspensions beginning in January

2007 have been “continuously maintainedŽ 326. However, Colombia has

conducted at least 5,287 spray events within the 10 kilometre buffer zone in

Nariño province since that date. In fact, Colombia’s spray planes have deposited

at least 20,630 gallons (78,093 litres) of the spray mixture within 10 kilometres of

327
Ecuador’s border since 1 February 2007 . The total number of spray flights

during Colombia’s purported suspensions in both Nariño and Putumayo

provinces exceeds 6,046 328.

325CCM, Chaps. 5, 7 and 10, paras. 5.62-5.63, 5.67, 5.71, 5.90, 7.3, 10.9; Report by the Anti-
Narcotics Direction of the Colombian National Police (DIRAN), pp. 310-311, 8 Feb. 2010. CCM,
Vol. II, Annex 67.

326CCM, Chap. 5, para. 5.90; see also CCM, Chap. 7, para. 7.3.

327Hansman & Mena Report, op. cit., p. 13. ER, Vol. II, Annex 1. Because Ecuador does not
have the precise calendar dates associated with each spray event, these figures represent spraying
within 10 kilometres of Ecuador’s border beginning on 1 February 2007 to the present. Ibid., n. 4.

328Ibid., p. 13.

1312.168 Colombia’s misrepresentations regarding the suspension of spraying

within the 10 kilometre buffer zone do not end there. On 11 November 2010, in

response to allegations by an indigenous organization that were published by

329
several news outlets , the Colombian Ministry of Foreign Affairs issued a Press

Release that stated:

“With respect to the information published today in the
Ecuadorian newspaper La Hora regarding alleged aerial aspersions
over illicit crops in the boundary area with Colombia, the National

Government allows itself to specify:

1. Since the month of January 2006, it has strictly complied with

the matters agreed by the Ministries of Foreign Affairs of
Colombia and Ecuador on 7 December 2005 in Quito, with regard
to suspending the aspersions in the boundary area with
330
EcuadorŽ .

2.169 This statement by the Colombian Ministry of Foreign Affairs … that

spraying within the 10 kilometre buffer zone has been suspended since January

2006 … directly contradicts the Counter-Memorial, which acknowledges that the 7

December 2005 agreement made by the Colombian Minister of Foreign Affairs as

a “gesture of goodwill towards EcuadorŽ was broken by a resumption in spraying

in both Nariño and Putumayo provinces between December 2006 and January

329
“Colombia Fumigates AgainŽ, LA HORA (Quito, 11 Nov. 2010). ER, Vol. IV, Annex 93;
“Colombian Government Violates Pact and Fumigates with GlyphosateŽ, VOCES.ORG (San
Salvador, 10 Nov. 2010). ER, Vol. IV, Annex 92.
330
Republic of Colombia, Ministry of Foreign Affairs, Press Release (11 Nov. 2ER, Vol.
V, Annex 156.

132 331
2007 . In fact, the flight data show that the period between December 2006 and

January 2007 was a period of heavy spraying in the border region: a total of

22,555 spray events were conducted within 10 kilometres of Ecuador’s border 332.

As discussed in Chapter 8, these serious discrepancies between Colombia’s words

and deeds demonstrate the need for a binding Court order requiring Colombia not

333
to spray within 10 kilometres of Ecuadorian territory.

B. C OLOMBIA ’SA ERIAL SPRAYING IN CLOSE PROXIMITY TO ECUADOR S
NDIGENOUS R ESERVES

2.170 Colombia has not only sprayed within its self-described buffer zones, it

has done so in very close proximity to highly sensitive areas in Ecuador,

specifically reserves set aside to protect the vulnerable communities of the Awá

and Cofán indigenous peoples living on their traditional lands. Colombia has

done so despite its imposition of a putative no-spray zone around sensitive areas

such as these.

2.171 In November 2001, Colombia’s Environment Ministry imposed a 2,000

metre buffer zone around national parks, in view of the likelihood of harm were

331
CCM, Chap. 5, para. 5.109(6). See also ibid., Chaps. 2 and 5, paras. 2.41, 5.62, 5.71; EM,
Chap. 3, paras. 3.3, 3.53-3.54, 3.64.
332Hansman & Mena Report, op. cit., Appendix 3, p. 27. ER, Vol. II, Annex 1. Ecuador cannot

verify Colombia’s statements regarding compliance with the 10 kilometre buffer zone in
November 2010 because the data in Ecuador’s possession ends in January 2009.
333
See infra Chap. 8, paras. 8.3, 8.14-8.15, 8.19.

133 334
spraying to occur in closer proximity . The Environment Ministry explained

that it was necessary to protect such sensitive environments “given the strategic

ecosystem’s importance, as well as environmental characteristicsŽ and “based on

preventative action principleŽ 33. The Ministry further explained:

“From the functionality perspective of the eco-systems found in
the parks, it should be taken into account that their bordering

areas, more than artificial borders are borders that interrelate with
organisms (flora and fauna) and natural resources contained within
and without its borders, therefore impacts sustained by the

surrounding areas may be harmful to ecosystems, resources and
species located within the natural parks considered of value, not
336
only for the country, but also for humanityŽ .

2.172 The Ministry of Environment further observed that it “based its

determination concerning the 2000 meter security zone surrounding the Natural

National Park system on the risks associated with the drift effects of the

Glyphosate when it is sprayed over illicit crops, as well as the fragility of the eco-

systems found in these areas, and their strategic importance from a social,

337
economic and ecological standpointŽ . For Ecuador, a 2 kilometre buffer zone

is terribly insufficient, as discussed above. The point here is that even the

334Republic of Colombia, Ministry of Environment, Resolution No. 1065, art. 5(d) (26 Nov.
2001). EM, Vol. II, Annex 15. In so ruling, the Ministry rejected a 1,000 metre buffer zone that
had been proposed by the DNE.

335Republic of Colombia, Ministry of Environment, Resolution No. 108, p. 5 (31 Jan. 2002). ER,
Vol. V, Annex 141. (“As for the parks’ protected zones under the scope of the Natural National

Park system’s Special Administrative Unit, this Ministry considered a 2,000 meter long zoneŽ.)
336Republic of Colombia, Ministry of Environment, Resolution No. 108, p. 5 (31 Jan. 2002). ER,

Vol. V, Annex 141.
337Ibid.

134inadequate 2 kilometre safety zone decreed by Colombia in regard to ecologically

sensitive areas was ignored, with particular consequence for the indigenous

communities living in remote areas along the Ecuador-Colombia border.

1. Cofán-Bermejo Ecological Reserve

2.173 The Cofán-Bermejo Ecological Reserve covers 55,451 hectares of tropical

338
lowland rainforest in northeastern Ecuador along the border with Colombia . It

is managed by the Cofán people themselves, in cooperation with the Government

of Ecuador, and is intended to protect their unique cultural and biological

heritage 339. Approximately one-fourth of Ecuador’s indigenous Cofán population

… about 320 people … reside in the Cofán-Bermejo Ecological Reserve, making it

340
a critical area for the protection of this vulnerable indigenous group .

2.174 The Cofán people’s stewardship of the Reserve has caused its well-

preserved forests to retain exceptionally high levels of plant and animal

341
diversity . For example, the forest is estimated to contain upwards of 2,000

plant species, including at least 15 endemic plants (i.e., species that exist nowhere

338Balslev Report, op. cit., p. 32. ER, Vol. II, Annex 4.

339Ibid.; Norman E. Whitten, Jr., Ph.D., Dr. William T. Vickers, Ph.D. & Michael Cepek, Ph.D.,
Tropical Forest Cultural Ecology and Social Adaptation in the Ecuadorian Border Region with
Colombia, pp. 19-20 (Jan. 2011) (hereinafter “Whitten et al. ReportŽ). ER, Vol. II, Annex 5.

340Balslev Report, op. cit., p. 32. ER, Vol. II, Annex 4.

341Balslev Report, op. cit., pp. 32-33. ER, Vol. II, Annex 4; Whitten et al. Report, op. cit., pp. 19-
20. ER, Vol. II, Annex 5.

135else on earth) 342. As explained by botanical and anthropological experts

intimately familiar with the area, apart from the biological significance of these

species, many are used by the Cofán for cultural and/or medicinal purposes 343.

The Reserve is also rich in animal life; a single scientific survey conducted in

2002 recorded 399 bird species, 42 species of large mammals and 31 species of

344
amphibians and reptiles .

2.175 The spray flight data demonstrate that Colombia has frequently conducted

aerial spraying within 2 kilometres of this sensitive area. In fact, 1,021 spray

lines were recorded within 2 kilometres of the Cofán-Bermejo Reserve between

2000 and 2008 345. Within 10 kilometres of the Reserve … a more suitable safety

346
zone … Colombia sprayed more than 12,398 times during the same period .

2.176 In Chapter 3, Ecuador describes in detail how the Cofán people have been

harmed by Colombia’s spraying in areas adjacent to the Cofán-Bermejo

Reserve 347.

342
Balslev Report, op. cit., p. 33-34. ER, Vol. II, Annex 4; Whitten et al. Report, op. cit., p. 19.
ER, Vol. II, Annex 5.
343
Balslev Report, op. cit., p. 33. ER, Vol. II, Annex 4; Whitten et al. Report, op. cit., p. 22. ER,
Vol. II, Annex 5.
344
Balslev Report, op. cit., p. 34. ER, Vol. II, Annex 4.
345
Hansman & Mena Report, op. cit., p. 14. ER, Vol. II, Annex 1.
346
Ibid.
347See infra Chap. 3, Section I(B)(1): The Kichwa and Cofán of Sucumbíos.

136 2. Awá Indigenous and Forest Reserve

2.177 The Awá Indigenous and Forest Reserve▯(Reserva Étnico Forestal Awá in

Spanish) is a 120,000 hectare area located immediately adjacent to the Colombian

348
border in the Esmeraldas and Carchi Provinces of Ecuador . The Reserve is

comprised of well-conserved primary forest, including several different

ecosystems ranging from the lowland Chocó rain forest to humid mountain and

cloud forests at the highest elevations 349. The Reserve is home to approximately

3,000 indigenous Awá who depend on its forest resources for their daily

350
survival . It also harbours remarkable biodiversity, including the Brown-

Headed Spider monkey (Ateles fusciceps), the Ecuadorian Sac-Winged Bat

(Balantiopteryx infusca), Jaguar (Panthera onca), Neotropical Otter (Lontra

longicaudis), and the Spectacled Bear (Tremarctos ornatus), among the many the

animal species that inhabit the Reserve 351. As described by Whitten et al., the

region inhabited by the Awá in Ecuador on the border of Colombia “is one of the

352
richest, wettest, high biodiversity rain-forest regions of the worldŽ .

2.178 Colombia’s disregard for the 2 kilometre safety zone that its Ministry of

Environment determined was necessary to protect sensitive areas is evidenced by

348Balslev Report, op. cit., p. 29. ER, Vol. II, Annex 4.
349
Ibid.
350
Whitten et al. Report, op. cit., pp. 45, 47. ER, Vol. II, Annex 5.
351Balslev Report, op. cit., pp. 29-30. ER, Vol. II, Annex 4.

352Whitten et al. Report, op. cit., p. 45. ER, Vol. II, Annex 5.

137the flight data. Colombia sprayed 57 times within 2 kilometres of the Reserve

353
between 2000 and 2008 . Colombia also sprayed 10,913 times within 10

kilometres of the Reserve, the buffer zone which Ecuador has consistently

maintained is necessary to protect its territory, including biologically and

354
culturally sensitive areas such as the Awá Indigenous and Forest Reserve .

2.179 The harm that has been inflicted on the Awá by the spraying programme

355
is described in detail in Chapter 3.

C. C OLOMBIA ’SSPRAYING IN C LOSE PROXIMITY TO E CUADOR S N ON -
INDIGENOUS BORDER C OMMUNITIES

2.180 Ecuador’s indigenous communities are not the only ones subjected to

Colombia’s aerial spraying 2 kilometres or less from their homes, even though in

2001 Colombia enacted regulations prohibiting spraying within 2 kilometres of

human settlements. For example, Colombia sprayed 719 times between 2000 and

2008 within 2 kilometres of the Ecuadorian community of Mataje, located in

Esmeraldas Province 356.

35Hansman & Mena Report, op. cit., p. 14. ER, Vol. II, Annex 1.

35Ibid.
355
See infra Chap. 3, Section I(D)(1): The Awá of Esmeraldas.
356
Hansman & Mena Report, op. cit., p. 14. ER, Vol. II, Annex 1.

1382.181 Other Ecuadorian communities on the Colombian border have

experienced a similar intensity of spraying. For example, Colombia sprayed 174

times within 2 kilometres of the community of Puerto Mestanza, located in

357
Ecuador’s Sucumbíos Province .

2.182 It is not coincidental that the residents of Mataje and Puerto Mestanza,

like the residents of other Ecuadorian border communities in very close proximity

to where Colombia conducts aerial spraying, have experienced serious harm to

their health, crops, animals and livelihoods, as detailed in Chapter 3 358.

Section V. The Spray Mixture Reaches Ecuador in Quantities Sufficient to

Cause Serious Harm

2.183 In this section, Ecuador refutes Colombia’s core contention, which it

argues throughout the Counter-Memorial, that the spray programme cannot cause

harm in Ecuador because the spray mixture does not drift more than a few metres

359
from the target areas where it is released . The evidence overwhelmingly

contradicts Colombia’s argument. It shows that Colombia’s pervasive violations

of its own requirements to prevent spray drift have had a dramatic impact on

357
Hansman & Mena Report, op. cit., p. 14. ER, Vol. II, Annex 1.
358See infra Chap. 3, Sections I and II.

359See, e.g., CCM, Chap. 7, para. 7.3 (“[T]aking into account the scientific evidence on the
limited effect of drift and the strict technical parameters under which the spraying operations are
carried out in Colombia … including the observance of 100m exclusion strips along watercourses …

no damage could have occurred in Ecuadorian territoryŽ.). See also ibid., paras. 7.16-7.30, 7.33,
7.161.

139Ecuador. In particular, it shows the manner in which the spraying is done,

including the height at which the spray mixture is released, the aircraft speed and

application rate, the droplet size, the night time spraying, the disregard of

temperature and wind conditions, combined with the frequency with which areas

near Ecuador’s border are sprayed and the especially toxic nature of the chemical

cocktail, all assure that the spray mixture is deposited far into Ecuador in amounts

which exceed what is needed to cause harm.

A. C OLOMBIA ’SM ISREPRESENTATIONS REGARDING THE EXTENT OF SPRAY
D RIFT

2.184 Colombia has consistently represented to Ecuador and to the international

360
community, and now represents to the Court, that off-target drift from its spray

operations is minimal.

2.185 Starting in the early years of the spray programme, Colombia’s DNE … the

agency responsible for carrying out the spray operations … was warned about the

potential for significant off-target driA report issued by the Colombian

Agriculture Institute (“ICAŽ) in 1999 in response to the DNE’s draft EMP

concluded that the “permissible driftŽ reported by the DNE of less than 2 to 5

36See CCM, Chap. 7, para. 7.3. See also CCM, Chap. 7, paras. 7.93, 7.170.

140metres was “impossibleŽ given the “height and speedŽ of the spray planes 36. The

ICA further explained that the 80 percent rate of recovery reported by the DNE

was “inconsistentŽ given the “considerable speed and height of operationŽ 362.

2.186 This assessment regarding the danger of drift was confirmed by a study

dated July 2004 by Sociedad Las Palmas Ltda., a consulting firm commissioned

by the Colombian government to evaluate the drift associated with different spray

mixtures 363. The Las Palmas study concluded that an astounding 72% of the

spray mixture containing Cosmo-Flux drifted off-target 364. Indeed, the mixture

with Cosmo-Flux had the worst drift of all the mixtures that were assessed,

prompting its authors to recommend that Colombia cease using that adjuvant in

365
the spray, a recommendation that was ignored .

2.187 These warnings were not just disregarded by Colombia. DNE and

Colombia’s Ministry of Foreign Affairs communicated precisely the opposite

message to Ecuador. In a diplomatic note sent to Ecuador on 14 July 2001,

361Republic of Colombia, Ministry of Environment, Division of Environmental Licenses, Order

No. 599, p. 14 (23 Dec. 1999). ER, Vol. V, Annex 132.
362
Ibid., p. 13.
363Las Palmas Report, op. cit., pp. 4-5. ER, Vol. III, Annex 15.

364Ibid., pp. 40-41, 107. ER, Vol. III, Annex 15; see also Giles Report, op. cit., p. 46. Annex 2.

365The Las Palmas study concluded that another available adjuvant, which had the same level of
effectiveness at killing coca plants, resulted in a much lower off-target deposition of
approximately 30%. Las Palmas Report, op. cit., pp. 40-41, 104-107. Nevertheless, Colombia

persisted in using Cosmo-Flux and even claims that it is a “drift control agentŽ. See CCM, Chap.
4, paras. 4.42, 4.51-4.56.

141Colombia’s Ministry of Foreign Affairs represented that strict operational

366
parameters “guarantee a negligible drift, that is, less than 5 metersŽ .

Approximately three years later, a letter from the Director of DNE to the

Ecuadorian Scientific and Technical Commission dated 14 April 2004 repeated

these limited estimates of spray drift, stating that “maximum driftŽ is estimated to

be 12 metres 367. On 18 September 2005, Colombia made the same representation

to the IACHR, stating that the maximum extent of drift was 12 metres 368.

Colombia continued to maintain these gross misrepresentations of spray drift as

recently as 2007, claiming in a Position Statement to the Binational Scientific and

366
Diplomatic Note DM/AL No. 25009, sent from the Ministry of Foreign Affairs of Colombia to
the Ministry of Foreign Affairs of Ecuador, p. 3 (14 July 2001). EM, Vol. II, Annex 42. A
similar estimate is included in Colombia’s Environmental Management Plan issued on 30
September 2003, which states that “Foreseen DriftŽ is less than 5 metres. Resolution Nº 1054 of
30 September 2003 of the Ministry for the Environment of Colombia, p. 173. CCM, Vol. II,

Annex 50. As discussed in Chapter 4, the current version of the EMP was finally adopted by the
Ministry of Environment after a long battle with the DNE. It appears that the DNE ultimately
won.
367
Note No. SARE-142 from the Director of the National Narcotics Directorate of Colombia to
the President of the Scientific and Technical Commission of Ecuador, p. 33 (14 Apr. 2004).
CCM, Vol. II, Annex 13. As discussed in the Giles Report, this estimate was based on an overly

simplistic spray drift calculation, despite the availability of more sophisticated models such as
AGDISP since the 1980s. Colombia’s calculation took into account a mere three variables.
Worse yet, the variables … a maximum spray height of 25 metres, an average droplet size of 650
microns and a wind speed of 4.8 km/hr (1.3 m/s) … do not reflect the actual conditions of

application. Thus, the calculation presented by Colombia to Ecuador’s Scientific and Technical
Commission leads to a gross underestimation of spray drift. Giles Report, op. cit., pp. 45-46. ER,
Vol. II, Annex 2.
368
Diplomatic Note No. DDH. 58003 from the Colombian Foreign Ministry to the Executive
Secretary of the Inter-American Commission on Human Rights, p. 26, Table No. 1, 18 Sept. 2005
(indicating that the “permissible driftŽ is less than 12.3 metres). ER, Vol. V, Annex 154.

142Technical Commission that “under adverse parameters of maximum wind and

369
application altitudeŽ drift would extend 12 to 24.1 metres .

2.188 As explained below, Colombia misrepresented the extent of spray drift …

not by metres but by kilometres. In fact, an internationally-accepted spray drift

model, which is relied upon by Colombia in its Counter-Memorial … and which

has been available to Colombia since the inception of spray operations near

Ecuador’s border in 2000 … demonstrates that the amount of spray deposited as

370
far as 10 kilometres into Ecuador is more than sufficient to cause serious harm .

B. SPRAY D RIFT M ODELING

2.189 The Counter-Memorial relies upon spray drift modeling commissioned by

the Colombian and U.S. governments in 2009 purportedly to show that spray

cannot reach Ecuador. For example, it states at paragraph 7.20, in reliance on this

drift modeling, that the “effects of sprayingŽ are “negligible beyond 120 meters

even for those plants most sensitive to the spray mixtureŽ 37. This statement is

based on the results of a spray drift study conducted by Dr. Andrew Hewitt and

369Republic of Colombia, Position Statement by Colombia to the Binational Scientific and
Technical Commission in Relation to the Destruction in Colombia of Illicit Crops in the Frontier
Zones with Ecuador, p. 23 (8 June 2007). ER, Vol. V, Annex 155.

370See infra Chap. 2, paras. 2.200-2.203; Giles Report, op. cit., pp. 4, 47-48. ER, Vol. II, Annex
2; Weller Report, op. cit., pp. 17-25. ER, Vol. II, Annex 3.

371CCM, Chap. 7, para. 7.20 (citing Hewitt et al., 2009, op. cit., pp. 923, 925, 929. CCM, Vol.
III, Annex 131-B).

143colleagues, attached to Colombia’s Counter-Memorial as Annex 131-B. In his

study, Dr. Hewitt used an internationally accepted spray drift model called

AGDISP, which was “developed and validated by NASA, the U.S. Forest

Service, U.S. Army, Spray Drift Task Force, and others over several decades for

372
aerial forestry and agricultural spray applicationsŽ . He compared the results

obtained by use of that model … an estimated deposition rate in grams per hectare

of glyphosate acid equivalent (a.e.) … to dose-response thresholds for plants.

Based on this comparison, Dr. Hewitt concluded that plants more than 50 to 120

metres from the spray application site would not be exposed to a sufficient

amount of spray to be harmed 373.

2.190 Ecuador has no quarrel with the use of the AGDISP model as a useful

predictive tool. Nor does Ecuador dispute that comparing an estimated deposition

rate with known dose-response values for plants is a sound way to evaluate the

likelihood of harm to those plants. However, as described in greater detail in the

paragraphs that follow, the problem with Colombia’s modeling is that by

definition, models rely on a set of factual assumptions, and the assumptions that

374
were fed into Dr. Hewitt’s model are demonstrably wrong . They are based

entirely on Colombia’s representations, now proven to be false, that it strictly

372Hewitt et al., 2009, op. cit., p. 921 (internal citations omitted). CCM, Vol. III, Annex 131-B.
373
Ibid., p. 921, 928.
374
See infra Chap. 2, paras. 2.191-2.197; Giles Report, op. cit., pp. 9-42, 47. ER, Vol. II, Annex
2.

144complied with all operational requirements for avoiding spray drift contained in

the EMP and boasted of in the Counter-Memorial. When the false assumptions

are corrected to reflect how the aerial spray programme is actually conducted, the

model employed by Colombia actually makes Ecuador’s case: it shows that

significant amounts of the spray mixture drift long distances from the place of

release, and thus reach far into Ecuador, where they are of sufficient toxicity to

375
cause significant harm in Ecuador .

1. Flaws in Colombia’s Modeling

2.191 As indicated, the fatal flaw in Colombia’s modeling is that it assumes that

the aerial spray programme complies with its own operational requirements,

including those relating to aircraft speed and altitude. As demonstrated above,

however, these assumptions are wrong. In reality, Colombia disregards those

requirements and sprays with aircraft travelling much faster and higher than

allowed. For example, Colombia’s modeling assumes that its planes fly at speeds

376
ranging from 226 km/hr to 333 km/hr (140 to 207 mph) , but in reality, they

frequently fly much faster; speeds above 333 km/hr have been recorded for more

than 11,113 flights between 2000 and 2008 within 10 kilometres of the border

375See infra Chap. 2, paras. 2.199-2.202; Giles Report, op. cit., pp. 9-42, 47. ER, Vol. II, Annex
2; Weller Report, op. cit., pp. 17-25. ER, Vol. II, Annex 3.
376
Hewitt et al., 2009, op. cit., p. 923. CCM, Vol. III, Annex 131-B

145with Ecuador 377. As a result, the higher flight speeds disperse spray droplets that

are much smaller, and which drift much longer distances, than would otherwise

be the case 37. Likewise, despite the fact that Colombia’s modeling assumed that

the spray is released at a height of 30.48 metres 379, it is invariably released at far

higher altitudes. The data show more than 81,106 of the 114,525 spray events

(71%) within 10 kilometres of Ecuadorian territory during which the spray

mixture was released at altitudes higher than those assumed in Colombia’s drift

380 381
modeling . This, as shown, also increases the spray’s propensity to drift .

2.192 Nor is the model’s assumption about application rate accurate. Although

the EMP requires an application rate of no greater than 23.65 litres per hectare,

382
Colombia frequently exceeds that limit . Dr. Hewitt, in fact, not only

underestimated the real application rate, and thus the deposition of the spray

mixture, he even misestimated the application rate required by the EMP by a

factor of 2.2. Rather than using 23.65 as the application rate for the total tank

mix, as Colombia’s spray programme dictates, Dr. Hewitt describes his model

377Hansman & Mena Report, op. cit., p. 20. ER, Vol. II, Annex 1.

378See supra Chap. 2, para. 2.97; Hansman & Mena Report, op. cit., p. 20. ER, Vol. II, Annex 1;
Giles Report, op. cit., pp. 6-8, 20-21. ER, Vol. II, Annex 2.

379Hewitt et al., 2009, op. cit., p. 923. CCM, Vol. III, Annex 131-B.

380Hansman & Mena Report, op. cit., Appendix 3, p. 28. ER, Vol. II, Annex 1.
381
Giles Report, op. cit., pp. 16-20. ER, Vol. II, Annex 2.
382
See supra Chap. 2, paras. 2.140-2.141; Hansman & Mena Report, op. cit., p. 23. ER, Vol. II,
Annex 1.

146input for the spray volume rate as “10.4 L/ha (1.11 gallon/acre) total tank mix for

383
coca spraysŽ , i.e., less than half of the maximum allowable rate under the EMP.

2.193 These errors are compounded by another serious flaw: inexplicably,

Colombia’s modeling assumes that the spray planes carry out only one line of

aerial spraying. In fact, the flight data recorded by the spray planes and obtained

from the U.S. Department of State demonstrate that the spray is released in

numerous tightly packed parallel lines 38. Figure 2.11 is a representative sample

of an area sprayed adjacent to Ecuador’s Sucumbíos Province in September 2002;

the two inset boxes show magnified views of 1 square kilometre areas where

Colombia sprayed. As the Court can see, there were over 20 parallel spray lines

in those areas alone. The chemical spray from each individual line drifts and

contributes to deposition in Ecuador 385. This is depicted by Figure 2.12, which

illustrates the cumulative deposition downwind of increasing numbers of spray

lines: two spray lines deposit nearly twice as much herbicide as a single spray

line; three lines deposit almost triple the amount; and ten lines result in close to a

ten-fold increase in deposition. When one considers the large number of parallel

383
Hewitt et al., 2009, op. cit., p. 923. CCM, Vol. III, Annex 131-B; see also Giles Report, op.
cit., pp. 24-25. ER, Vol. II, Annex 2.
384
Hansman & Mena Report, op. cit., p. 29. ER, Vol. II, Annex 1.
385
Giles Report, op. cit., p. 9 (“Many aerial spraying operations, including those conducted in
Colombia, involve multiple parallel flights to cover the target area. Physically and analytically,
each flight is an independent event, i.e., the aircraft wake and the droplets released from one pass
dissipate and do not affect the motion of droplets from subsequent passes. Therefore, the total
spray deposition at any point downwind from multiple passes is an accumulation of the spray
deposition from each individual spray passŽ.) (internal citation omitted). ER, Vol. II, Annex 2.

147 0°30'0"N

km

River Figure 2.11

Putumayo

! Palma Seca

0.5 Km
River

San MiChone 2
76°30'0"W ! Chone 1 76°30'0"W
!
!
0 5 10 15 20 25
! Playeratal
C O L O M B I A 0 1

±
Puertoo

P u t u m a y o

Cor5 de Agosto
Puert! MestaUnion Lojana
Puerto Escondido
! !
!
! !
Monterrey S u c u m b í o s
! E C U A D O R

Dios Peña
! SaMarianitaarapa

0.5 Km ! !

San Miguel

General
!
La Condor
! !
!

0 1 10 de Agosto
!

! San SFarannFcrisacnoci2sco 1

77°0'0"W Salinas 77°0'0"W
Border During a Single Month (September 2002) Virgen del Cisne

Density of Parallel Spray Lines Within 10 Kilometres of Ecuador’s

Peru

River
San Miguel Colombia

Protected areas from international boundary

Ecuador

Legend
N a r i ñ o
Cofán Reserve

0°30'0"N Figure 2.12
WIND

0 km 1 km 2 km 3 km 5 km 10 km

WIND

0 km 1 km 2 km 3 km 5 km 10 km

WIND

2 Spray Lines 3 Spray Lines 10 Spray Lines

0 km 1 km 2 km 3 km 5 km
10 km

Cumulative Impact of Drift From Multiple Spray Lines

WIND

1 Spray Line

(Colombia’s Assumption)

0 km 1 km 2 km 3 km 5 km 10 kmlines depicted on the map in Figure 2.11 (over 20 lines in the inset boxes alone)

the multiplicative effect of Colombia’s spraying practices can be readily

appreciated.

2.194 Nevertheless, Colombia’s modeling only accounts for a single spray line,

ignoring the dozens more that were frequently sprayed. As a result, it

significantly underestimates the amount of spray deposited downwind 386. Indeed,

it is particularly odd that the Hewitt report commissioned by Colombia fails to

take account of the impact of multiple spray lines since the AGDISP model he

used includes a feature designed to calculate the effect of multiple spray lines 387.

Dr. Hewitt apparently chose not to apply this feature or otherwise account for the

multiple spray lines that regularly characterised Colombia’s spray operations.

This is all the more remarkable since previous studies authored by Dr. Hewitt

388
have taken into account the effect of multiple spray lines .

2.195 Further undermining the accuracy of Colombia’s modeling: its exposure

analysis fails to consider the fact that the spray mixture used by Colombia

includes Cosmo-Flux, a powerful chemical that is added to increase the spray’s

386Ibid. (“Using only a single pass to determine drift deposition when multiple passes were made

will significantly underestimate deposition from spray driftŽ.).
387Ibid.

388See, e.g., A. J. Hewitt et al., “Development of the Spray Drift Task Force Database for Aerial
ApplicationsŽ, Environmental Toxicology and Chemistry, Vol. 21, No. 3, pp. 648-658 (2002)
(“four parallel spray swaths (flight line passes) . . . were used in the aerial studiesŽ). ER, Vol. III,

Annex 12.

148lethality389. As detailed in paragraph 5.21 of the Memorial, the manufacturer of

Cosmo-Flux reports that it increases the killing-power of the spray mixture by a

factor of four 390. This four-fold increase in efficacy has also been reported in the

study commissioned by the U.S. government that led to Colombia’s selection of

391
Cosmo-Flux for inclusion in the spray mixture . However, in assessing whether

the amount of spray deposited downwind due to spray drift is sufficient to cause

harm to plants, Colombia’s modeling considers only the toxicity supplied by the

glyphosate element of the spray mixture, and fails to take account of the vastly

392
increased toxicity caused by the addition of Cosmo-Flux .

2.196 These are not the only flaws in Colombia’s modeling. Dr. Hewitt

concludes that the level of damage to plants becomes unacceptable when more

than 43 g/ha of spray is deposited because, in his estimation, 5 percent of plant

389See supra Chap. 2, paras. 2.55-2.56; Weller Report, op. cit., p. 7-8, 15-16. ER, Vol. II, Annex
3.

390Cosmoagro, S.A., Cosmo-Flux 411F. EM, Vol. III, Annex 112.

391Ronald T. Collins & Charles S. Helling, Surfactant-Enhanced Control of Two Erythroxylum
Species by Glyphosate, Weed Technology, Vol. 16, p. 851 (2002). EM, Vol. III, Annex 141

(reporting that two glyphosate-surfactant systems tested “increased glyphosate toxicity fourfoldŽ);
Chemicals Used, op. cit., p. 2 (explaining that Cosmo-Flux was selected because it “most closely
matched the most effective U.S. productsŽ that had been tested by Collins & Helling). EM, Vol.
III, Annex 144; CCM, Chap. 4, para. 4.53 (explaining the “Colombia chose the adjuvant
Cosmoflux 411FŽ as a result of the Collins & Helling study). See also Dobson Report, op. cit., p.

538. CCM, Vol. I, Appendix; Weller Report, op. cit., p. 15-16. ER, Vol. II, Annex 3; Menzie &
Booth Report, op. cit., p. 24-25. ER, Vol. II, Annex 6.
392
Hewitt et al., 2009, op. cit., p. 923. CCM, Vol. III, Annex 131-B; Weller Report, op. cit., pp.
15-16. ER, Vol. II, Annex 3.

149species would be harmed 393. But that 43 g/ha threshold is based on an artificial

selection of plant species. Dr. Hewitt only considers dose-response values for a

selection of hardy Northern Hemisphere crops, including turnips, radishes, beets

and oats, the majority of which are not typically grown in tropical locations like

394
the Ecuador-Colombia border region . Indeed, he considers a very limited

number plants that are representative of tropical agriculture, let alone of the

395
endangered plant species endemic to the Ecuador-Colombia border region .

2.197 The extent to which Dr. Hewitt underestimates the risk of harm in the

Ecuador-Colombia border region is made clear when his 43 g/ha value … the

threshold at which he says harm to plants would become unacceptable … is

compared with the conclusions of other published studies on plant injury caused

by glyphosate. For example, a study sponsored by the Danish Environmental

Protection Agency and Environment Canada by Boutin et al. derived a much

lower value for protecting plant species 396. Instead of 43 g/ha (the level arrived at

393Hewitt et al., 2009, op. cit., pp. 926-928, Table 3. CCM, Vol. III, Annex 131-B; see also
Weller Report, op. cit., pp. 13-14. ER, Vol. II, Annex 3.

394Hewitt et al., 2009, op. cit., p. 927, Table 2. CCM, Vol. III, Annex 131-B; see also Weller
Report, op. cit., pp. 13-14. ER, Vol. II, Annex 3.

395Weller Report, op. cit., pp. 13-14. ER, Vol. II, Annex 3; Balslev Report, op. cit., pp. 5-24, 28.
ER, Vol. II, Annex 4; Whitten et al. Report, op. cit., pp. 10, 19-22, 28-31, 34-37, 40, 47-48, 50.
ER, Vol. II, Annex 5. Leaving aside the methodological flaws highlighted above, the notion that a

5 percent plant injury level is acceptable is a normative judgment which Colombia is not entitled
to make on behalf of Ecuador.
396
Weller Report, op. cit., p. 14. ER, Vol. II, Annex 3 (citing C. N. Boutin, C. Elmegaard and C.
Kjaer, “Toxicity Testing of Fifteen Non-crop Plant Species with Six Herbicides in a Greenhouse
Experiment: Implications for Risk AssessmentŽ, in Ecotoxicology. 13:349…369 (2004)). ER, Vol.
III, Annex 13.

150by Dr. Hewitt) the threshold calculated by the Boutin et al. study was over 90

percent lower: 4.1 g/ha. Moreover, the Boutin et al. study is consistent with other

evaluations of plants injury caused by glyphosate-based products, which conclude

that exposure to significantly less than 43 g/ha can harm plants 397. For example,

corn (maize), which is commonly grown in the Ecuador-Colombia border

region 398, has been shown to be injured by glyphosate at doses as small as 26.25 g

a.e./ha 399, which is 38 percent lower than the threshold Hewitt et al. (2009) stated

was sufficient to guard against harm to “sensitiveŽ plant species 400. Indeed,

tomatoes that are exposed to a mere 3 g/ha of glyphosate exhibit a loss of flowers,

401
which leads to loss of fruits . The discrepancy between Colombia’s view of an

acceptable threshold and those calculated by others is all the more noteworthy

since none of these other studies take into account the effect of Cosmo-Flux,

402
which effectively reduces the threshold for plant injury by a factor of four .

397Weller Report, op. cit., p. 14. ER, Vol. II, Annex 3.

398Whitten et al. Report, op. cit., pp. 3, 10, 21, 28, 31, 36-38, 40, 47, 50. ER, Vol. II, Annex 5

399Weller Report, op. cit., p. 14. ER, Vol. II, Annex 3.
400
Hewitt et al., 2009, op. cit., pp. 926-928, Table 3. CCM, Vol. III, Annex 131-B; Weller
Report, op. cit., p. 14. ER, Vol. II, Annex 3.
401
Ibid.
402
See supra Chap. 2, para. 2.56; Weller Report, op. cit., pp. 15-16. ER, Vol. II, Annex 3.
Moreover, the studies did not take into account the risk to sensitive plant species in Ecuador’s
border region, which is home to thousands of plant species, many of them endemic to the region
or threatened with extinction. Weller Report, op. cit., p. 14. ER, Vol. II, Annex 3; Balslev

Report, op. cit., pp. 5-24. ER, Vol. II, Annex 4.

151 2. Corrected Modeling

2.198 As shown in the preceding paragraphs, the modeling done by Colombia is

flawed by its reliance upon demonstrably false data. When the same AGDISP

model used by Colombia is run using inputs that reflect the actual data, the results

change dramatically and show that the spray mixture is deposited far into Ecuador

… including at least 10 kilometres from the site of application … in amounts

sufficient to cause harm 403. As depicted in Figures 2.13 and 2.14, this

encompasses all of the locations in the Ecuadorian Provinces of Sucumbíos and

404
Esmeraldas that have been harmed .

2.199 For example, at just one kilometre from the site of application, running the

model with median values from the flight path data obtained from the U.S.

th
Department of State, i.e., the 50 percentile value for flight speed (171.20 mph or

th
275.52 km/hr) and the 50 percentile value for altitude (40.61 metres) for the AT-

405
802 aircraft (the spray plane that Colombia admits to using) , yields 4.91 g/ha of

deposition 406. That single line, by itself, deposits at that distance more herbicide

than the Danish and Canadian study (Boutin et al. 2004) concluded can injure

403See infra Chap. 2, paras. 2.198-2.201. The AGDISP drift modeling runs are presented in the

Giles Report (ER, Vol. II, Annex 2); the inputs for each drift modeling run are provided on a data
CD deposited with the Registry.
404
See infra Chap. 3, Section I.
405Hansman & Mena Report, op. cit., p. 25. ER, Vol. II, Annex 1.

406Giles Report, op. cit., p. 13, Table 4. ER, Vol. II, Annex 2.

152 407
plants (4.1 g/ha) . When the increased killing-power caused by Cosmo-Flux is

taken into account, this deposition has the lethality equal to an effective dose of

19.64 g/ha 408. Thus, a plane flying at the median speed and median height that

sprays only one line of herbicide will cause to be deposited a kilometre away an

amount of spray that is nearly five times the amount necessary to kill or injure

plants 409.

2.200 But the situation is actually much worse, because the spray planes do not

just release a single line of the spray mixture, as Colombia’s drift modeling

410
wrongly assumed . Colombia’s failure to account for multiple spray lines

changes the results, significant as they already are, dramatically. For example, if

th th
there are 3 spray lines each at the 50 percentile for speed and the 50 percentile

for height … an extremely conservative approach given the dozens of parallel lines

that characterise Colombia’s spraying practices … the effective deposition, taking

into account the effect of Cosmo-Flux, at 1 kilometre is 57.08 g/ha 411. That is

roughly 25 percent more than the amount that even Colombia concedes causes an

unacceptably high level of damage 412. The effective deposition from 10 spray

407Weller Report, op. cit., p. 18. ER, Vol. II, Annex 3.

408Ibid.
409
Ibid.
410
Hansman & Mena Report, op. cit., p. 29. ER, Vol. II, Annex 1; Giles Report, op. cit., pp. 9,
34-40. ER, Vol. II, Annex 2.
411
Weller Report, op. cit., p. 18. ER, Vol. II, Annex 3.
412
Ibid.

153 0°30'0"N

km

River Figure 2.13

Putumayo

! Palma Seca

River

San Miguel
76°30'0"W ! Chone Chone 1 76°30'0"W
!
!

Playeratal 0 5 10 15 20 25
!

±
Puertoo

Corazón Orense
Puert! Mestanzagosto
Puerto EscondidoLojana
! !

C O L O M BP u t u m a y o !
!! S u c u m b í o s
Monterrey
! E C U A D O R
Dios Peña
! Santa La Charapa
Marianita
! !

San Miguel

Farfán
Province (2000 - 2008) General
!
0-1 k-2 k-3 k-5 k-7 k7-10 km La Condor
! !
!

10 de Agosto
!
Distance from nearest

! San SFarannFcrisacnoci2sco 1

77°0'0"W 77°0'0"W
Salinas Virgen del Cisne

Distance From Spray Events Adjacent To Ecuador’s Sucumbíos

Peru
River

San Miguel Colombia
Spray eventsternational boundary
Protected ar1e0aksm from international boundary

Ecuador

Legend

N a r i ñ o
Cofán Reserve

0°30'0"N 1°30'0"N 1°15'0"N 1°0'0"N

0-1 -2 -3 k-5 -7 k-10 km

Figure 2.14
78°15'0"W km 78°15'0"W

Distasperafnen(re)st

Protected areasfrom international boundary

Legend

C a r c h i

River 0 5 10 15 20 25
78°30'0"W 78°30'0"W
Awá Reserve
±
San !uan
N a r i ñ o

Mataje Alto

C O L O M B I A
Guadualito
River !

Mataje

!

78°45'0"W Mataje 78°45'0"W
Province (2000 - 2008) Awá Reserve

H

San Lorenzo E s m e r a l d a s

E C U A D O R

Cayapas-Mataje

Distance From Spray Events Adjacent To Ecuador’s Esmeraldas

79°0'0"W Peru 79°0'0"W
Colombia

Ecuador

1°30'0"N 1°15'0"N 1°0'0"Nlines … a more accurate but still conservative assumption given how many parallel

lines Colombia normally sprays … is 163.80 g/ha, nearly four times the amount

that Colombia acknowledges is unacceptable 41. It is also nearly 40 times the

threshold calculated by Boutin et al.; 55 times the amount needed to damage

tomato plants; and six times the amount sufficient to injure maize.

2.201 The flight data show that Colombia frequently sprays in a manner than is

much worse than assumed in the preceding paragraphs, which presumed speed

and height were at the median (50 thpercentile) of flights documented in the data.

Consider what happens for a flight by an OV-10 aircraft (responsible for 20,251

spray events within 10 kilometres of Ecuador’s border between 2000 and 2008 414)

th th
operated at the 90 percentile of speed (207.50 mph or 333.94 km/hr) and 90

415
percentile for altitude (42.56 metres) . A single line of spray results in an

416
effective deposition of 54.24 g/ha at 1 kilometre from the application site . This

exceeds the amount that Colombia concedes would injure plants (43 g/ha) and is

over 13 times more spray than the amount that Boutin et al. (2004) determined is

417
enough to cause injury . More concretely, it is twice the amount needed to

413
Ibid.
414Hansman & Mena Report, op. cit., Appendix 3, p. 25. ER, Vol. II, Annex 1.

415Ibid., p. 25.

416Weller Report, op. cit., p. 20. ER, Vol. II, Annex 3.
417
Ibid., p. 18.

154injure maize, and is over 18 times the amount of spray needed to injure tomato

plants 418.

2.202 Thus, Colombia’s spraying sends into Ecuador enough of the spray

mixture to cause serious injury. To be sure, the amount of spray reaching deeper

into Ecuador is less than the amount falling just inside it; but inserting the correct

inputs into Colombia’s model demonstrates that the levels of spray reaching

points 10 kilometres from the application site is still sufficiently toxic to cause

significant harm. For example, four spray lines from an AT-802 aircraft flown at

th th
the 50 percentile for height and 50 percentile for speed will result in an

effective dose of 4.32 g/ha of spray 10 kilometres away, which exceeds the 4.1

419
g/ha threshold for harm derived by Boutin et al. . It would take only two spray

lines from an OV-10 aircraft operating at the 90 thpercentile for height and the

90 percentile for speed to deposit an effective dose at 10 kilometres that exceeds

the same plant injury threshold 420. These are conservative assumptions. Since

dozens of spray lines were routinely documented, the amount of spray deposited

10 kilometres downwind into Ecuador, in actuality, is correspondingly more, and

421
well exceeds the amount necessary to cause significant harm . In that regard,

418Ibid., pp. 14, 20.

419Ibid., pp. 18-19.

420Ibid., pp. 19-20.
421
Hansman & Mena Report, op. cit., p. 29. ER, Vol. II, Annex 1; Giles Report, op. cit., pp. 9,
34-40. ER, Vol. II, Annex 2; Weller Report, op. cit., pp. 17-18. ER, Vol. II, Annex 3.

155using the same example as above (an AT-802 aircraft flying at the 50th percentile

for height and the 50th percentile for speed) but with 10 spray lines (a much more

realistic scenario, according to the flight data or than as hypothesized above) the

deposition of herbicide 10 kilometres from the site of the spraying would be more

than two-and-a-half times the level necessary to harm plants 422.

2.203 As would be expected, the amount of herbicide that is deposited at

distances between one and 10 kilometres is also sufficient to cause serious injury

to plants, including food crops. For example, at 5 kilometres from the site of

release, enough herbicide is deposited (an effective dose of 7.24 g/ha) from only

two lines of spray from an AT-802 flying at the 50 thpercentile for speed and the

th
50 percentile for height, to exceed the threshold for unacceptable damage

423
established by Boutin et al. . Indeed, only a single spray line flown by an OV-

th
10 at the 90 percentiles for speed and height deposits at 5 kilometres downwind

424
an effective dose (5.92 g/ha) that exceeds the Boutin et al. threshold . And it

would take only 8 spray lines from an AT-802 flying at the 50 th percentiles for

speed and height … a conservative scenario given the much higher number of

spray lines routinely flown by Colombia … to deposit an effective dose of 27.44

422Giles Report, p. 36, Table 20. ER, Vol. II, Annex 2. Weller Report, pp. 13-18. ER, Vol. II,
Annex 3.

423Giles Report, p. 36, Table 20. ER, Vol. II, Annex 2; Weller Report, pp. 13-18. ER, Vol. II,
Annex 3.

424Giles Report, p. 39, Table 24. ER, Vol. II, Annex 2; Weller Report, pp. 13-18. ER, Vol. II,
Annex 3.

156g/ha. That is more than the amount that injures maize and 9 times the level

needed to harm tomato plants 425.

Conclusion

2.204 In sum, Colombia’s use of highly toxic herbicides and other dangerous

chemicals (the formulae for which it still keeps hidden), its pervasive violation of

its own operational parameters necessary to control spray drift (on literally tens of

thousands of occasions), and its spraying in close proximity to Ecuador, including

immediately adjacent to human settlements and environmentally sensitive areas,

have ensured that the spray drifts into, and causes damage to people, plants and

425
Giles Report, p. 36, Table 20. ER, Vol. II, Annex 2. Weller Report, pp. 13-18. ER, Vol. II,
Annex 3. Depending on other factors, the deposition could be even higher still. For example, the
paragraphs above assume, as Hewitt et al. did, compliance with the EMP’s wind speed
requirement of 5 knots (2.57 m/s). Hewitt et al., 2009, op. cit., pp. 923. CCM, Vol. III, Annex

131-B; Giles Report, op. cit., pp. 28-29. ER, Vol. II, Annex 2. Stronger wind translates into
greater drift. Giles Report, op. cit., pp. 28-29. ER, Vol. II, Annex 2. Hewitt et al., also assume
favourable atmospheric conditions and the absence of thermal inversions, both of which are not
always the case, particularly since Colombia frequently sprays at night when unfavourable
conditions, including thermal inversions, are common. Giles Report, op. cit., pp. 27-28, 42-44.

ER, Vol. II, Annex 2; Hansman & Mena Report, op. cit., p. 23, n.9. Another important factor that
influences spray drift is the canopy height of the vegetation below the spray planes, which can
intercept spray droplets as they travel through the air. Giles Report, op. cit., p. 23. ER, Vol. II,
Annex 2. The preceding paragraphs assumed, in line with Hewitt et al., a canopy of 25.91 metres.

Hewitt et al., 2009, op. cit., p. 923. CCM, Vol. III, Annex 131-B; see also Giles Report, op. cit.,
p. 23. ER, Vol. II, Annex 2. But large parts on the Colombian side of the border have been
cleared. See e.g., EM, Chaps. 5 and 6, paras. 5.93, 6.40; CCM, Chap. 1, para. 1.38; Solomon et
al., 2005, op. cit., p. 19, Figure 9. CCM, Vol. III, Annex 116. Consequently, there would be
significantly more drift. Giles Report, op. cit., p. 23. ER, Vol. II, Annex 2. Nor does the

modeling described above account for the fact that by the time the droplets reach Ecuador they
have an extremely high concentration of glyphosate and surfactant due to the evaporation of their
water content. Since “[t]he concentration of the spray droplet is a driving force for absorption into
the leafŽ, the “higher glyphosate concentration in the spray droplet increases plant susceptibility to
injuryŽ. Weller Report, op. cit., p. 22. ER, Vol. II, Annex 3. The likelihood of substantial injury

is exacerbated even further due to the high humidity in the region, which makes it easier for the
herbicide to penetrate plants. Weller Report, op. cit., p. 21. ER, Vol. II, Annex 3.

157livestock in, Ecuador. Colombia’s own drift model, when the actual data

generated by the spray planes is inputted, proves this conclusively. In the

following Chapter, Ecuador describes the specific harms that have been caused by

Colombia’s aerial spraying operations along and near the border between the two

States.

158 CHAPTER 3.

THE EVIDENCE OF HARM IN ECUADOR3.1 In the previous Chapter, Ecuador showed that Colombia blatantly

misrepresents: (i) the “harmlessnessŽ of its aerial spray mixture (the full contents

of which still remain undisclosed, but which is proven to harm human skin, eyes,

and respiratory and digestive systems, and to kill all plants it comes in contact

with); and (ii) its “strict complianceŽ with operational requirements that prevent

spray drifting into Ecuador (but which Colombia violated tens of thousands of

times in spray flights along and near enough to the border so that the spray was

bound to reach Ecuador). The flight data automatically recorded by the spray

planes, and furnished to the governments of Colombia and the United States,

along with other official Colombian and U.S. Government reports, unmask

Colombia’s false presentations about the contents of the spray mixture and the

execution of the spraying programme. The data show tens of thousands of spray

flights in close proximity to Ecuador’s border that violated all of Colombia’s

operational requirements for preventing spray drift, which made it inevitable that

the spray would drift into Ecuador in sufficient quantities to harm people and

livestock, kill crops and other lawful plants, and damage the pristine forests,

fields, rivers and streams that make up Ecuador’s unique and diverse natural

environment.

3.2 In its Memorial, Ecuador showed in Chapter 5 the actual harms caused by

spray drift from Colombia’s nearby aerial spraying operations to people, animals,

crops and the environment in Sucumbíos and Esmeraldas Provinces, within 10

161kilometres of the border with Colombia. The evidence is extensive, and comes

from many different sources, all of which corroborate one another. The flight

data that Ecuador subsequently obtained from the U.S. Department of State

provides more corroboration of the harms caused by Colombia’s aerial spraying

programme, because it establishes not only the likelihood but the inevitability of

harm in Ecuador by the reckless and irresponsible manner in which the spray

programme was carried out, which guaranteed that substantial quantities of toxic

spray … sufficient to kill plants deep inside Ecuador … would drift across the

border.

3.3 In this Chapter of the Reply, Ecuador responds to the Counter-Memorial’s

critique of the evidence of harm the sprayings have caused in Ecuador, presented

in the Memorial. As Ecuador will demonstrate, the rebuttal Colombia makes

does nothing to undermine the proof presented in the Memorial. Given the

carelessness with which the sprayings are conducted, spray drift across the border

and resulting harm to people, animals and plants in the border regions abutting

Colombia’s Nariño and Putumayo Provinces is inevitable.

3.4 As shown within, much of Colombia’s effort to refute Ecuador’s showing

of harm is circular. Throughout its analysis of Ecuador’s evidence, Colombia

contends that the sprayings could not have caused the damage Ecuador claims

162because the spray is incapable of causing that damage 42. This argument, of

course, neatly assumes its own conclusion. In truth, as set forth more fully in

Chapter 2, most, if not all, of the harms identified by Ecuador are fully consistent

with the known effects of the admitted components of the spray mixture, and

predictable based on the amount of spray that is deposited in Ecuador, even

without allowing for the toxic effects of the unknown ingredients.

3.5 To the extent the Counter-Memorial does more than assume what it

purports to be showing, Colombia’s main line of attack is to question the

credibility of the eyewitness statements Ecuador presented as one element of its

proof to substantiate the harms caused. According to Colombia, these 38

different witness testimonies (plus nine more from Colombian witnesses) are

entitled to “no weightŽ because they are allegedly uncorroborated by other

sources of evidence 427. Beyond misunderstanding the Court’s jurisprudence on

the subject of witness statements (as discussed in Section II below), Colombia’s

argument is factually incorrect. In the pages to follow, Ecuador will show that

the credibility and reliability of its witness statements are verified by multiple

additional sources of evidence, much of it contemporaneous to the events in

question, and some of it emanating from organs of the Colombian government

426
See, e.g., Counter-Memorial of Colombia, Vol. I, Chap. 7, paras. 7.5, 7.137 (29 Mar. 2010)
(hereinafter “CCMŽ) (“ƒ taking into account the scientific evidence on the limited effect of drift
and the strict technical parameters under which the spraying operations are carried out in
Colombia ƒ no damage could have occurred in Ecuadorian territoryŽ.).
427
CCM, Chap. 7, para. 7.127.

163itself. What emerges is a consistent and coherent pattern of harm that is

consistent in all material respects from year to year and place to place. It is

precisely this coherence and consistency that, in Ecuador’s view, constitutes the

most compelling evidence of the harms Colombia’s sprayings have inflicted on

Ecuador.

3.6 The flight data Ecuador has obtained from the U.S. Government constitute

a key new element in this already sizable bundle of mutually reinforcing and

corroborative evidence. The data provide compelling proof of what Ecuador has

long contended: Colombia has conducted tens of thousands of spray operations

along the border with Ecuador since 2000 without regard for the operational

requirements necessary to prevent spray drift into Ecuador; indeed, in most of

these cases, the safety limits were exceeded by extremely large margins. As will

be discussed and demonstrated graphically in the sections to follow, the flight

data obtained from the U.S. Department of State underscore the connection

between the aerial sprayings and the harms demonstrated in Ecuador’s Memorial.

3.7 In short, when there were sprayings near the border, there was harm. The

consistency between the flight data and Ecuador’s evidence of harm strongly

underscores the reliability of Ecuador’s evidence, precisely because the

information contained in those data is entirely new to Ecuador. Never before had

Ecuador had such detailed information about the dates and locations of spray

164events. As detailed in the Memorial, Colombia never gave Ecuador advance

428
notice of the dates and locations of spray events , and the indigenous people and

campesinos who provided witness statements certainly were not given notice by

Colombia. Even so, the facts show tight congruity between the flight data and

Ecuador’s other evidence. As discussed in the paragraphs to follow, the data

Ecuador received from the United States substantially coincide in temporal and

geographic terms with the evidence of harm presented in the Memorial. In other

words, thanks to this reliable new evidence from a third State, there is now

definitive proof that the harms in Ecuador described in the Memorial occurred in

the wake of nearby aerial sprayings by Colombia. This is compelling new

corroboration of the eyewitness accounts Ecuador has provided.

3.8 This Chapter is presented in the following manner: Section I examines

the mutually corroborating evidence of harm in Ecuador, focusing on the

correspondence between the information the flight data reveal about the dates and

locations of sprayings and the evidence Ecuador has previously introduced … in

the form of witness statements, contemporaneous observation mission reports,

newspaper articles, scientific studies of the chemicals used and their labels, as

well as Colombia’s own reports and flight path data. Where pertinent, Ecuador

supplements the evidentiary record with still other information demonstrating the

428See Memorial of Ecuador, Vol. I, Chap. 3, paras. 3.2-3.3, 3.17, 3.21, 3.25, 3.46 (28 Apr. 2009)
(hereinafter “EMŽ).

165existence of the harms alleged at the times and places spraying occurred. Section

II reviews the evidentiary standards concerning witness statements,

demonstrating Colombia’s misunderstanding of the evidentiary value accorded to

these testimonies. Section III further corroborates the evidence of harm in

Ecuador by looking at the evidence of the same harms found in Colombia.

Notably, much of this evidence comes from the Colombian government itself. As

shown, the same types of harms in Ecuador that Colombia tries so assiduously to

separate from the border sprayings have also systematically been inflicted on the

Colombian areas sprayed by the same planes with the same chemical cocktail.

Put simply, the same causes produce the same effects, in both countries.

Section I. The Mutually Corroborating Evidence of Harm in Ecuador

A. S UCUMBÍOS 2001

3.9 The Court will recall that reports of harm first emanated from Ecuador’s

remote border regions of Sucumbíos Province at the very end of 2000 and early

2001 42. The flight path data confirm this aspect of the timeline. Figure 3.1

depicts the location of spray flights within 10 kilometres of the Ecuador-

Colombia border, along Sucumbíos Province, during December 2000 and

February 2001. Flights in December 2000 are indicated in brown; flights in

January 2001 are indicated in purple; flights in February 2001 are indicated in

42See EM, Chap. 6, paras. 6.4 et seq.

166orange. According to these data, Colombia conducted at least 3,276 spray flights

within 10 kilometres of Ecuador in December 2000 and 8,228 more in January

430
2001 .

3.10 The proximity of the sprayings to the Sucumbíos communities discussed

in Ecuador’s Memorial, including Salinas, Puerto Escondido, Puerto Mestanza,

Corazón Orense and San Francisco 1 and 2 (the locations of which are indicated

on the map) is evident, and needs no further comment here. Given (a) this

proximity, and (b) the substantial drift predicted by Colombia’s own drift model

(corrected only for the true flight parameters, as discussed in the previous

431
Chapter ), it is not surprising that many Ecuadorian residents of the border

region report seeing Colombian aircraft conducting spray operations at this time,

followed in their wakes by the deposit of what witness after witness described as

a white, foul-smelling mist falling on Ecuadorian territory.

3.11 Witness 5, a resident of Salinas, a community less than 1 kilometre from

the spraying, offers a typical description. He states:

“I remember that in 2001 I was working on my farm, which is
located near the San Miguel River, and I saw three white planes
protected by helicopters flying over Salinas. The planes left

behind a white cloud of smoke that had a sour chemical-like odor.

430See R. John Hansman, Ph.D. & Carlos F. Mena, Ph.D., Analysis of Aerial Eradication Spray
Events in the Vicinity of the Border Between Colombia and Ecuador from 2000 to 2008 (Jan.
2011), Appendix 3: Statistics, p. 28. ER, Vol. II, Annex 1.

431See supra Chap. 2, paras. 2.189-2.203.

167 0°30'0"N

km

Figure 3.1

0-1 k1m-2m-3 k3m-m-7 k7m-10 km River

spray line (km) Putumayo

Distance from nearest
Palma Seca
!

River
San Miguel
Chone 2Chone 1
76°30'0"W ! ! 76°30'0"W
!

Oriental 0 5 10 15 20 25
! Playera

±
Puerto

Cora5 de Agosto
Puerto!MestanUnion Lojana
Puerto Escondido
! !
P u t u m a y o !
!!
Monterrey S u c u m b í o s
! E C U A D O R
C O L O M B I A
Dios Peña
! SaMarianitaarapa

! !

San Miguel

Generaln
!

(December 2000 - February 2001) ! ! La Condor
!
December, 20002001 2001

! 10 de Agosto

Spray events (month)
!
San SFarannFcrisacnoci2sco 1

77°0'0"W Salinas 77°0'0"W
Virgen del Cisne

Spray Events Within 10 Kilometres of Ecuador’s Sucumbíos Province

Peru

River
San Miguel Colombia

Protected areasm international boundary

Ecuador
Legend

Cofán Reserve

0°30'0"N This odor could be felt in both the air and in the water we
432
consumedŽ .

He then recounts what happened afterwards:

“About four days after the fumigations, my body ached all over

and my skin itched. I had bumps on my skin that lasted for about a
month and a half . . . . A week after, the coffee began to lose its
flowers, the leaves started to turn yellow and then they turned

black, drying up completely. The cacao also turned yellow and,
when it was cut, one could see inside that the cacao seeds had
rotted. The grass turned a yellowish color that began at the top
433
and moved down to the rootsŽ .

3.12 Similar testimony comes from Witness 4, also a long-time resident of

Salinas, who states that:

“In the year two thousand and one, I remember having seen two

planes followed by helicopters which passed by slowly, several
times a day, above our community dropping something like a mist.
I was working on the farm and I could see them crossing the San

Miguel River and going from one side of the border to the other.
Since I did not know what this was all about and I thought the mist
was not bad, I continued working on the farm while the planes
434
sprayed over me and my children who were playing outsideŽ .

Like Witness 5, she testifies:

“A few days after the spraying, the plants started to turn yellow
and then they turned black and died. I had never experienced
anything like that. I tried to save the crop with fertilizers but it did

not work and we lost everything. Two weeks after the first
spraying, my family and I got bumps all over the body, we had an

432Declaration of Witness 5, 16 Jan. 2009 (hereinafter “Witness 5 DeclarationŽ). EM, Vol. IV,
Annex 193.

433Witness 5 Declaration, op. cit. EM, Vol. IV, Annex 193.
434
Declaration of Witness 4, 22 Dec. 2008 (hereinafter “Witness 4 DeclarationŽ). EM, Vol. IV,
Annex 192.

168 itch that was unbearable. I made home remedies for the children,
like I have done so many times before when they were bitten by

insects435ut this time the medicine I had prepared did not cure
themŽ .

3.13 Spurred by the complaints of area residents, in March 2001, several local

non-governmental organizations (“NGOsŽ) visited the border regions to

investigate and record their observations. The first of the numerous reports

issued by organizations from across civil society on the subject of the aerial

436
sprayings was issued in June 2001 . Echoing the statements of Witnesses 4 and

5 just cited, the report found significant impacts on the health of the local

populations, their crops and their animals. Health symptoms recorded included

eye problems, respiratory distress, dermatological conditions and gastrointestinal

437
difficulties .

3.14 With respect to the damage to crops, the 2001 report stated: “The

campesinos from this entire zone reported significant damages to the crops, to the

extent as to believe they will starve soon. During our trip, we were able to

appreciate all the effects mentioned [by them]Ž 438. Paralleling Witness 5’s

description of what happened to his coffee and cacao plants, the report observes:

435Witness 4 Declaration, op. cit. EM, Vol. IV, Annex 192.
436
Accion Ecologica, Report on the Investigation of the Fumigations’ Impacts on the Ecuadorian
Border (June 2001). EM, Vol. IV, Annex 161.
437
Ibid., pp. 5-6.
438
Ibid., p. 10.

169 “All the campesinos said the coffee has been affected. The plants
turn yellow, dry up and no longer produce seeds. The bean is
empty. The harvest for the year has been lost. We were able to
confirm that the leaves were as if they had been burned and the

fruit is empty.

. . . As with the coffee, the leaves of the cocoa plant were yellow
to the point of drying up and the fruits on the plants appeared dry.Ž

3.15 The report’s conclusions include the following:

“There is a direct temporal relation between the fumigations and

the appearance of the sicknesses.

There is an inverse proportional relationship between the distance
from the site that was sprayed and the symptomatology. As the
distance from the sprayed site increases, the symptomatology in
the population decreases.

. . .

The population that has suffered the impacts of the spraying is
experiencing feelings of anxiety. They have no financial support,

no compensation or appropriate care for their health, which has
been undermined by a spraying program that renders them
invisible.

The negative impacts on the population’s health and its nutritional
state may increase if no adequate measures are taken to offset the
failure of their crops and the death of their livestock and
animalsŽ 439.

3.16 This initial report was followed just a month later, in July 2001, by

another study issued by a delegation composed of representatives from several

NGOs, including the Confederation of Indigenous Nationalities of Ecuador

439
Ibid., p. 11.

170(“CONAIEŽ) 440. As part of the delegation’s mission, it met with affected persons

and conducted site-visits to investigate the allegations of harm first-hand.

Notably, the report contains a section summarizing the testimonies of the local

populations that in all material respects parallels the witness statements Ecuador

submitted with the Memorial. Rather than recapitulate those contemporaneous

testimonies here, Ecuador respectfully refers the Court to the relevant sections of

441
the report, located in Annex 162 of the Memorial .

3.17 The NGO delegation conducted its own investigation of the situation on

the border and, with respect to the health situation, stated:

“Analyzing the reports of the ten leading causes of illness in the
General Farfán Health Subcentre, whose jurisdiction includes San

Francisco 2, it was discovered that the three leading causes of
illnesses in the population continued to be respiratory infections,
which increased by 42% (from 206 to 293 cases) from January to

June 2001, in comparison to the same period of the previous year;
skin infections, which increased by 48% compared to 2000 (from
147 to 218), and malaria, which increased by 33% (from 111 to

148).

The doctor at the Subcentre indicated that the impact of the
fumigations was significantly more noticeable in January, when,
suddenly, people began inhaling the chemical. There were

440Confederation of Indigenous Nationalities of Ecuador (CONAIE) et al., Technical Report of
the International Commission on the Impacts in Ecuadorian Territory of Aerial Fumigations in

Colombia (19-22 July 2001). EM, Vol. IV, Annex 162.
441Ibid., pp. 10-13. See e.g., ibid., p. 10 (“There are numerous affected Kichwa people along the
San Miguel River and the crops are affected by the sprayings. The planes crossed the border and

we have respiratory, eye and skin problems . . . Ž);ibid., p. 11 (“School children, in the
communities close to the border, are having problems. Before they used to play and now they
have headaches and diarrheaŽ.). EM, Vol. IV, Annex 162.

171 numerous cases of rhinitis and eye irritation, which were not
442
recordedŽ .

3.18 The July 2001 report also noted the psychological trauma caused by the

aerial sprayings and their aftermath. The report notes: “The sprayings are causing

situations of insecurity and fear in border populationsŽ 44. As explained by

Salinas resident Witness 5, in addition to the physical symptoms “the sprayings

have also caused psychological problems in our village. It has caused fear,

444
concern, uncertainty and a lot of anxietyŽ . She, like others, was particularly

concerned about the impact on her young child who, years later, “is still scared

that the planes might come backŽ 44. This anxiety has had unfortunate

consequences. Many residents fearing for their health and survival have fled

away from the border. As described by Witness 18, eight of her children have

left and “do not want to return because they are afraid; they hear an airplane and

446
they think that they are going to spray againŽ . Many of those who remain live

with this fear. As echoed by another Salinas resident, “[m]y community lives in

442
Ibid., p. 14.
443
Ibid., p. 22.
444Witness 5 Declaration, op. cit. EM, Vol. IV, Annex 193.

445Ibid.

446Declaration of Witness 18, 15 Jan. 2009 (hereinafter “Witness 18 DeclarationŽ). EM, Vol. IV,
Annex 204.

172constant anguish. We do not know when this nightmare will end. We are afraid

447
that they will spray again and we will not be able to feed our childrenŽ .

3.19 Concerning the effects of the spraying on crops, the NGO report states:

“COFFEE: the crops exhibit an alteration of the green color of
their leaves, with a yellowing of the central vein; followed by total

chlorosis (yellowing) and the presence of brown spots both at the
tip of the leaves and their edge; and the withering of the entire
plant. . . .

YUCCA: yellowing was observed in the leaves and in the root or
edible part. When cut cross-sectionally, one can see a dark

brownish-grey halo near the bark, which appears to be healthy. . . .

PLANTAIN: withering was observed in the bottom leaves of the

mother plant and in the stems of the shoots. The campesinos said
that the growth of the plant has ceased. When cut cross-
sectionally, necrosis was observed in the xylem or conducting

tissue, which prevents the transport of sap. . . .

RICE: there is a yellowing that has markedly reduced the harvest.
A three month-old plot was inspected. At the mere sight of it, one

could detect a discoloration of the entire plant and the onset of
diseases. . . .

PASTURE GRASS: it was observed that there is discoloration or

yellowing that starts at the tips and edges of the leaves, and
subsequently the entire plant dries and diesŽ 448.

3.20 It is notable, particularly in light of Colombia’s criticisms discussed

below, that both of these reports were prepared contemporaneous to the events in

447Declaration of Witness 3, 17 Jan. 2009 (hereinafter “Witness 3 DeclarationŽ). EM, Vol. IV,
Annex 191.

448Confederation of Indigenous Nationalities of Ecuador (CONAIE) et al., Technical Report of
the International Commission on the Impacts in Ecuadorian Territory of Aerial Fumigations in
Colombia, p. 16 (19-22 July 2001). EM, Vol. IV, Annex 162.

173question by organizations that have no other motive than to draw attention to the

problem they found. It is equally telling that both reported on phenomena that are

entirely consistent not only with each other but with the witness statements as

well.

3.21 The findings of these two NGO missions were echoed in

contemporaneous media accounts. In July 2001, for example, a major national

daily, El Universo, published an article detailing the effects of the aerial sprayings

earlier in the year. With respect to the sprayings in northern Sucumbíos, the

newspaper recounted the spray’s impacts on the border community of La

Charapa 44. The President of the Association of Afro-Ecuadorians in Sucumbíos,

a local farmer, is quoted describing how, four or five months earlier, “a strange

rain was swept onto his crops by the wind, and an unbearable smell hung in the

450
airŽ . The article recounts how the residents lived in fear after seeing the

spray’s effects451. Only 20 of the 130 chickens in María Reyna’s farm survived,

the pigs slowly died, the various crops withered and stopped producing 45. In the

neighbouring town of 10 de Agosto, the reporter found the scars left behind on

the residents’ skin from the skin rashes that had followed the border spraying, in

449“The Drama of FumigationsŽ, L UNIVERSO (Guayaquil, 10 July 2001). ER, Vol. IV, Annex
61.

450Ibid.
451
Ibid.
452
Ibid.

174addition to the stomach aches, respiratory problems, dizziness and headaches that

came with it 453.

3.22 In the face of this evidence, Colombia takes the position that none of it is

credible 45. Perhaps to distract the Court from the other sources of evidence, the

Counter-Memorial focuses special attention on the eyewitness statements

presented in the Memorial and attacks them on several fronts. Indeed, it is no

exaggeration to state that the primary thrust of Colombia’s effort to rebut

Ecuador’s showing of harm is to argue that the witness testimonies do not

withstand scrutiny. Yet, as Ecuador will show in the pages to follow, Colombia

is wrong. Taken collectively and together with the other elements of proof … now

supplemented by the spray flight data obtained from the United States … there is

every reason to credit these sworn, eyewitness statements from local residents

who personally observed and experienced the aerial sprayings and the effects on

themselves and their communities.

3.23 The essence of Colombia’s attack on Ecuador’s witness statements is

encapsulated in a single line from the Counter-Memorial: “The allegations of the

campesinos remain wholly unsubstantiatedŽ 45. In Ecuador’s view, this argument

453Ibid.
454
See, e.g., CCM, Chap. 7, para. 7.6.
455
CCM, Chap. 7, para. 7.151.

175is both factually wrong and disturbingly condescending. Surely, the first-hand

accounts of Ecuadorian campesinos are entitled to the same weight as those of

other human beings. The mere fact that they are impoverished citizens of the

developing world does not render them any less able than anyone else to testify

about facts within their personal experience. Indeed, the opposite may be true in

this case. As subsistence farmers, their very survival depends both on their own

health and on the health of their crops. They are thus particularly attuned to

nature’s rhythms, agricultural cycles and even slight disturbances to the delicate

balances of their lives456.

3.24 Equally, and as a matter of fact, Colombia is wrong that Ecuador’s case

rests exclusively on these eyewitness statements. Ecuador has already cited to

NGO and press reports contemporaneous to the earliest aerial sprayings that

confirm the existence of the harms alleged. In addition, Ecuador relies on

multiple other sources to support its claims, including: (a) the reports of several

UN Special Rapporteurs; (b) additional NGO field assessments conducted in later

years; (c) other media accounts; (d) contemporaneous medical inquests; (e)

Colombian eyewitnesses and, not least; (f) reports from organs of the Colombian

456
See Norman E. Whitten, Jr., Ph.D., Dr. William T. Vickers, Ph.D. & Michael Cepek, Ph.D.,
Tropical Forest Cultural Ecology and Social Adaptation in the Ecuadorian Border Region with
Colombia, pp. 3, 13, 31 (Jan. 2011) (hereinafter, “Whitten et al. ReportŽ) (describing how “the
people of the border region are inextricably linked to their natural environment and are thus
extremely vulnerable to environmental perturbations that upset this balanceŽ). ER, Vol. II, Annex
5.

176government itself. Each of these independent sources of evidence is discussed

further in this Chapter. For the moment, the essential point is that Colombia

misrepresents the truth when it suggests that the witness statements stand alone.

In reality, they are just one part of a consistent and mutually reinforcing whole

that together forms a body of consistent and coherent evidence all demonstrating

harm in Ecuador. The spray flight data is only the latest addition to this body of

evidence, although it is a very important one.

3.25 In addition, as was detailed in Ecuador’s Memorial and as is further

explained in Chapter 2 of this Reply, the descriptions of harm that are provided in

the witness testimonies and elsewhere are consistent with the properties of the

known chemicals in the spray mixture. The reports of skin and eye irritation are

not surprising given the fact that surfactants included in glyphosate-based

products, including POEA, are known to cause such effects. In fact, the label of

Roundup SL … a product Colombia admits to using … warns users to “[a]void

457
contact with eyes and skinŽ because the product causes irritation . As discussed

in Chapter 2, another product Colombia has used, Roundup Export, is capable of

causing “irreversible eye damageŽ 458, and in fact its use was discontinued for

457
Colombia Roundup SL Label, p. 1. EM, Vol. III, Annex 115. See also EM, Chap. 5, paras.
5.44…5.45.
458United States Environmental Protection Agency, Office of Prevention, Pesticides and Toxic

Substances, Report on Issues Related to the Aerial Eradication of Illicit Coca in Colombia,
Response from EPA Assistant Administrator Johnson to Secretary of State, p. 8 (19 Aug. 2002)
(hereinafter “EPA 2002 AnalysisŽ). EM, Vol. III, Annex 143; see supra Chap. 2, paras. 2.19-2.23.

177precisely that reason. The health symptoms reported … not just in Ecuador’s

witness statements, but by the UN Special Rapporteurs, NGOs, contemporaneous

medical inquests, the media, and other observers … are also consistent with the

findings of Colombia’s own studies. For example, Colombia’s own assessment

acknowledges that ingestion of glyphosate can cause “erosion of the digestive

tract, which manifests as difficulty in swallowing, sore throat, and gastrointestinal

hemorrhagingŽ 459. In attacking Ecuador’s witness statements, the Counter-

Memorial ignores the remarkable consistency of those statements with its own

conclusions about the risks posed by the spray mixture.

3.26 The harm to plants, animals and the environment is also in line with the

scientific evidence. As explained in the Report of Dr. Stephen C. Weller, the

hallmarks of glyphosate exposure in plants are stunted growth and a yellowing or

blackening of the plant tissue, all symptoms that the affiants describe with great

specificity6. Those very symptoms were universally described in the witness

statements, contemporaneous field reports and press accounts. The product label

for Roundup Export warns “DRIFT MAY CAUSE DAMAGE TO ANY

VEGETATION CONTACTED TO WHICH TREATMENT IS NOT

459Republic of Colombia, Environmental Risk of the Herbicide Glyphosate, Sec. 1.7.1 (date
unknown). EM, Vol. II, Annex 101.
460
See Stephen C. Weller, Ph.D., Glyphosate-Based Herbicides and Potential for Damage to
Non-Target Plants Under Conditions of Application in Colombia, pp. 1, 5-6, 22-23 (Jan. 2011)
(hereinafter “Weller ReportŽ). ER, Vol. II, Annex 3.

178 461
INTENDEDŽ . Thus, the extensive destruction of food crops and other plants

in Ecuador as a result of their exposure to Colombia’s spray mixture is entirely

predictable. Moreover, the witness statements and other accounts invariably

mention similar damage to multiple plant species; the fact that the dead and dying

plants were not specific to a particular species or crop, as would be expected with

a disease or insect infestation, is further evidence that the damage was caused by

an indiscriminate herbicide 462.

3.27 Tellingly, the Counter-Memorial says next to nothing about the early

NGO reports cited above at paragraphs 3.13 to 3.19, which were described in the

463
Memorial . Perhaps Colombia knows they negate its assertion that Ecuador’s

witness statements are uncorroborated by contemporaneous evidence. Perhaps

Colombia has nothing to say consistent with its premise that the witness

statements are latter-day inventions of a few dozen untrustworthy campesinos.

Whatever the reason, rather than respond to these reports or any of the others like

them, Colombia chooses a different tactic. The Counter-Memorial suggests that

in December 2004, Ecuador itself acknowledged that no harm of any kind had

been caused anywhere in the country at any time up to that date and, as a result,

461 United States Roundup Export Label, United States Pesticide Product Label System,
Registration No. 524-308 (9 July 1997). EM, Vol. II, Annex 125.
462
See Weller Report, op. cit., p. 3. ER, Vol. II, Annex 3.
463
See, e.g., EM, Chap. 6, paras. 6.12-6.13, 6.38, 6.43, 6.50, 6.57, 6.83-6.86.

179 464
all of its evidence from before that date can be summarily discarded . And,

what is the basis for this remarkable claim? Statements issued by the Ecuadorian

Foreign Ministry in 2004 to the effect that it had conducted site visits to the

border area and found no traces of glyphosate residue in any of the water or soil

465
samples taken .

3.28 Colombia has gorged itself on Ecuador’s statements that glyphosate was

not detected in these samples. The Counter-Memorial speaks of this for no fewer

than 18 pages. But Colombia’s gluttonous reliance on these statements is both

misplaced and disingenuous.

3.29 It should come as no surprise to Colombia that glyphosate was not

detected in the river waters or the soil that were sampled. Colombia’s Counter-

Memorial and experts recognize that glyphosate “is rapidly removed from water

by absorption to sediments and suspended particulate matterŽ 46. Moreover, in

addition to the chemical’s dissipation in the water, the river’s currents will

quickly carry any materials away from the spray site. Colombia is well aware

this happens. The government agency in Colombia’s Nariño Department (which

abuts Ecuador) that is responsible for environment and natural resources,

464
See, e.g., CCM, Chap. 7, paras. 7.2, 7.112, 7.113.
465
Ibid.
466K.R. Solomon et al. “Environmental and Human Health Assessment of the Aerial Spray

Program for Coca and Poppy Control in ColombiaŽ, OAS, Washington, D.C., 31 March 2005, p.
20 (hereinafter “Solomon, 2005Ž). CCM, Vol. III, Annex 116.

180informed the Colombian Ministry of Environment that testing for glyphosate in a

local river would be fruitless: “Given the strong current of the Chaguí River and

the fact that many months have transpired since the fumigations began, it is not

possible to take samples of water to determine the degree of affectation of the

467 468
riverŽ . Glyphosate also disappears quickly from the soil . After that, it is

undetectable. That glyphosate was not found in the running river waters or soil

samples weeks or months after the aerial sprayings gets Colombia nowhere: it

does not prove glyphosate was not deposited there several weeks earlier by the

spray planes.

3.30 In fact, Ecuador’s searches for glyphosate residues were hopeless

exercises: they were conducted at the wrong times and places. Figure 3.2, shows

why they were in vain. As the Court can see, during the two-month period from

November to December 2004, Colombia conducted only very limited aerial

spraying operations within 10 kilometres of Ecuador; the contrast with other two-

month periods, such as the August to September 2002 period depicted in Figure

3.2, could not be more stark. Thus, to say that testing in December 2004 found

467 Letter from Francisco Santander Delgado, Director General, Corponariño, Republic of

Colombia, to Maria Cecilia Rodriguez, Minister of the Environment, Republic of Colombia (26
Sept. 2002). ER, Vol. V, Annex 144.
468
See Diplomatic Note DM/AL No. 25009, sent from the Ministry of Foreign Affairs of
Colombia to the Ministry of Foreign Affairs of Ecuador, p. 3 (14 July 2001). EM, Vol. II, Annex
43. Weller Report, p. 3. ER, Vol. II, Annex 3; Charles A. Menzie, Ph.D. & Pieter N. Booth, M.S.,
Response to: “Critique of Evaluation of Chemicals Used in Colombia’s Aerial Spraying Program,
and Hazards Presented to People, Plants, Animals and the Environment in Ecuador,” As
Presented in: Counter-Memorial of the Republic of Colombia, Appendix, pp. 25-26 (Jan. 2011)

(hereinafter “Menzie & Booth ReportŽ). ER, Vol. II, Annex 6.

181no glyphosate residue says nothing. If any glyphosate had been present in the

area after the sprayings, it would have been gone, or at least undetectable, by the

time the tests for it were conducted.

3.31 The same applies to Ecuador’s efforts to test for glyphosate earlier in

2004. We know from the flight data that the spraying often occurred more than a

month earlier and more than 10 kilometres away. In the July 2004 testing, for

example, the samples were taken by Ecuador, in Esmeraldas, more than two

months after the most recent sprayings within 10 kilometres, which had been

completed by April 2004 469. There was no spraying along the border in July

2004 47. Similarly, the closest spray lines to the Sucumbíos sites tested in May

471
2004 are all more than 10 kilometres away .

3.32 Thus, the only result that these 2004 tests and statements reach is that, at

that place and time, Colombia’s prior sprayings were sufficiently far removed

geographically and temporally to have left any discernable traces in the local

469See infra Figure 3.6. See also Press Bulletin No. 480 of the Ecuadorian Foreign Ministry, “No
glyphosate residues were found in Esmeraldas, border with ColombiaŽ (26 Aug. 2004). CCM,
Vol. II, Annex 81.

470See infra Figure 3.6.

471See Flight Path Data Received From the U.S. Department of State and Other Technical
Information. See also Press Bulletin No. 388 of the Ecuadorian Foreign Ministry, “No glyphosate
residues exist in the waters of the rivers of the Sucumbíos ProvinceŽ (25 June 2004). CCM, Vol.

II, Annex 80. Even if the sampling at the San Miguel River was at the closest point to the spray
lines, which could make it less than 10 km away, as discussed above, testing in a large, running
river will not detect glyphosate residue several days, weeks, or even months after the most recent
spraying.

182 Spray Events Within 10 Kilometres of Ecuador’s Sucumbíos Province

(August - September 2002)

C O L O M B I A

!
Salinas Puerto Mestanza
! Dios Peña ! ! !
San Francisco 2 ! Puerto Escondido
General ! Santa! ! ! ! !
San Francisco 1 Farfán Marianita Corazón Orense Chone 2
! ! Playera
Virgen del Cisne La Condor 5 de Agosto Oriental
La Charapa Puerto
! ! ! Union Lojana Nuevo ! Chone 1
10 de Agosto Monterrey

San Miguel
Spray events
E C U A D O R

Spray Events Within 10 Kilometres of Ecuador’s Sucumbíos Province

(November - December 2004)

C O L O M B I A

! !
Salinas Puerto Mestanza
!Dios Peña ! Puerto Escondido ! !
San Francisco 2 ! ! ! ! !
San Francisco 1 General Santa ! ! Corazón Orense Chone 2
! Farfán Marianita
Virgen del Cisne ! Playera
La Condor La Charapa 5 de Agosto Oriental
! ! Union Lojana Puerto !
10 de Agosto Nuevo Chone 1
Monterrey

San Miguel
E C U A D O R Spray events

Figure 3.2water or soil that much time after the sprayings were conducted. The statements

are not the silver-bullet Colombia tries to make of them in order to quickly

disregard four years of prior evidence of exposure and harm in Ecuador.

Contrary to Colombia’s misconstrued argument that Ecuadorian authorities

“expressly and publicly stated that, up until December 2004Ž 472 no damage had

occurred in Ecuador, the only conclusions reached were that no damage had been

473
observed at the specific locations visited on the dates of the visits .

3.33 Once Colombia’s attempt to make more out of Ecuador’s inconclusive

2004 water and soil tests than they merit is exposed, Ecuador’s case on harm for

the years between 2001 and 2004 stands effectively unrebutted, except for

Colombia’s dismissive statements about the inherent unreliability of Ecuadorian

campesinos.

3.34 The Counter-Memorial further attacks the witness statements on the

alleged ground that they “are studiously vague as to the timing of the sprayings

and locations where sprayings allegedly took place, making it impossible to check

472
See CCM, Chap. 7, para. 7.2.
473
See, e.g., Memorandum of the Ecuadorian Foreign Ministry, 24 Dec. 2004. CCM, Vol. II,
Annex 83 (stating that it was unaware of “sprayings on the Ecuador-Colombia border in the past
weeksŽ) (emphasis added).

183these assertions against the documented record of spray missionsŽ 474. Colombia

is wrong here, too.

3.35 In the first instance, it is ironic for Colombia to complain about the

difficulty checking the witnesses’ statements against “the documented record of

spray missionsŽ. While Ecuador has no reason to doubt that Colombia has such

records, they have been shared with neither Ecuador nor the Court. In its

475
Counter-Memorial, Colombia admits to having such records , yet does not

bother to produce them as part of its evidentiary showing. Given the discussion

in Chapter 2 about what is revealed by the data Ecuador was able to obtain from

the United States, Colombia’s reticence is understandable.

3.36 In any event, what matters now is the extent to which Ecuador’s witness

statements coincide with the later-acquired spray data. As discussed further

below, the correspondence between the two is impressively close. In Ecuador’s

view, this congruency lends even greater credibility to the witness statements.

Put another way, the fact that the statements match the later-acquired spray data

constitutes an indicium of the statements’ reliability.

474CCM, Chap. 7, para. 7.126.

475See, e.g., CCM, Chaps. 4 & 7, paras. 4.64, 7.17, 7.172.

1843.37 Colombia is also incorrect when it suggests that Ecuador’s witness

statements are anything less than crystal clear on the subject of “the locations

where sprayings allegedly took placeŽ 476. To a person, Ecuador’s witnesses

specify exactly where they were when the sprayings took place. Witness 18, a

resident of San Francisco 1, is typical in this respect. He states:

“I remember the first time the sprayings occurred; I was clearing
ground with my friend in preparation for planting watermelons,

about a kilometre from the San Miguel River. At ten in the
morning, they started spraying. At first I could hear the noise of
the planes and then I began to smell a nasty odor in the airŽ 477.

3.38 As reflected on Figures 2.13 and 2.14, all the places the witnesses

identified are located in very close proximity to the areas where the recently-

acquired flight data confirm that sprayings were being conducted, and certainly

well within the reach of the spray drift as predicted by Colombia’s own model

(corrected only for the actual flight parameters).

3.39 Colombia’s assertion that the witness statements are “studiously vagueŽ as

to when the sprayings took place is similarly off the mark. In fact, a significant

number of them refer specifically to the first sprayings as taking place in “2001Ž.

476CCM, Chap. 7, para. 7.126.

477Witness 18 Declaration, op. cit. EM, Vol. IV, Annex 204.

185Witnesses 4 and 5 quoted already above are just two examples. Others who

478
specifically referred to sprayings beginning in 2001 are cited in a footnote .

3.40 The fact that these witnesses do not refer to the specific month in 2001 is

no reason to discredit their testimonies. It is an attribute of memory that exact

dates become harder to recall as more time passes. And what is true generally is

particularly true for the residents of the border area. As stated in Ecuador’s

Memorial and admitted in the Counter-Memorial, most residents of the border

area are minimally educated subsistence farmers engaged in a daily struggle to

479
put food on the table in a very remote region . Others are indigenous peoples

480
who still live largely in accordance with their ancient ways . They cannot be

viewed through the same lens as professionals in the developed world who clutch

their day-planners wherever they go and then file them away for posterity.

3.41 Ecuador acknowledges that a number of the Sucumbíos witness

statements (sworn in January 2009) refer to the first spray events as taking place

478
See, e.g., Declaration of Witness 2, 16 Jan. 2009 (hereinafter “Witness 2 DeclarationŽ). EM,
Vol. IV, Annex 190; Witness 3 Declaration, op. cit. EM, Vol. IV, Annex 191; Witness 4
Declaration, op. cit. EM, Vol. IV, Annex 192; Witness 5 Declaration, op. cit. EM, Vol. IV,
Annex 193; Declaration of Witness 9, 16 Jan. 2009 (hereinafter “Witness 9 DeclarationŽ). EM,

Vol. IV, Annex 197; Declaration of Witness 11, 16 Jan. 2009 (hereinafter “Witness 11
DeclarationŽ). EM, Vol. IV, Annex 199.
479
See EM, Chap. 2, para. 2.22; CCM, Chap. 2, para. 2.13.
480See EM, Chap. 2, paras. 2.20-2.21.

186 481
“seven or eight years agoŽ . This too should engender no doubt. First, as just

stated, it is unrealistic to expect perfect recall as to dates from any person years

after the fact, much less the people who live along the Ecuador/Colombia border.

Second, and more to the point, saying the sprayings began “seven or eight years

agoŽ is factually correct. Since the statements were sworn in the first month of

2009, seven or eight years before is 2001 or 2002. Third, any apparent lack of

precision can be understood given the frequency with which sprayings took place.

As first described in Ecuador’s Memorial and discussed again below, Colombia’s

spray planes revisited the Sucumbíos border region repeatedly in the years

following 2001, including in the years 2002-2007 inclusive 48. For example, the

area within 10 kilometres of San Francisco 2 village was sprayed during at least 5

different months between 2001 and 2002, with repeated sprayings in the

483
subsequent years . Under the circumstances, with so many intervening spray

events, it is not surprising that a witness did not give the precise month when the

first such event occurred.

481See, e.g., Declaration of Witness 2, 16 Jan. 2009. EM, Vol. IV, Annex 190; Witness 3
Declaration, op. cit. EM, Vol. IV, Annex 191; Witness 9 Declaration, op. cit. EM, Vol. IV,

Annex 197; Witness 11 Declaration, op. cit. EM, Vol. IV, Annex 199.
482Hansman & Mena Report, op. cit., p. 11 et seq. ER, Vol. II, Annex 1. See also Figures 2.6 and

2.13.
483See Figures 3.1 and 3.3. See also Figure 2.56 and 2.13.

1873.42 Colombia also attacks Ecuador’s witness statements on the ostensible

484
ground that they “lack ... any medical evidence or other substantiationŽ . Here

again, Colombia is viewing the matter through an inappropriate lens. The

Ecuador-Colombia border is not The Hague. Hospitals, doctors’ offices and

pharmacies are not well-distributed throughout the region. Indeed, they are

485
extremely rare . Most of the time, and frequently even in the most severe cases,

residents have nowhere to turn for medical assistance other than their families.

As discussed in Ecuador’s Memorial, infrastructure throughout the region is

limited in the extreme. Roads are little more than dirt paths and public

486
transportation, where it exists at all, is infrequent and unreliable . Combined

with the scarcity of medical facilities, it is extraordinarily difficult for ill people to

seek the assistance of medical professionals.

3.43 This aspect of the Counter-Memorial’s argument rings particularly hollow

given Colombia’s repeated recognition of the remoteness, poverty and

underdevelopment of the region. At paragraph 2.13, for instance, the Counter-

Memorial states:

484CCM, Chap. 7, para. 7.126.
485
EM, Chap. 2, para. 2.26. See also Whitten et al. Report, op. cit., p. 26 (“many Cofán people
live far from health centers, which can be more than a day’s travel from their homesŽ.). Ibid. p. 49
(for the Awá “only San Lorenzo [hospital] has expertise in tropical-forest medicine. However,
reaching San Lorenzo from some Awá communities can take up to several days (by foot and then
by boat or by bus). Due to the time and cost of the journey, many illnesses go untreatedŽ.). See

also, pp. 42-43 (describing the limited access to healthcare in Sucumbíos Province). ER, Vol. II,
Annex 5.
486
EM, Chap. 2, para. 2.24; Whitten et al. Report, op. cit., pp. 12-13. ER, Vol. II, Annex 5.

188 “Sucumbíos has traditionally been one of the most neglected and
underdeveloped regions of Ecuador and was until recently

virtually isolated from the rest of the country. As Ecuador itself
acknowledges, the frontier region in general lacks basic
infrastructure and basic sanitation and health servicesŽ 487.

Later, at paragraph 7.37, Colombia similarly states: “The fact that these groups of

Ecuadorians [i.e., those living along the border] live in precarious hygienic

conditions and only have limited access to medical facilities is highly relevant for

488
present purposesŽ .

3.44 Ecuador agrees; it is “highly relevant for present purposesŽ. In particular,

it is relevant precisely because it counters Colombia’s argument that Ecuador’s

witness testimonies should not be credited because they are not supported by

contemporaneous medical documentation. It is disingenuous of Colombia to

insist on documentation that it acknowledges could not exist, through no fault of

the victims.

3.45 It should be added that even the few medical facilities in northern Ecuador

cannot be compared to those facilities with which counsel for Colombia may be

familiar. The hospital at Lago Agrio, for example, which is located more than an

hour’s bus ride (at a cost of US$4-5 per person, which exceeds the daily income

of much of the population) from the nearest frontier communities, is often

487CCM, Chap. 2, para. 2.13.

488CCM, Chap. 7, para. 7.37.

189overcrowded, out of essential medicines, and in ill repair 489. The Counter-

Memorial’s arguments about the lack of contemporaneous medical evidence is

thus a red herring that ignores what Colombia itself admits are the realities of life

in the frontier region.

3.46 Nevertheless, and notwithstanding all of the obstacles, some

contemporaneous medical records do exist. Following the sprayings in August

and September of 2002 a group of doctors and medical students travelled to the

border villages of Sucumbíos that had been affected by the sprayings and

documented the local residents’ resulting symptoms. These symptoms were

490
recorded in individual medical inquests of residents in each village visited .

The consistency in the health impacts reported in the medical inquests is

compelling. The evidence not only shows the repeated occurrence of the same

symptoms across the various towns affected on the border of Ecuador following

the spray; notably, it also reflects the same symptoms reported within Colombia

following local spraying 491, as further discussed in Section III below. In village

after village, the medical inquests reveal a consistent series of ailments following

the appearance of the spray planes … skin irritation and rashes, gastro-intestinal

489
See Whitten et al. Report, op. cit., p. 26. ER, Vol. II, Annex 5.
490Ecuadorian Medical Inquests (Sept. … Nov. 2002). ER, Vol. III, Annex 31.

491See Colombian Medical Inquests (Sept. 2002). ER, Vol. III, Annex 30.

190problems, respiratory problems, headaches, fever, and eye irritation 492… the same

symptoms predicted in the spray chemicals’ warning labels and expected from

493
improper exposure to the spray .

B. S UCUMBÍOS 2002

3.47 The flight data Ecuador secured from the U.S. Government show that

after the end of heavy sprayings along the Sucumbíos-Putumayo border in

January 2001, Colombia conducted some limited sprayings near Sucumbíos in

February, March and April that year.

3.48 Aerial spraying along the border resumed in earnest in November 2001

and lasted through a significant portion of 2002. Figure 3.3 depicts the heavy

spraying that took place in November 2001 to January 2002, and then again

between August and October 2002. As depicted, Colombia conducted massive

spray operations across huge swaths of Putumayo that directly abut Ecuador’s

Sucumbíos Province, including the Cofán-Bermejo Ecological Reserve.

3.49 The data also show that in the two-month period between December 2001

and January 2002, Colombia conducted 10,487 spray flights within 10 kilometres

492See Ecuadorian Medical Inquests (Sept. … Nov. 2002). ER, Vol. III, Annex 31.

493See supra Chap. 3, para. 3.25; Chap. 2, paras. 2.27-2.41; EM, pp. 132-152.

191 0°30'0"N

km

Figure 3.3
River

Putumayo

! Palma Seca

River

San Miguel
76°30'0"W 0-1 k1m-2m-3 k3m-m-7 k7m-10 km ! Chone Chone 1 76°30'0"W
!
spray line (km) !

Distance from nearest Playeratal 0 5 10 15 20 25
!

±
Puertoo

Corazón Orense
Puert! Mestanzagosto
Puerto EscondidoLojana
! !
P u t u m a y o
!
!! S u c u m b í o s
Monterrey
C O L O M B I A ! E C U A D O R
Dios Peña
! Santa La Charapa
Marianita
! !

San Miguel

Farfán
General
!
La Condor
November, 200120010022002r, 200202 ! !
!

(November 2001 - October 2002) 10 de Agosto
!
Spray events (month)

! San SFarannFcrisacnoci2sco 1

77°0'0"W 77°0'0"W
Salinas Virgen del Cisne

Spray Events Within 10 Kilometres of Ecuador’s Sucumbíos Province Peru
River

San Miguel Colombia
International boundary
Protected areas international boundary

Ecuador

Legend

Cofán Reserve

0°30'0"Nof the Ecuador border 49. Between August and October 2002, Colombia

conducted an additional 28,121 flights in the same area, during more than 15,000

of which it similarly disregarded the speed requirement that Colombia deemed

necessary to prevent spray drift 495.

3.50 Tellingly, what the flight data show is described in the witness statements,

which were submitted to the Court long before the flight data became available to

Ecuador. Witness 20 of Puerto Escondido, which is located on the river border,

for example, describes the first spraying during this time:

“The first spraying that I remember was in the year two thousand
and two. It was late in the morning. I was with the pigs by the
plantain fields when I saw the planes. There were also helicopters.

The planes were flying like vultures fighting for food, going up
and down repeatedly. They were dropping white liquid that
extended throughout the air. In some areas it fell directly, in

others it drifted with the wind. It smelled bad, I could barely stand
it. I felt the mist go into my eyes. My eyes became sticky. I
started to feel sick and I immediately returned homeŽ 49.

3.51 The consequences began almost immediately and, over time, affected his

health, the health of children, and his farm:

“When I got home, I shouted to my children to go into the house
because they were outside playing, watching the planes. Still, a

few days later my seven children had stomach aches and diarrhea.
Before, they were healthy. They had never been sick like this

494Hansman & Mena Report, Appendix 3, op. cit., p. 28. ER, Vol. II, Annex 1.

495Ibid.
496
Declaration of Witness 20, 16 Jan. 2009 (hereinafter “Witness 20 DeclarationŽ). EM, Vol. IV,
Annex 206.

192 before; also, the other children in the community became sick with

the same thing. I did not know what to give them, except for
chamomile tea. The plants died a week or two after the sprayings.
The maize started to bend. I had three hectares of yucca and I was

not able to harvest any; it all dried up. I also had ten hectares of
coffee and cocoa, all of which turned yellowŽ 497.

Other witness statements that specifically refer to sprayings in 2002 are cited in

498
the footnote .

3.52 The Counter-Memorial attacks Witness 20’s testimony directly but does

nothing more than argue that “all of this has nothing to do with the characteristics

499
of glyphosateŽ . Like so much of the Counter-Memorial, this argument

assumes its own conclusion. The spray could not have caused the harm

described, Colombia says, because the spray does not cause that kind of harm!

Besides being circular, it is inaccurate.

497
Ibid. EM, Vol. IV, Annex 206.
498Salinas: Witness 2 Declaration, op. cit. EM, Vol. IV, Annex 190; Witness 3 Declaration, op.

cit. EM, Vol. IV, Annex 191; Witness 4 Declaration, op. cit. EM, Vol. IV, Annex 192; Corazon
Orense: Witness 9 Declaration, op. cit. EM, Vol. IV, Annex 197; San Francisco II: Declaration of
Witness 12, 16 Jan. 2009 (hereinafter “Witness 12 DeclarationŽ). EM, Vol. IV, Annex 200;
Declaration of Witness 13, 15 Jan. 2009 (hereinafter “Witness 13 DeclarationŽ). EM, Vol. IV,
Annex 201; Declaration of Witness 17, 16 Jan. 2009 (hereinafter “Witness 17 DeclarationŽ). EM,
Vol. IV, Annex 203; Puerto Escondido: Witness 20 Declaration, op. cit. EM, Vol. IV, Annex

206; Declaration of Witness 22, 16 Jan. 2009 (hereinafter “Witness 22 DeclarationŽ). EM, Vol.
IV, Annex 208; Declaration of Witness 23 (hereinafter Witness 23 DeclarationŽ), 16 Jan. 2009.
EM, Vol. IV, Annex 209; Awá: Declaration Witness of 40, 20 Feb. 2009 (hereinafter “Witness 40
DeclarationŽ). Annex 223; Declaration of Witness 41, 20 Feb. 2009 (hereinafter “Witness 41
DeclarationŽ). EM, Vol. IV, Annex 224.

499CCM, Chap. 7, para. 7.137.

1933.53 Before proceeding further, it bears mention here that, as in other parts of

the Counter-Memorial, Colombia plays a shell-game with the facts. It says that

the effects described have nothing to do with “the characteristics of glyphosateŽ.

Whether or not that is strictly true (it is not), Colombia’s statement does not fairly

meet the evidence. A significant part of the problem is that: (a) the spray mixture

is not composed exclusively of glyphosate; and (b) Colombia has never fully

disclosed exactly what else is in it. Thus, by trying to focus the Court exclusively

on the ostensible effects of glyphosate as such, Colombia clearly hopes to elide

the larger question of the composition and toxicity of the spray mixture as a

whole, and of the other elements of the mixture that have never been fully

disclosed.

3.54 That said, the fact of the matter is that the effects Witness 20 (and others)

describe are exactly the attributes of chemical herbicide exposure. Eye irritation,

headaches, dizziness and gastro-intestinal irritation, along with the yellowing and

wilting of plants, are all classic and expected consequences of exposure to

glyphosate-based herbicides 500. Colombia’s own Counter-Memorial

acknowledges that the mixture “may cause temporary symptoms, such as eye or

skin irritationŽ50. In addition, Colombia’s own National Health Institute has

linked POEA (an ingredient Colombia has admitted to including in the spray

500See supra para. 3.25; EM, pp. 132-152.

501CCM, Chap. 7, para. 7.179.

194mixture) to gastrointestinal damage, breathing difficulties, and other symptoms

502
experienced by the border residents . And the witnesses’ description of the

yellowing and death of multiple crops … maize, yucca, coffee and cocoa … 1 to 2

weeks after the spraying, is precisely what one would expect from exposure to a

503
glyphosate-based herbicide .

3.55 The testimonies of Witness 20 and other witnesses who specifically refer

to sprayings in 2002 are amply supported by contemporaneous accounts. El

Universo reported on 7 September 2002 that Ecuadorian residents in the border

towns of Sucumbíos, including Puerto Nuevo, confirmed having witnessed spray

504
planes operating across the river the week before . The reporters personally

505
observed the same skin rashes on children exposed to the spray in Colombia as

506
those described in the Ecuadorian witness statements .

502
Government of Colombia National Health Institute, Evaluation of Effects of Glyphosate on
Human Health in Illicit Crop Eradication Program Influence Zones, p. 5 (2003) (hereinafter
“Evaluation of Effects of Glyphosate on Human HealthŽ). EM, Vol. II, Annex 96; see also supra,
Chap. 2, para. 2.45.

503Weller Report, op. cit., pp. 3-6. ER, Vol. II, Annex 3.

504“Hunger and Misery from FumigationsŽ, E L U NIVERSO (Guayaquil, 7 Sept. 2002). ER, Vol.
IV, Annex 68.

505Ibid.

506See, e.g., Witness 2 Declaration, op. cit. EM, Vol. IV, Annex 190; Witness 3 Declaration, op.
cit. EM, Vol. IV, Annex 191; Witness 4 Declaration, op. cit. EM, Vol. IV, Annex 192; Witness 9
Declaration, op. cit. EM, Vol. IV, Annex 197; Witness 12 Declaration, op. cit. EM, Vol. IV,

Annex 200; Witness 13 Declaration, op. cit. EM, Vol. IV, Annex 201; Witness 17 Declaration,
op. cit. EM, Vol. IV, Annex 203; Witness 22 Declaration, op. cit. EM, Vol. IV, Annex 208;
Witness 23 Declaration, op. cit. EM, Vol. IV, Annex 209; Declaration of Witness 28, 17 Feb.

1953.56 Twelve days later, on 19 September 2002, El Universo published another

story about more spraying near the border “by six planes and eight helicoptersŽ

that caused harm in Ecuador, including the village of Chone 2, located less than 1

507
kilometre from the border . (The location of Chone 2 is depicted on Figure 3.3

above). The reporter interviewed a Mr. Ángel Encarnación, who watched the

aircraft spraying across the river in Colombia 508. The story also quotes a Mr. José

Aldaz as saying that after the spraying, “the Ecuadorian plantations of sugarcane,

corn, plantains, coffee, fruits, yucca and other crops have lost their natural color

509
and as a result have been damagedŽ .

3.57 The human health effects of the sprayings recounted in the witness

statements annexed to the Memorial are also reflected in contemporaneous

medical inquests of residents in Chone 2 taken on 12 September 2002. For

example, Ms. Isabel Campoverde and her husband both fell ill following the

spraying, suffering from throat irritation, headache, eye irritation and a skin

rash510. Similarly, Ms. Obdulia Pineda, also of Chone 2, suffered from eye

irritation and stress, and her husband had both eye problems and respiratory

2009 (hereinafter “Witness 28 DeclarationŽ). EM, Vol. IV, Annex 212; Witness 40 Declaration,

op. cit. EM, Vol. IV, Annex 223; Witness 41 Declaration, op. cit. EM, Vol. IV, Annex 224.
507“Farmers Against FumigationsŽ, E L UNIVERSO (Guayaquil, 19 Sept. 2002). ER, Vol. IV,

Annex 69.
508Ibid.

509Ibid. ER, Vol. IV, Annex 69.

510Medical Inquest of Ms. Isabel Campoverde (12 Sept. 2002) in Ecuadorian Medical Inquests
(Sept.…Nov. 2002). ER, Vol. III, Annex 31.

196distress. Their children were affected too: their three year-old child experienced

stomach problems and their 13 year-old developed a skin rash 511.

3.58 Contemporaneous press accounts show that families in nearby villages

were experiencing the same harms. On 26 September 2002, the Ecuadorian daily,

La Hora, reported that residents of the border villages, including Santa Marianita,

Monterrey, Puerto Mestanza and Puerto Nuevo, had watched as Colombian spray

planes crossed over the border one week earlier 512. Residents affirmed “the

damage caused to crops, animals, and the human beings that inhabit this region as

a result of the Colombian government fumigating in Ecuadorian territoryŽ 513.

The consequences included the following harm to people: “many children have

suffered skin rashes and a type of uncontrollable allergyŽ; harm to plants: “the

type of fumigating agent employed has caused damages to all the vegetation,

especially to pastures, rice, cacao, plantain, coffee, and sugar cane, causing a true

511Medical Inquest of Obdulia Pineda (12 Sept. 2002) in Ecuadorian Medical Inquests (Sept.…
Nov. 2002). ER, Vol. III, Annex 31. See also Medical Inquest of Rosa Margarita Jimenez (12
Sept. 2002) (symptoms included stomach problems, throat and eye irritation, insomnia, and

chills); Medical Inquest of Ma Encarnación (12 Sept. 2002) (symptoms included stomach
problems, dizziness, eye and skin irritation, and a cough); Medical Inquest of Isabel Campoverde
(12 Sept. 2002) (symptoms included throat irritation, eye irritation, a skin rash, and headaches);
Medical Inquest of Alicia Calero (12 Sept. 2002) (symptoms included eye irritation and

headaches); Medical Inquest of Maria Ilbay (12 Sept. 2002) (symptoms included stomach
problems, eye irritation, skin irritation, headaches, and dizziness) in Ecuadorian Medical Inquests
(Sept.…Nov. 2002). ER, Vol. III, Annex 31.
512
“Ecuadorians Demand CompensationŽ, L A H ORA (Quito, 26 Sept. 2002). ER, Vol. IV, Annex
70.
513
Ibid.

197desert in the midst of the jungleŽ; and harm to animals: “the animals that have

514
been most affected are barnyard fowlŽ .

3.59 Shortly thereafter, on 8 October 2002, another article was published in El

Comercio, in which the reporter visited the areas hit by the recent sprayings on

both the Colombian and Ecuadorian sides of the border. On the Colombian side,

the reporter saw “[d]ozens of guarumos, native trees in the areas fumigated, are

barely able to support their enormous leaves. Others, with completely barren

branches, look like enormous candlesticks. The banana trees are almost falling

and their stalks barely support them. The impact of fumigations is so strong that

even the grass has been completely destroyedŽ 515. Crossing the border into

Ecuador he found a similar, though less extreme, sight in villages including

General Farfán: “Plantain plants starting to show dry leaves can be seen from the

road. Walking along the parcels, you can see how the yucca leaves are wilted,

516
how the corn leaves look yellowed and wrinkledŽ . The reporter details how,

following sprayings witnessed by local residents 15 days earlier, whole families

514Ibid.

515“Glyphosate Affects Crops in SucumbíosŽ, L COMERCIO (Quito, 8 Oct. 2002). ER, Vol. IV,
Annex 71.

516Ibid.

198had became ill with headaches, dizziness, stomach aches and skin rashes; plants

dried out; and animals became sick or slowly starved to death 517.

3.60 Just over a week after this article was published, an official from the

Sucumbíos provincial government wrote a letter to the Ecuadorian Ministry of the

Environment in which he reported that the day before (15 October 2002) he

journeyed to the villages affected to personally verify the damage. He confirmed

that:

“as a result of the fumigations the orito, plantain, banana, corn,

and yucca crops, and, in general, all the different agricultural crops
that are basis of sustenance for peasants in the area were burnt.
Similarly, the fish in pools, which comprise part of the sector’s

industry, have died. Barnyard fowl has also been affected. As a
result, negative effects exist which harm the inhabitants of the

Border with Colombia. I was also able to confirm the effects
caused to individuals’ health, such as itchiness, boils on their
bodies, skin affectations and respiratory problemsŽ 518.

3.61 The medical inquest records confirm that the health effects of the 2002

sprayings were widespread throughout the border region. For example, Mr. Italo

Ramón Bene Cosa, a resident of General Farfán, located less than a kilometre

from the border, reported fever-like symptoms, head-ache, eye irritation,

519
coughing and intense skin irritation . He recounted that in late September he

517Ibid.

518Letter from Victor Velasco Tapia, Government of Sucumbíos, to Lourdes Luque, Minister of
Health (16 Oct. 2002). ER, Vol. III, Annex 33.

519Medical Inquest of Ramon Bene Cosa Italo (13 Nov. 2002) in Ecuadorian Medical Inquests
(Sept.…Nov. 2002). ER, Vol. III, Annex 31.

199 520
had seen six spray planes escorted by four helicopters . As he worked outside

on his farm, just 600 metres from the border, his face began to break out in a rash,

and then became hot and swollen 521.

3.62 In the neighbouring town of Puerto Nuevo, itself just abutting the river

border, several residents reported very similar ailments following the September

2002 sprayings: stomach aches, headaches, dizziness, eye irritation, throat

522
irritation and skin rashes . As one resident put it, all this occurred after they

523
“received ‘rain water’ from the planesŽ .

3.63 Other towns in which the occurrence of harm is documented in the

medical inquest forms include Palma Seca and Playera Oriental, 524both of which

are less than 2 kilometres from the border and close to the 2002 sprayings as

525
disclosed in the recently-obtained spray flight data .

520Ibid. ER, Vol. III, Annex 31.

521Ibid.

522Medical Inquest of Zacarias Garcia Chavez (12 Sept. 2002); Medical Inquest of Jose Hilberto
Reyes Ramirez (12 Sept. 2002); Medical Inquest of Jose Felix Guerra Rodriguez (12 Sept. 2002);

Medical Inquest of Lucelia Torres Garcia (12 Sept. 2002); Medical Inquest of Edith Garcia (12
Sept. 2002) in Ecuadorian Medical Inquests (Sept.…Nov. 2002). ER, Vol. III, Annex 31.
523
Medical Inquest of Lucelia Torres Garcia (12 Sept. 2002) in Ecuadorian Medical Inquests
(Sept.…Nov. 2002). ER, Vol. III, Annex 31.
524
See Ecuadorian Medical Inquests (Sept.…Nov. 2002). ER, Vol. III, Annex 31.
525
See Figure 3.3.

2003.64 The accounts of the harm resulting from the sprayings are still further

corroborated in the report issued by representatives of several Ecuadorian NGOs

who visited various communities in the border area in late September 2002, to

investigate reports of the damage for themselves. In the first two Ecuadorian

border towns visited, Playera Oriental and Chone 2, “evident damage from the

fumigation of 6 September 2002 on the Colombian side of the banks of the San

526
Miguel River was observedŽ . Similarly, in the Ecuadorian village facing the

Colombian town of La Pedregosa across the river, “damage was found in the

banana plantations and other crops, which showed signs of chlorosis (yellowing),

as a result of the proximity of fumigations in Colombia. The accounts pointed

out that these impacts stemmed from the fumigations done on the Colombian side

527
between 30 August and 6 September 2002Ž . Ecuador first cited to this report

528
in the Memorial . In response, Colombia says only that it is “wholly

unsubstantiatedŽ 529. Given the corroborative evidence Ecuador has proffered, one

might be justified in wondering at what point exactly Colombia would accept any

evidence as “substantiatedŽ.

526
Association of American Jurists et al., Report on Verification Mission: Impacts in Ecuador of
Fumigations in Putumayo as Part of Plan Colombia, pp. 7-8 (Oct. 2002). ER, Vol. III, Annex 32.
527
Ibid., p. 8.
528
EM, Chap. 6, para. 6.14, n. 417.
529CCM, Chap. 7, para. 7.151.

2013.65 In any event, the truth of the events recounted in the witness statements

and the NGO and press reports is compellingly affirmed by the then-UN Special

Rapporteur on the Right to Health, Mr. Paul Hunt, who issued a press statement

and a report on the subject of Colombia’s aerial sprayings. This unquestionably

impartial observer visited the border area, interviewed the inhabitants, reviewed

relevant materials, including those of a scientific and technical nature, and

concluded that the residents’ descriptions of harm were credible and reliable.

Perhaps for that reason, the Counter-Memorial entirely fails to come to grips with

the Special Rapporteur’s findings.

3.66 The Special Rapporteur travelled to the region in May 2007 in order to

investigate the reports of harm for himself. In his own words, the “focus of my

mission [to Ecuador] was aerial spraying of glyphosate, combined with additional

530
components, along the Colombia-Ecuador borderŽ . His assessment involved

reviewing all pertinent sources of evidence: “The Mission . . . reviewed the

existing scientific evidence, took personal testimonies, consulted with experts,

collected additional information … and examined all of this material through the

lens of the human right to healthŽ 531. In other words, the Special Rapporteur took

all the steps necessary to make reliable findings of fact, including visiting

530Paul Hunt, UN Special Rapporteur on the Right to the Highest Attainable Standard of Health,
Closing Remarks to the Press, Quito, Ecuador (18 May 2007). ER, Vol. IV, Annex 107.

531Ibid.

202 532
communities in the northern border zone . His conclusions thus deserve special

attention, particularly insofar as they validate the campesinos’ descriptions of the

harm that they experienced and observed. In that regard, Mr. Hunt specifically

determined that: “There is credible, reliable evidence that the aerial spraying of

glyphosate along the Colombia-Ecuador border damages the physical health of

people living in EcuadorŽ 533. Based on this finding of “credibleŽ and “reliable

evidenceŽ, Mr. Hunt concluded “there is an overwhelming case that the aerial

spraying of glyphosate along the Colombia-Ecuador border should not re-

commenceŽ 534. Indeed, the Special Rapporteur found the evidence so compelling

that he concluded “there is no doubt in my mind that Colombia should not

recommence aerial spraying of glyphosate on its border with Ecuador . . .

535
Colombia should respect a ten-kilometre no-spray zone along the borderŽ .

532Report of the Special Rapporteur on the Right of Everyone to the Enjoyment of the Highest

Attainable Standard of Physical and Mental Health, Paul Hunt: Preliminary Note on Mission to
Ecuador and Colombia, Addendum, A/HRC/7/11/Add.3, para. 6 (4 Mar. 2007). EM, Vol. II,
Annex 31.

533Ibid. (emphasis added).
534
Paul Hunt, UN Special Rapporteur on the Right to the Highest Attainable Standard of Health,
Closing Remarks to the Press, Quito, Ecuador (18 May 2007) (emphasis added). ER, Vol. IV,
Annex 107.

535Ibid. See also Report of the Special Rapporteur on the Right of Everyone to the Enjoyment of
the Highest Attainable Standard of Physical and Mental Health, Paul Hunt: Preliminary Note on

Mission to Ecuador and Colombia, Addendum, U.N. Doc. A/HRC/7/11/Add.3, para. 17 (4 Mar.
2007). (“While in Ecuador, the Special Rapporteur’s preliminary view was that there was
credible and reliable evidence that the aerial spraying of glyphosate along the border damages the
physical and mental health of people living in Ecuador. The Special Rapporteur’s preliminary

conclusion was that the evidence provided during the mission was sufficient to call for the
application of the precautionary principle and that, accordingly, Colombia should not recommence
aerial spraying in the 10-km border zone with Ecuador, thus ensuring conformity with its
international human rights responsibilitiesŽ.). EM, Vol. II, Annex 31.

2033.67 The Special Rapporteur’s findings are all the more notable because they

were made after affording the Colombian government an opportunity to present

its side of the story. As part of his investigation, the Special Rapporteur visited

Colombia and conducted discussions about the aerial spraying programme with

senior Colombian officials, including the Vice-President, the Deputy Minister of

Health and the Director of the Anti-Narcotics Police, among others 536. Nothing

he heard in Colombia altered his determination that “credible and reliable

evidenceŽ demonstrated that “aerial spraying of glyphosate along the Colombia-

537
Ecuador border damages the physical health of people living in EcuadorŽ .

3.68 The Counter-Memorial seems wary of reminding the Court about the

Special Rapporteur’s report. Thus, Colombia adopts what might charitably be

characterized as a hit-and-run approach, devoting just one paragraph to it. And

even then, it does not dispute any of the Special Rapporteur’s findings. It argues

only that they are irrelevant because they do not purport to be “a scientific

assessment of the effects of the fumigationsŽ 53.

3.69 Here, as in so many places, Colombia twists the truth. True, the report

does state that the Special Rapporteur’s visit “was not a scientific missionŽ, but it

536Ibid., paras. 6-7. EM, Vol. II, Annex 31.
537
Ibid.
538
CCM, Chap. 7, para. 7.118.

204also notes that he “reviewed the existing scientific evidenceŽ and “consulted with

539
expertsŽ . More to the point, the importance of the Special Rapporteur’s

findings does not lie in whether it can be labelled “scientificŽ. What matters is

that the individual specifically charged by the United Nations with responsibility

for these issues explicitly determined that all the evidence taken as a whole …

including the scientific evidence that he considered … credibly and reliably

supported the conclusion that the sprayings were causing harm in Ecuador. And

he specifically credited the testimonies of the Ecuadorian campesinos whom he

540
interviewed, declaring them “credibleŽ and “reliableŽ .

3.70 Viewed in light of the spray flight data, especially insofar as they show

Colombia’s wanton disregard for its own operational parameters, the Special

Rapporteur’s findings are more than corroborated. As discussed above, the data

confirm that Colombia was conducting massive spray operations along the border

with Sucumbíos in late 2000/early 2001 and in 2002 at exactly the time that the

other evidence, including NGO reports and eyewitness statements, indicate that

541
harm materialized there . The Special Rapporteur’s findings thus constitute one

539
Report of the Special Rapporteur on the Right of Everyone to the Enjoyment of the Highest
Attainable Standard of Physical and Mental Health, Paul Hunt: Preliminary Note on Mission to
Ecuador and Colombia, Addendum, U.N. Doc. A/HRC/7/11/Add.3, para. 10 (4 Mar. 2007). EM,
Vol. II, Annex 67.
540
See supra Chap. 3, para. 3.66.
541
See supra Figures 3.1 and 3.3.

205more highly probative element underscoring the validity and veracity of

Ecuador’s case.

3.71 A second UN Special Rapporteur, the Special Rapporteur on the Situation

of Human Rights and Fundamental Freedoms of Indigenous People, made similar

findings during his mission to Ecuador in 2006, especially in regard to the special

harms suffered by indigenous peoples as a result of Colombia’s aerial sprayings

542
along the Ecuadorian border .

1. The Kichwa and Cofán of Sucumbíos

3.72 With respect to the special harms caused to indigenous peoples, Colombia

is hard-pressed to dispute that their unique communal structures, modes of living,

spiritual traditions, and inter-connection with the land, make them particularly

susceptible to the health and environmental impacts that result from exposure to

the chemical spray mixture. In response to Ecuador’s evidence, Colombia simply

relies on the same refrain used throughout its Counter-Memorial: “the time is

vague, the living conditions are precarious, and we want more evidenceŽ. The

hollowness of this robotic response has already been addressed at paragraphs 3.23

to 3.46 above. Colombia accepts that the problems faced by the indigenous

542Report of the Special Rapporteur on the Situation of Human Rights and Fundamental
Freedoms of Indigenous People, Rodolfo Stavenhagen: Mission to Ecuador (25 April-4 May
2006), U.N. Doc. A/HRC/4/32/Add.2, paras. 28-34 (28 Dec. 2006). EM, Vol. II, Annex 30.

206communities along the border are “real and urgentŽ but prefers to side-step the

543
evidence and blame them on something else . This approach simply doesn’t

work. The same confluence of evidence that demonstrates the harm caused by

Colombia’s aerial spraying elsewhere in the border regions of Ecuador confirms

the particular harms suffered by the indigenous communities during the same

time periods.

3.73 For the Kichwa people residing along the border of Sucumbíos, the harm

544
began with the initial sprayings in late 2000/early 2001 . A July 2001 report, in

which delegates from CONAIE had travelled to the Kichwa village of San

Francisco 2, located approximately 3 kilometres from the border, to document the

effects of the sprayings, already describes “the departure of the shamansŽ from

the village as “a clear indication of the cultural impact on bordering

545
communitiesŽ . The witness statement by Ms. Blanca Chancosa, a Kichwa

leader and member of the observation mission, explains the critical role that

543
CCM, Chap. 9, para. 9.155.
544See Figure 3.1; Hansman & Mena Report, op. cit., p. 14. ER, Vol. II, Annex 1.

545Confederation of Indigenous Nationalities of Ecuador (CONAIE) et al., Technical Report of
the International Commission on the Impacts in Ecuadorian Territory of Aerial Fumigations in

Colombia, p. 22 (19-22 July 2001). EM, Vol. IV, Annex 162.

207shamans, or yachaks, play as the spiritual leaders and medicinal healers in the

Kichwa community 546.

3.74 The 2001 CONAIE report explains that the shamans had left “because

their healing plants have been contaminated and they can no longer use them to

cure peopleŽ 54. Underscoring the gravity of this event, the report concludes,

“[t]he cultural impact of the fumigations on this community has been

548
enormousŽ .

3.75 The CONAIE report observes that the harms caused by Colombia’s aerial

sprayings to the Cofán, Kichwa, and Shuar nationalities of Ecuador were in

common with those experienced by numerous indigenous communities that had

“seen their collective rights violated by indiscriminate sprayings over their

549
territories in ColombiaŽ . The threat was so great and so common, that in April

2002 the indigenous coastal tribes from both Ecuador and Colombia held their

546
Declaration of María Blanca Chancosa Sánchez, 14 Jan. 2009, para. 3. EM, Vol. IV, Annex
187. The report, written by experts on the indigenous communities of northern Ecuador, found at
Annex 5, further describes the shamans’ role in maintaining the community’s traditions and
protecting the health of its people. Whitten et al. Report, op. cit., p. 27. ER, Vol. II, Annex 5.

547Confederation of Indigenous Nationalities of Ecuador (CONAIE) et al., Technical Report of
the International Commission on the Impacts in Ecuadorian Territory of Aerial Fumigations in
Colombia, p. 13 (19-22 July 2001). EM, Vol. IV, Annex 162. See also ibid., p. 22.

548Ibid.

549Ibid., p. 22.

208first binational meeting in history to discuss their shared experience of the

sprayings 550.

3.76 The extent of harm that year was notable … so notable that, belying

Colombia’s attempt to depict the indigenous peoples as time-challenged, the

indigenous Kichwa residents cite to 2002 as a particularly intense year of aerial

spraying and adverse consequences therefrom 551. A 2003 report recording the

impacts in the Kichwa community of Yana Amarum, explains that the community

was “just recovering from the effect of the sprayings in July, August and

September 2002Ž 55. The spray flight data for 2002, shown in Figure 3.3 above,

confirms that the sprayings in that year and in that location were quite intense and

close to the Kichwa communities. The available evidence on the spray mixture

during that time shows that in 2002 the spray was particularly toxic … so toxic that

553
the formulation had to be changed . The evidence is not only consistent on the

locations and dates of the sprayings near the Kichwa communities, but also on the

special harms suffered as reflected in the witness testimonies.

550
“Binational Meeting of Indigenous Communities … Plan Colombia terrorizes the communitiesŽ,
LA H ORA (7 Apr. 2002). ER, Vol. IV, Annex 65.
551
See, e.g., Witness 12 Declaration, op. cit. EM, Vol. IV, Annex 200.
552Ecuadorian Ministry of Environment et al., Impacts in Ecuador by the Fumigations Carried

Out in the Putumayo Province under Plan Colombia, pp. 17-18 (July 2003) (hereinafter “Impacts
in Ecuador by the Fumigations Carried Out in the Putumayo Province, 2003Ž). EM, Vol. IV,
Annex 166.
553
See supra Chap. 2, para. 2.22.

2093.77 The Kichwa people are particularly reliant on plants for their sustenance,

554
their medicine, and their cultural and spiritual traditions . The 2002 sprayings

and destruction of plants in and around the Kichwa villages thereby caused

especially significant harm. Most immediately, the destruction of plants left the

Kichwa without medicine to treat the ailments caused by the spray mixture. The

report provided by experts on the indigenous communities of northern Ecuador,

explains the critical function that local plants serve in Kichwa medicinal

555
practice . As illustrated by a Kichwa mother in her witness statement, when she

and her children became ill following the 2002 sprayings … with eye irritation,

vomiting, diarrhea and headaches (the typical symptoms of exposure to

glyphosate-based herbicides and their adjuvants) … she could not use or treat her

children with the traditional medicine “passed from parents to childrenŽ as the

556
cure for diarrhea . She explains that “with the sprayings, the plants have dried

up and we can no longer prepare natural remediesŽ 557.

3.78 The same Kichwa mother explains that her crops of maize, coffee,

plantain and cacao all “dried upŽ after the 2002 spraying, leaving “no food for

554
See Whitten et al. Report,op. cit.,pp. 29-30. (“The Amazonian Kichwa are renowned for
their extensive knowledge of hundreds of useful plant species, many of which are medicinalŽ.).
ER, Vol. II, Annex 5.
555
Ibid.
556
Witness 12 Declaration, op. cit. EM, Vol. IV, Annex 200.
557Ibid.

210 558
[her] childrenŽ . As further detailed by experts in the anthropology of the

Kichwa people, the Kichwa maintain many of their traditional agricultural

practices, “making them heavily reliant on environmental resources for their well-

beingŽ and particularly vulnerable to environmental changes 559. With the 2002

sprayings, the Kichwa in the community of Yana Amarum saw their primary food

crops, including their staple food source, yucca or manioc, turn yellow and die.

Kichwa resident Witness 28, explains that in Yana Amarum “the situation was

very serious, because these plants are the basis of our diet. After the sprayings,

560
we had nothing to eatŽ .

3.79 With the integral aspects of the Kichwa life damaged by Colombia’s

aerial sprayings and “nothing to harvestŽ, Witness 28, like other Kichwa before

and after him, left to live elsewhere … leaving the indigenous community and its

561
traditions behind .

3.80 Another indigenous group, the Cofán, who also reside on the Sucumbíos

border, fared no better than the Kichwa. Approximately 1,200 Cofán people live

in 13 communities in Ecuador’s Sucumbíos province, including within the Cofán-

Bermejo Ecological Reserve. Experts on the Cofán people explain that “the

558Ibid.

559Whitten et al. Report, p. 26. ER, Vol. II, Annex 5.
560
Witness 28 Declaration, op. cit. EM, Vol. IV, Annex 212.
561
Ibid.

211Cofán rely heavily on forest resources for their culture, spiritual traditions, and

livelihoods. Therefore, the survival of this important indigenous group depends

upon continuous access to the healthy and intact environments . . . Ž 562. As

explained in Cofán Witness Statement 31, “[f]or the Cofán, nature is very

important, she provides us with everything that we need to live . . . if nature gets

563
sick, we also get sick; our life depends on natureŽ .

3.81 The spray flight data from 2002, shown in Figure 3.3, demonstrate the

extent and proximity of Colombia’s sprayings to the Cofán-Bermejo Ecological

Reserve, where Cofán have resided since pre-colonial times 564. In 2002, there

were more than 8,950 spray flights within 10 kilometres of the Reserve 565. As

indicated in Chapter 2, between 2000 and 2008 there were more than 12,400

spray flights within 10 kilometres of the Reserve, and more than one thousand

566
within just 2 kilometres .

3.82 The Cofán people produce the great majority of their food directly from

the forest environment 567. Following the sprayings, the staple crops on which

562Whitten et al. Report, op. cit., p. 17. ER, Vol. II, Annex 5.

563Declaration of Witness 31, 27 Feb. 2009 (hereinafter “Witness 31 DeclarationŽ). EM, Vol. IV,

Annex 215.
564Whitten et al. Report, op. cit., p. 17. ER, Vol. II, Annex 5.

565Hansman & Mena Report, op. cit., Appendix 3, p. 28. ER, Vol. II, Annex 1.

566Ibid., p. 14.
567
See Whitten et al. Report, op. cit., pp. 20-21. ER, Vol. II, Annex 5.

212they relied were dead or dried up 568. The animals on which they base their daily

diet were also dead or gone … as one witness recounts, following the spraying

they found the birds dead on the ground, a guanta whose hair had fallen off, and

almost no fish in the water 569. The harm goes beyond damage to the Cofán’s food

sources; it has also impacted their medicinal and spiritual practices. As explained

in the anthropological expert report: “Cofán medicinal practices also depend upon

570
residence in a relatively intact environmentŽ . They use as many as 250

571
different plant species for medicinal purposes . But, as described in the Cofán

witness statements, many of the medicinal plants were destroyed upon exposure

572
to the spray . The debilitation of the medicinal plants left no remedies for the

Cofán who were sickened (including skin irritation, vomiting, throat irritation,

and diarrhea) by exposure to the chemicals deposited by Colombia’s spray

planes 573.

3.83 Many of the Cofán have not been able to withstand the damage to their

way of life caused by Colombia’s aerial spraying, and have moved away from the

568
See Declaration of Witness 26, 17 Feb. 2009 (hereinafter “Witness 26 DeclarationŽ). EM, Vol.
IV, Annex 210.
569
Witness 31 Declaration, op. cit. EM, Vol. IV, Annex 215.
570
Whitten et al. Report, op. cit., p. 22. ER, Vol. II, Annex 5.
571
See Ibid.
572Declaration of Witness 27, 17 Feb. 2009 (hereinafter “Witness 27 DeclarationŽ). EM, Vol. IV,

Annex 211; Declaration of Witness 29, 16 Jan. 2009 (hereinafter “Witness 29 DeclarationŽ). EM,
Vol. IV, Annex 213; Witness 31 Declaration, op. cit. EM, Vol. IV, Annex 215.
573
See Witness 29 Declaration, op. cit. EM, Vol. IV, Annex 213; Witness 31 Declaration, op. cit.
EM, Vol. IV, Annex 215.

213sprayings and their ancestral lands. Cofán Witness 26 and her family used to live

by the border but “moved to live in the interior of Bermejo River, thinking that

574
this way we were going to be safe, but we were still affectedŽ . She continues,

“this displacement has affected our traditions, [as] it is very important for the

Cofán people to keep their rootsŽ 575.

C. E SMERALDAS 2000

3.84 The evidence from Mataje, a village located in the westernmost part of the

Ecuadorian province of Esmeraldas, demonstrates that the aerial sprayings began

576
to exert their effects on the village also in late 2000 . The village was originally

situated along the banks of the Mataje River bordering Putumayo, Colombia, but

following repeated aerial sprayings in the border area has since been re-

established farther inland 577.

3.85 The witnesses describe exactly where they were and what they saw when

the spray planes, previously unfamiliar to them, arrived in 2000. Witness 34

relates that she:

574
Witness 26 Declaration, op. cit. EM, Vol. IV, Annex 210.
575
Ibid.
576See infra Figure 3.4.

577See Declaration of Witness 37, 19 Feb. 2009 (hereinafter “Witness 37 DeclarationŽ). EM, Vol.
IV, Annex 220.

214 “was in Mataje when the first spraying occurred in the year 2000 .
. . When the first spraying occurred, I was working in the field,

clearing the land with a machete and removing the weeds in order
to plant. I saw several planes above. . . . They came and went
several times. They made a noise and dropped a liquid. In the air

it looked like white dust. With the wind, it moved through the air
and descended to the ground. When it fell on the plants, I noticed
that it looked like oil on top of themŽ 57.

3.86 Similarly, Witness 36 describes what she saw from her home on the banks

of the Mataje River at that time:

“The first time that I saw the sprayings was in the year 2000. I

was clearing the land in my farm, accompanied by my younger
son. I saw the planes and helicopters flying over the river. From

the planes, a white rain was coming out. That rain fell on top of 579
me and also on top of my son; it looked like grease on the skinŽ .

The statements from Mataje residents … Witnesses 30, 32, 33, 37, 38 and 39 …

further describe the witnesses’ experience of the first aerial spraying in 2000 and

its effects580. These descriptions belie Colombia’s criticism of the “vagueŽ dates

described in the statements of the Mataje residents.

578
Declaration of Witness 34, 19 Feb. 2009 (hereinafter “Witness 34 DeclarationŽ). EM, Vol. IV,
Annex. 218.
579
Declaration of Witness 36, 19 Feb. 2009 (hereinafter “Witness 36 DeclarationŽ). EM, Vol. IV,
Annex 219
580
Mataje residents: Declaration of Witness 30, 19 Feb. 2009 (hereinafter “Witness 30
DeclarationŽ). EM, Vol. IV, Annex 214; Declaration of Witness 32, 19 Feb. 2009 (hereinafter
“Witness 32 DeclarationŽ). EM, Vol. IV, Annex 216; Declaration of Witness 33, 19 Feb. 2009
(hereinafter “Witness 33 DeclarationŽ). EM, Vol. IV, Annex 217; Witness 37 Declaration, op. cit.
EM, Vol. IV, Annex 220; Declaration of Witness 38, 19 Feb. 2009 (hereinafter “Witness 38
DeclarationŽ). EM, Vol. IV, Annex 221; Declaration of Witness 39, 19 Feb. 2009 (hereinafter

“Witness 39 DeclarationŽ). EM, Vol. IV, Annex 222.

2153.87 Colombia’s own flight data confirm what the witnesses describe. The

data, depicted in Figure 3.4, show that Colombia began its sprayings along the

border with Esmeraldas in August 2000, and continued through September 2000.

3.88 Contemporaneous news articles further corroborate what is evident from

the witness statements and flight data, confirming the timing of the initial

sprayings and the resultant harms. A newspaper report from La Hora on 18

September 2000 states that the Mataje residents were suffering from health

581
impacts following sprayings during that time . Due to the extent of harm

reported, the article explains that the local district of San Lorenzo formed a

commission to travel to Mataje to further investigate. A member of the

commission confirmed that “at this momentŽ Mataje residents were suffering

from “skin infections, ongoing diarrhea, and eye irritations . . . seemingly as a

consequence of [Colombia’s] fumigationsŽ 582. The article provides Mataje

residents’ reports of frequent flights by Colombian spray planes and

583
helicopters .

581
“In Mataje the Implementation of Plan Colombia Causes First RavagesA,HORA (Quito, 18
Sept. 2000). ER, Vol. IV, Annex 57.
582
Ibid..
583Ibid.

216 1°30'0"N 1°15'0"N 1°0'0"N

0-1m-2 k2mm-5 k5m-m-10 km Figure 3.4
August, 2000r, 2000
78°15'0"W spray line (km) km 78°15'0"W

Distance from nearest Spray events (month)

Protected areas international boundary

Legend

River C a r c h i

San Juan 0 5 10 15 20 25
78°30'0"W 78°30'0"W

Awá Reserve ±

!
N a r i ñ o

Mataje Alto

C O L O M B I A

Gua!ualito
River

Mataje
!

Mataje Awá Reserve
78°45'0"W 78°45'0"W

(August - September 2000)

H

San Lorenzo E s m e r a l d a s

E C U A D O R
Cayapas-Mataje

79°0'0"W Peru 79°0'0"W
Spray Events Within 10 Kilometres of Ecuador’s Esmeraldas Province Colombia

Ecuador

1°30'0"N 1°15'0"N 1°0'0"N3.89 The harms reported in the contemporaneous news article … “skin

584
infections, ongoing diarrhea, and eye irritationsŽ … are the same harms

described by the witness statements (and the same ones associated with exposure

585
to glyphosate-based herbicides and adjuvants like POEA) . Witness 36, for

example, explains how after feeling the spray on her skin and drinking water from

a bucket exposed to the white mist, she became sick “with a stomach ache,

vomiting, diarrhea and itchiness on [her] bodyŽ 58. Likewise, Witness 34

describes her immediate reactions upon being exposed to the spray in 2000, “[t]he

liquid also fell on me, on my head, arms, and all over my body. Immediately, I

587
felt my skin itch intensely. . . . Above all, my face became very swollenŽ . She

describes how her face was so “disfiguredŽ that she was ashamed to speak to the

visiting newspaper reporters 588.

3.90 Despite the Counter-Memorial’s rote denials, these harms are the classic,

and acknowledged, health effects of exposure to the known elements of

Colombia’s spray mixture. As described in Ecuador’s Memorial, Colombian and

U.S. government studies expressly acknowledge that the spray mixture, and its

584Ibid.
585
See supra Chap. 3, para. 3.25; EM pp. 132-152.
586
Witness 36 Declaration, op. cit. EM, Vol. IV, Annex 219.
587Witness 34 Declaration, op. cit. EM, Vol. IV, Annex 218.

588Ibid.

217recognized chemical components, cause eye irritation 589. In fact, the U.S.

Environmental and Protection Agency confirms that the product being used at

590
this time could cause “irreversible eye damageŽ . As previously discussed, the

product labels for the known chemical elements used in the spray mixture warn

that improper exposure to the products cause “skin irritationŽ, “gastrointestinal

tract irritationŽ, and “eye irritationŽ 591 … all the symptoms felt by the Mataje

residents.

3.91 Colombia cites a lack of contemporaneous medical evidence to

corroborate these testimonies, and points to statements in a 2001 observation

mission report to the effect that, beyond the impacts seen and reported, there were

no studies showing that the sprayings and the immediate appearance of

glyphosate-related illnesses were connected. As noted earlier, medical records of

the kind typically found in European health clinics are not maintained in Mataje

where there was but one nurse and no electricity in the makeshift “health centreŽ

that was established on 15 September 2000, a few days before it was

overwhelmed by an unprecedented wave of sick patients with similar but

592
unfamiliar symptoms . The observation mission reports and witness statements

589
EM, Chap. 5, para. 5.37.
590See supra Chap. 2, para. 2.21

591See supra Chap. 2, paras. 2.19-2.20, 2.24, 2.27, 2.29, 2.32-2.34, 2.37-2.41.

592“44 Affected by the FumigationsŽ,LECOMERCIO (Quito, 22 Oct. 2000). ER, Vol. IV, Annex
58.

218provided in the Memorial explain that after the spray drift had been felt by the

local residents, the children became ill first, soon after followed by the adults …

593
ultimately totalling nearly 40 people . As described by Witness 36, when she

went to see the nurse “there were so many people sick with vomiting and

594
headaches that there was nowhere to sitŽ . With or without contemporaneous

medical records or scientific studies, the uncontradicted statements of numerous

witnesses in regard to what they themselves experienced and observed constitutes

reliable evidence of the health impacts of Colombia’s aerial sprayings near

Mataje.

3.92 Although she made no written records, the nurse at Mataje had no

difficulty connecting the illnesses she treated in September 2000 to the recently

conducted aerial spraying adjacent to the village 595. In a contemporaneous news

593
Ibid. ER, Vol. IV, Annex 58; EM, Chap. 6, paras. 6.38-6.43; Confederation of Indigenous
Nationalities of Ecuador (CONAIE) et al., Technical Report of the International Commission on
the Impacts in Ecuadorian Territory of Aerial Fumigations in Colombia, p. 17 (19-22 July 2001).
EM, Vol. IV, Annex 162; Witness 39 Declaration, op. cit. EM, Vol. IV, Annex 222; Witness 36
Declaration, op. cit. EM, Vol. IV, Annex 219; Witness 32 Declaration, op. cit. EM, Vol. IV,

Annex 216. See also Witness 30 Declaration, op. cit. EM, Vol. IV, Annex 214; Witness 33
Declaration, op. cit. EM, Vol. IV, Annex 217; Witness 34 Declaration, op. cit. EM, Vol. IV,
Annex 218; Witness 37 Declaration, op. cit. EM, Vol. IV, Annex 220; Witness 38 Declaration,
op. cit. EM, Vol. IV, Annex 221.

594Witness 36 Declaration, op. cit. EM, Vol. IV, Annex 219.
595
Hospital staff in southern Colombia similarly had no trouble seeing the causal link between the
sprayings and illnesses seen there: “These symptoms also coincide with observations made by the
medical staff at the hospitals in southern Colombia, who said that from the moment that the
sprayings began, they observed a marked increase of these illnessesŽ. Confederation of

Indigenous Nationalities of Ecuador (CONAIE) et al., Technical Report of the International
Commission on the Impacts in Ecuadorian Territory of Aerial Fumigations in Colombia, p. 20
(19-22 July 2001). EM, Vol. IV, Annex 162.

219article from 22 October 2000, she is reported as confirming that since the

596
September sprayings had ended, the symptoms had not reappeared . That is,

until Colombia resumed spraying along the border with Mataje the following

year, and in each year after that.

3.93 Colombia cites a report including statements by area doctors … none of

whom treated the victims of aerial spraying in Mataje … suggesting that their

symptoms may have resulted from exposure to glyphosate-based herbicides used

at palm plantations in Ecuador 59. But the Counter-Memorial fails to point out

that, on the same page of the cited report, a plantation worker explains that the

palm plantation spraying is “done with a [hand] pump, and not with planes; and,

that the stream into which the water for these crops drain is downstream, below

598
MatajeŽ . The UN Special Rapporteur on the Right of Everyone to the

Enjoyment of the Highest Attainable Standard of Physical and Mental Health

further refutes Colombia’s “misleadingŽ argument: “The Special Rapporteur

notes that the use of glyphosate in Ecuador (direct and manual) is different from

the method used on the border by Colombia (aerial spraying). Furthermore, as

596“44 Affected by the FumigationsŽ,LECOMERCIO (Quito, 22 Oct. 2000). ER, Vol. IV, Annex

58.
597CCM, Chap. 7, paras. 7.145-7.146 (citing Confederation of Indigenous Nationalities of

Ecuador (CONAIE) et al., Technical Report of the International Commission on the Impacts in
Ecuadorian Territory of Aerial Fumigations in Colombia (19-22 July 2001). EM, Vol. IV, Annex
162).
598
Confederation of Indigenous Nationalities of Ecuador (CONAIE) et al., Technical Report of
the International Commission on the Impacts in Ecuadorian Territory of Aerial Fumigations in
Colombia, p. 18 (19-22 July 2001). EM, Vol. IV, Annex 162.

220the composition and concentration of the spraying appear to differ between

Ecuador and Colombia, the suggested equivalence between Ecuadorian and

Colombian practice is misleadingŽ 599.

3.94 The harms caused in Mataje extended beyond human health. The Mataje

residents also witnessed a wave of fish deaths in the border river immediately

following the sprayings. As confirmed by Witness 34, “after the spraying, there

were a lot of dead fish and shrimp. Usually, the fish and shrimp are below the

water level. But, after the sprayings, they were floating on the surface of the river

and going downstream with the current. I observed this immediately after the

sprayingsŽ 600. Mataje Witnesses 33, 37, 38, and 39 similarly recount their

601
sighting of the fish-kill . The witness statements are corroborated by

contemporaneous news articles reporting that on 22 September 2000, in addition

to the ill effects on humans following the spraying, “fish and other speciesŽ had

602
also died in the border Mataje River .

599Report of the Special Rapporteur on the Right of Everyone to the Enjoyment of the Highest
Attainable Standard of Physical and Mental Health, Paul Hunt: Preliminary Note on Mission to

Ecuador and Colombia, Addendum, U.N. Doc. A/HRC/7/11/Add.3, para. 18 (4 Mar. 2007). EM,
Vol. II, Annex 31.
600
Witness 34 Declaration, op. cit. EM, Vol. IV, Annex 218.
601Witness 33 Declaration, op. cit. EM, Vol. IV, Annex 217; Witness 37 Declaration, op. cit.

EM, Vol. IV, Annex 220; Witness 38 Declaration, op. cit. EM, Vol. IV, Annex 221; Witness 39
Declaration, op. cit. EM, Vol. IV, Annex 222.
602
“44 Affected by the FumigationsŽ, EL COMERCIO (Quito, 22 Oct. 2000). ER, Vol. IV, Annex
58.

2213.95 Colombia tries to ignore the confluence of evidence, including its own, to

claim that the fish deaths are “unsubstantiatedŽ 603. The Counter-Memorial

provides two principal reasons for this unsupported assertion … both of which fail.

First, Colombia resorts to its usual tactic of referring only to the base chemical

glyphosate, and not the actual spray mixture, arguing that “glyphosateŽ has

exhibited “little chronic toxicity to fishŽ 604. This is not the understanding of the

manufacturers of glyphosate-based herbicides, however. The label for GLY-41,

one of the herbicide formulations that Colombia admits to using, for example,

605
provides this warning in regard to the product’s toxicity to fish :

Figure 3.5 Warning Symbols From GLY-41 Label … Fish and Other Aquatic

Organisms

3.96 Moreover, Colombia’s own experts recognize the difference in toxicity

between glyphosate itself and the actual spray mixture used in the aerial spraying

programme. The Dobson Report, which is annexed to the Counter-Memorial, for

example, admits that “fish exposed to the spray formulation as used in Colombia

603CCM, Chap. 7, para. 7.82.
604
Ibid. (internal quotations omitted).
605
See supra Chap. 2, para. 2.41.

222(including the Cosmo-flux adjuvant) show greater toxicity than to the formulation

aloneŽ 606. The Solomon study further warns that “moderate risks could occur in

aquatic organisms in shallow surface waters that are over-sprayed during the

eradication programŽ 607. Accordingly, “[i]f shallow waters are routinely found

close to fields, it is recommended that other formulates be tested for the purposes

608
of selecting products that present a lower risk to aquatic organismsŽ . There is

no evidence that Colombia changed the formula in response to this study. Thus,

it should come as no surprise that fish-kills similar to the one at Mataje were also

produced by the aerial sprayings in Ecuador’s Sucumbíos Province and in many

609
Colombian villages exposed to the sprayings .

3.97 Colombia’s second attempt at avoiding responsibility for fish-kills

resulting from its aerial sprayings is based on its alleged observance of “no-spray

610
buffer zones along watercoursesŽ . As with all of the studies Colombia relies

on, its expert presumes Colombia’s strict compliance with the buffer zone

606
CCM, Appendix, p. 25, para. 99.
607
Solomon 2005, op. cit., p. 11. CCM, Vol. III, Annex 116. The report continues: “However,
the frequency of occurrence and extent to which this happens are unknown as data on the
proximity of surface waters to coca fields were not available.Ž
608
Ibid., op. cit., p. 12.
609
See, e.g., Association of American Jurists et al., Report on Verification Mission: Impacts in
Ecuador of Fumigations in Putumayo as Part of Plan Colombia, p. 3 (Oct. 2002). EM, Vol. IV,
Annex 165; Witness 2 Declaration, op. cit. EM, Vol. IV, Annex 190; Witness 5 Declaration, op.
cit. EM, Vol. IV, Annex 193; Declaration of Witness 8, 16 Jan. 2009 (hereinafter “Witness 8

DeclarationŽ). EM, Vol. IV, Annex 196; Declaration of Witness 10, 16 Jan. 2009 (hereinafter
“Witness 10 DeclarationŽ). EM, Vol. IV, Annex 198; Witness 28 Declaration, op. cit. EM, Vol.
IV, Annex 212.
610
CCM, Chap. 7, para. 7.82.

223restrictions and operational requirements in the Environmental Management Plan

to reach the conclusion that the fish-kills could not have been caused by the

spray. Significantly, he acknowledges that the spray mixture could cause fish-

kills either “through the direct toxicity of the surfactants in the spray mix or from

indirect effects due to oxygen depletion caused by biodegradation of dead plant

611
materialŽ . However, based on Colombia’s supposed strict adherence to

operational requirements and buffer zones, he concludes that it would be “highly

improbableŽ for the spray to have reached Ecuador and caused these effects 61.

As shown in Chapter 2, the presumptions on which the opinion of Colombia’s

expert are based are thoroughly negated by the flight data recorded by the spray

planes which Ecuador obtained from the U.S. Department of State. The opinion

remains interesting, however, for this reason: its acknowledgement that

Colombia’s spray mixture, if it reached the water bodies in or near Mataje where

the dead fish were observed, could have been responsible for killing them. The

flight data tell the rest of the story: spray drift into Mataje was inevitable given

the pervasive violations of all of the operational requirements by the spray pilots,

including deposition of huge volumes of spray near the river that runs

immediately next to Mataje.

611CCM, Appendix, p. 26, para. 100.

612Ibid.

224 D. E SMERALDAS 2007

3.98 After the impacts felt for the first time in September 2000, the residents of

Mataje were repeatedly revisited by Colombia’s spray planes depositing the spray

mixture along the border river, and by the matrix of ills that would immediately

follow. The greater Mataje area, including the Cayapas-Mataje Ecological

Reserve to the west and the Awá Indigenous Reserve to the east, was particularly

hard hit in 2004 and 2005, as shown by the flight data illustrated on Figure 3.6.

613
By the time aerial spraying in this area finally ended in 2007 , Colombia had

sprayed along the southernmost 10 kilometres of Nariño Province at least 28,638

times 61.

3.99 The last of these spraying campaigns, in early 2007, was particularly

intense and especially close to the Esmeraldas border … as can be appreciated

from the flight data in Figure 3.7. This spraying campaign was especially

troubling because Colombia had earlier promised that it would notify Ecuador in

613
Contrary to Colombia’s claims, the evidence shows that its fumigations along the Ecuadorian
border ended on or after 9 February 2007, not January 2007, as repeatedly presented in
Colombia’s Counter-Memorial, and not in January 2006, as recently claimed by the Colombian
government in its press release of 11 November 2010.Colombia chose not to provide any

evidence to support its assertions in the Counter-Memorial regarding the dates on which it
sprayed or suspended spraying. What the flight data show, and what the witness statements and
contemporaneous news reports further corroborate down to the day, is that Colombia continued to
spray in this area through at least 9 February 200See “More Refugees As A Result of
Fumigations Along the BorderŽ, E NIVERSO (Guayaquil, 8 Feb. 2007). ER, Vol. IV, Annex 81;
“Colombia Sprayed Within 1 km of the BorderŽ, EL UNIVERSO (Guayaquil, 10 Feb. 2007).

Annex 83.
614Hansman & Mena Report, Appendix 3, p. 28. ER, Vol. II, Annex 1.

225 1°30'0"N 1°15'0"N 1°0'0"N

Figure 3.6
0-1 k1mm-3 k3mm-7 k7m-10 km March, 2004J2a0n0u4ary, 20055, 2005
78°15'0"W spray line (km) km 78°15'0"W

Distance from nearest
Spray events (month)

Protected areasinternational boundary

Legend

River
C a r c h i

San Juan
0 5 10 15 20 25
78°30'0"W 78°30'0"W

±
! Awá Reserve
N a r i ñ o

Mataje Alto

C O L O M B I A

Guadualito
River

Mataje
!

Mataje Awá Reserve
78°45'0"W 78°45'0"W
(March 2004 - December 2005)

H

San Lorenzo E s m e r a l d a s

E C U A D O R
Cayapas-Mataje
Spray Events Within 10 Kilometres of Ecuador’s Esmeraldas Province

79°0'0"W Colombia Peru 79°0'0"W

Ecuador

1°30'0"N 1°15'0"N 1°0'0"N 1°30'0"N 1°15'0"N 1°0'0"N

Figure 3.7
0-1 k1m-m-3 k3m-5 k5m-7 k7m-1February, 2007
78°15'0"W spray line (km) km 78°15'0"W

Distance from nearest Spray events (month)

Protected areasinternational boundary

Legend

River
C a r c h i

San Juan 0 5 10 15 20 25
78°30'0"W 78°30'0"W

±

! Awá Reserve
N a r i ñ o

Mataje Alto

C O L O M B I A

River !
Guadualito

(February 2007) Mataje
!

Mataje
78°45'0"W Awá Reserve 78°45'0"W

H

San Lorenzo E s m e r a l d a s

E C U A D O R
Cayapas-Mataje
Spray Events Within 10 Kilometres of Ecuador’s Esmeraldas Province

79°0'0"W 79°0'0"W
Colombia Peru

Ecuador

1°30'0"N 1°15'0"N 1°0'0"Ncase of future sprayings, thereby allowing both States to put in place investigators

615
to determine whether the spray entered or harmed Ecuador . Regrettably, no

such advance notice was provided by Colombia.

3.100 Yet, on 8 February 2007, as reported in contemporaneous news articles in

El Universo, residents and Ecuadorian military officers watched five Colombian

spray planes accompanied by helicopters spraying within 1 kilometre of the

616
Mataje River . On 9 February 2007, after Colombia’s announcement that

spraying had been suspended, Ecuadorian residents watched again as four spray

planes and helicopters returned at 10:00 a.m., and continued to deposit the aerial

spray mixture, this time less than 1 kilometre from the border. The El Universo

article reports that local residents had witnessed this spraying campaign since the

previous week 617.

3.101 As happened many times before, immediately following exposure to the

spraying, area residents fell ill with the now-familiar symptoms. By 10 February

615
“Colombia Announces Ceasing of Fumigations to Ease Relations with QuitoŽ, E L
U NIVERSAL.COM (Caracas, 9 Feb. 2007). ER, Vol. IV, Annex 82.
616
“Colombia Sprayed Within 1 km of the BorderŽ, EL U NIVERSO (Guayaquil, 10 Feb. 2007).
ER, Vol. IV, Annex 83.
617
Ibid.

2262007, local children were sick with skin rashes covering their bodies, and eye

618
irritation .

3.102 The children, being the most vulnerable, were often the most hard-struck

by the spray mixture’s effects. Mataje Witness 33 describes how “many in the

community were affected. A lot of the children had diarrhea and vomiting,

including the children in my family. The adults were also sick but the children

were affected moreŽ 619.

3.103 The harms to human health were not the only injuries caused by the

spraying campaign. As in years past, in February 2007 Colombia’s aerial

sprayings posed serious risks to the environment on Ecuador’s side of the border.

Mataje is located near the Cayapas-Mataje Ecological Reserve, which was

620
established to protect the area’s mangrove forests . As described in Professor

Balslev’s expert report, the mangroves on Ecuador’s western coast “are the

largest in Ecuador and the only ones where the mangrove tree Pelliceria

rhizophorae can be foundŽ 62. These mangroves are particularly important for the

variety of ecosystem services they provide:

618
Ibid.
619
Witness 33 Declaration, op. cit. EM, Vol. IV, Annex 217.
620See Henrik Balslev, Ph.D., The Vulnerability of the Ecuador-Colombia Border Region to

Ecological Harm, p. 28 (Jan. 2011) (hereinafter “Balslev ReportŽ). EM, Vol. II, Annex 4.
621Ibid., p. 22.

227 “Their position in the tidal zone makes them important for many

species of marine life. The tidal zone placement produces a
salinity gradient and each zone has its own fish and invertebrate

fauna, so in a very limited space fishermen can find a wide range
of different species. Mangrove ecosystems are also important as
hatchment areas for larvae of a variety of marine organisms,

including shrimp and lobster. Many of these species, including
oysters, crab, lobster, shrimp and many types of fish are important
to local human diets. Mangroves also provide an important habitat

for a variety of bird species, many of which are residents of the
Cayapas▯Mataje mangrove protected area along the Colombian
622
borderŽ .

3.104 The local Esmeraldas fisherman are thus heavily reliant on the health of

this ecosystem. It was they who, soon after the February 2007 sprayings, raised

claims against Colombia for the harms caused to the mangroves and their sole

source of income. According to a contemporaneous press report, the President of

the Esmeraldas Fishermen’s Union expressed this concern about the effects of the

aerial sprayings on the mangroves: “The only natural laboratory we have in

Esmeraldas, which is the northern mangroves, and which is key to breeding and

maintaining the ecosystem, is being seriously affected and consequently fishing

623
will decrease in a very short timeŽ . He explained that the timing of the

sprayings was particularly troubling because they occurred during red snapper

622Ibid.
623
“Fishermen in Esmeraldas Fear Spraying with Glyphosate Affects MangrovesLU NIVERSO
(Guayaquil, 20 Feb. 2007). ER, Vol. IV, Annex 84.

228fishing season, and “the poison just alienates all coastal species and kills the

624
larvae, as it is in this area that females lay their eggs Ž .

3.105 The largely Afro-Ecuadorian communities in Mataje and other parts of

Esmeraldas Province are not the only ones impacted adversely by Colombia’s

aerial sprayings along and near the border. Also affected are the Awá indigenous

people. The UN Special Rapporteur on the Right of Everyone to the Enjoyment

of the Highest Attainable Standard of Physical and Mental Health observed that

the sprayings affected different groups: “the aerial spraying of glyphosate along

the northern border had to be seen in the context of the conditions of the people …

refugees, indigenous peoples, Afro-Ecuadorians . . . living on the northern

625
zoneŽ .

1. The Awá of Esmeraldas

3.106 The Awá are an indigenous group numbering only about 3,000 individuals

626
in Ecuador . As described in the report written by experts on the Awá

community of northern Ecuador, “[t]he Awá live mostly in very remote areas in

moist pristine forests on the western slopes of the Andes in the provinces of

624
Ibid.
625Report of the Special Rapporteur on the Right of Everyone to the Enjoyment of the Highest
Attainable Standard of Physical and Mental Health, Paul Hunt: Preliminary Note on Mission to

Ecuador and Colombia, Addendum, U.N.Doc. A/HRC/7/11/Add.3, para. 21 (4 Mar. 2007). EM,
Vol. II, Annex 31.
626
Whitten et al. Report, op. cit., p. 45. ER, Vol. II, Annex 5.

229Carchi, Imbabura and EsmeraldasŽ 627. Most are concentrated in the Awá

Indigenous Forest Reserve located east of Mataje along the Esmeraldas/Carchi

border adjoining Colombia’s Nariño province, shown in Figures 2.14, 3.6 and 3.7

above. Anthropologists familiar with this group explain that “[t]his is not a

628
population of ‘several generations,’ but of millenniaŽ . “Contemporary Awá

use a system of horticulture (agriculture) practices that includes maize cultivation

629
that dates to at least four thousand years agoŽ . Their mode of living and

relationship to the environment around them is thus deeply ingrained. It is not

just that they are intimately connected to the land; it is that they are intimately

connected with this land.

3.107 The environment they inhabit, and where they have lived for millennia, is

one of the most biodiverse places in the world. It is a rare “biodiversity hotspotŽ

because of the exceptional concentrations of unique species that exist nowhere

else on earth 630. In fact: “The best preserved parts of this forest are those along

the Ecuador▯Colombia borderŽ 63. This area is not only notable for the large

627
Ibid.
628
Ibid., p. 47.
629
Ibid.
63Balslev Report, pp. 19-22. ER, Vol. II, Annex 4. The endemism is particularly high in plant

species, where 25 percent or 2,750 plant species found in the hotspot occur nowhere else in the
world. There are close to 900 species of birds in the hotspot, 110 of which are endemic.
Amphibian diversity is also very high, with 200 different species including 30 endemics, such as
the famous poison dart frog.

631Balslev Report, op. cit., p. 19. ER, Vol. II, Annex 4.

230number of endemic species found there but also for the number of them that are

632
“highly threatenedŽ .

3.108 Given the depth of the connection of the Awá to this area, any significant

change to its unique environment has wide-spread consequences for them. Such

has been the result of Colombia’s aerial sprayings adjacent to this habitat. As

expressed by Witness 40, an Awá from the Mataje Alto village situated in the

Reserve: “The sprayings came and broke our connections with our earth and our

633
way of livingŽ .

3.109 As indicated in Chapter 2, the flight data obtained by Ecuador from the

U.S. State Department show that Colombia sprayed within 10 kilometres of the

Awá Reserve more than 10,900 times between 2000 and 2008, and within a mere

634
2 kilometres at least 57 times during this period . Colombia began spraying in

635
the area of Nariño Province bordering the Awá Reserve in late 2000 .

Thereafter, the sprayings increased in intensity and also in proximity to the Awá

Reserve, reaching their peak in 2005. As shown in Figure 3.6 above, in that year

Colombia blanketed the border area with its chemical spray mixture. The data

show a series of spray lines skimming the Mataje River marking the border

632Ibid.
633
Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223.
634
Hansman & Mena Report, op. cit., Appendix 3, p. 14. ER, Vol. II, Annex 1.
635See supra Figure 3.4.

231between Colombia and the Awá Reserve, and coming particularly close to the

village of Mataje Alto, the home of Witness 40, quoted above.

3.110 The witness statements, NGO reports, flight data and report of the UN

Special Rapporteur on Indigenous Peoples all corroborate the harm caused to

indigenous people, plants and animals exposed to the spray in the north-western

area of the protected reserve. As stated in an observation mission report from

November 2005, the Awá complained that as a result of the spraying “the animals

have decreased, the leaves have dried up. The produce turns hard, the maize dries

636
up leaving only the cob. There are no fish anymoreŽ .

3.111 Within days of the spraying, Awá children arrived at the health post “sick

637
with diarrhea, vomiting, high fever, and stomach acheŽ . Soon after, adults

638
followed with the same set of symptoms, as well as skin rashes . These were

unlike any other symptoms previously experienced by the local Awá … they

639
occurred for the first time following the first spraying in the area . Since it has

636Interamerican Association for Environmental Defense et al., Ecolex and AIDA Environmental
Report on the Impacts of the Fumigations under Plan Colombia, p. 5 (Nov. 2005). EM, Vol. IV,

Annex 170.
637Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223.

638Ibid.

639Ibid.

232nothing better to say, Colombia again complains about lack of contemporaneous

medical records 640.

3.112 Ecuador agrees it would be nice if such records existed … and much nicer

still if there were physicians or nurses accessible to the Awá who might have

prepared them. But the reality is that from Mataje Alto it takes five hours on foot

and another 1.5 hours by car to reach the town with the nearest hospital 64. Thus,

when ill Awá usually self-medicate using medicinal-plants or go to the traditional

642
healer, the shaman . The shaman does not keep a doctor’s notebook while

performing his healing rituals. If the patient remains uncured, on the best of days

643
the health promoter can provide the scant treatment that is available . At other

times, as recounted by Witness 40, he is over-run and over-whelmed with

patients, unable to attend to all their needs, let alone keep a medical log he does

not have 64.

3.113 The death of plants traditionally gathered by the Awá as a principal food

source also followed closely upon Colombia’s aerial sprayings. Witness 40

640CCM, Chap. 7, paras. 7.141-7.142.

641Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223. See also Whitten et al. Report, pp.
45, 49. ER, Vol. II, Annex 5.

642Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223; Whitten et al. Report, pp. 48-49.
ER, Vol. II, Annex 5.

643See, e.g., Witness 41 Declaration. EM, Vol. IV, Annex 224.

644Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223.

233explains that “from the first time they sprayed, our food supply was affectedŽ 645.

The statement by Awá Witness 41 describes in more detail how “[a]fter the

spraying, all the crops began to dry up. They turned yellow two or three days

after the sprayings. The leaves of the sugarcane became withered and they fell

off. The yucca leaves also withered, and the maize completely dried within a

week after the sprayingŽ 64. As in Mataje and elsewhere, immediately following

the spraying, the fish in the river were found to be affected. Witness 40 describes

the “bumpsŽ on the fish’s skin, like “blistersŽ, their unusually pale eyes and the

647
skin’s strange change to a “reddishŽ color . The witness statements and the

report of the UN Special Rapporteur on the Rights of Indigenous Peoples also

document the death and disappearance of wild animals normally found in the

Reserve 648.

3.114 Tragically, despite their ancient cultural connection to the land of their

ancestors, the Awá have been forced to choose between remaining in their homes

and enduring the consequences of future sprayings by Colombia, or abandoning

their traditional lands for greater safety. The evidence shows that the sprayings

645Ibid.

646Witness 41 Declaration, op. cit. EM, Vol. IV, Annex 224.
647
Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223.
648
Report of the Special Rapporteur on the Situation of Human Rights and Fundamental
Freedoms of Indigenous People, Rodolfo Stavenhagen: Mission to Ecuador (25 April-4 May
2006), U.N. Doc. A/HRC/4/32/Add.2, para. 30 (28 Dec. 2006). EM, Vol. II, Annex 30; Witness
41 Declaration, op. cit. EM, Vol. IV, Annex 224.

234have caused some Awá … like the Cofán and the Kichwa, as described previously

… to choose the latter, leaving a culture and millennia of history behind. The UN

Special Rapporteur on the Rights of Indigenous Peoples reports that following

Colombia’s sprayings the entire Sumac Pamba Awá community abandoned their

649
ancestral village . As described by Witness 40:

“as a result of the damages to health, nature and our sources of

food and spirituality, some people had to move to other Awá
communities within the reserve, which were farther from the
border and not affected by the sprayings. They made this decision

in order to avoid the health problems caused by the fumigations
and the death of their crops, because they no longer had the means
to surviveŽ650.

Section II. The Evidentiary Value of Witness Statements

3.115 A main feature of the Counter-Memorial’s effort to undermine Ecuador’s

witness statements is its argument that, under the Court’s jurisprudence, they

should be disregarded. In particular, after citing the Court’s Judgment in

Territorial and Maritime Dispute between Nicaragua and Honduras in the

Caribbean Sea (Nicaragua v. Honduras), Colombia asserts: “Unless

independently corroborated, [witness statements] are entitled to no weight;

651
notably insofar as they purport to express any opinion as to causationŽ . This

649Report of the Special Rapporteur on the Situation of Human Rights and Fundamental
Freedoms of Indigenous People, Rodolfo Stavenhagen: Mission to Ecuador (25 April-4 May

2006), U.N. Doc. A/HRC/4/32/Add.2, para. 30 (28 Dec. 2006). EM, Vol. II, Annex 30.
650Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223.

651CCM, Chap. 7, para. 7.127.

235aspect of the Counter-Memorial’s argument both defeats itself and is wrong as a

matter of law.

3.116 Colombia’s argument defeats itself because, as demonstrated in Section I

above, Ecuador’s eyewitness accounts are, in fact, “independently corroboratedŽ,

not least by the spray flight data that has recently come into Ecuador’s

possession, as well as by contemporaneous observation mission reports,

newspaper articles, the reports of various UN Special Rapporteurs,

contemporaneous medical inquests, the scientific literature on the known effects

of glyphosate-based herbicides, health warnings on product labels, and official

reports of governmental agencies in third States, inter alia.

3.117 And Colombia is wrong as a matter of law because the Court has never

652
said that witness statements should be accorded “no weightŽ . In making this

claim Colombia has disregarded the historic practice of the Court. Since as early

as the Corfu Channel case, the Court has admitted sworn statements as

653
evidence . Indeed, the Court noted that it “gave much attention to this

652Ibid.

653Corfu Channel (United Kingdom v. Albania), Judgment, I.C.J. Reports 1949, p. 19.

236evidenceƒŽ in the Corfu Channel decision 654. Since then, witness statements

have regularly been accepted as sources of factual evidence 655.

3.118 Consistent with this approach, what the Court actually said in Nicaragua

v. Honduras was that “the Court will not find it inappropriate as such to receive

affidavits produced for purposes of litigation if they attest to personal knowledge

of facts by a particular individualŽ 656. The Court explained that such affidavits

may be treated with a degree of “cautionŽ, depending on a number of specific

factors, including: (i) the affidavit attests to facts or only offers an opinion; (ii)

the witness’ “capacity to attest to certain factsŽ; (iii) “the utility of what is saidŽ;

(iv) when the affidavits were made; and (v) whether the affiant has an interest in

657
the outcome of the proceedings . Balancing these factors in the circumstances

of this case dictates that substantial weight be given to the witness statements

attached to Ecuador’s Memorial.

654
Ibid., p. 16. (referring to written and verbal witness statements presented by the United
Kingdom).
655
See e.g., Military and Paramilitary Activities (Nicaragua v. United States), Judgment, I.C.J.
Reports 1986, p. 42, para. 72; Armed Activities on the Territory of the Congo (Democratic
Republic of the Congo v. Uganda), Judgment, I.C.J. Reports 2005, p. 219, para. 129;
Guyana/Suriname, Arbitral Award, pp. 141-144, paras. 432-439 (2007).

656Territorial and Maritime Dispute between Nicaragua and Honduras in the Caribbean Sea
(Nicaragua v. Honduras), Judgment, I.C.J. Reports 2007, p. 731, para. 244. See also Military and

Paramilitary Activities (Nicaragua v. United States), Judgment, I.C.J. Reports 1986, p. 42, para.
68.
657
Territorial and Maritime Dispute between Nicaragua and Honduras in the Caribbean Sea
(Nicaragua v. Honduras), Judgment, I.C.J. Reports 2007, p. 731, para. 244.

2373.119 Ecuador offers the statements for the truth of the facts stated, not any

incidental opinions they might contain. To a person, the witnesses’ statements

are devoted to recounting historical facts within their personal knowledge and

experience; something they plainly have the capacity to do. In fact, there are

literally no other people in the world who are in a better position to speak to the

matters in dispute in this case; they are the ones who directly observed and

experienced the impacts of the spray that drifted across the border into Ecuador.

3.120 In this respect, the context of this case should not be forgotten. Colombia

was conducting massive aerial spraying operations in one of the more remote

corners of the planet, sparsely inhabited only by isolated communities of

impoverished peasants and indigenous peoples largely cut off from centres of

communication and commerce. But for their complaints calling attention to the

harms inflicted on them, the truth of what happened might never have come out.

Certainly Colombia … which still hides the full contents and formula of the spray

mixture, and still keeps confidential the dates and precise location of its spraying

events … would not have been forthcoming.

3.121 The testimonies are therefore highly useful. Most offer detailed accounts

of what transpired when the sprayings began, and include very specific statements

as to where they were, what they were doing and the consequences that followed.

They are not summary assertions of ultimate conclusions.

2383.122 Nonetheless, Ecuador does agree with Colombia in one respect. If,

instead of offering 37 witness statements (plus 10 more from eyewitnesses in

Colombia), Ecuador had offered only one, or even just a handful, the weight to be

accorded them would have to be assessed differently. They then might plausibly

be treated as a few isolated allegations notwithstanding the specificity with which

each is made. But that is not the case; it is not a question of each statement

standing alone. Rather, they stand together both with each other and with all the

other elements of proof that Ecuador has presented (now including the spray

flight data obtained from the United States) to form a consistent, coherent and

mutually reinforcing whole that is entitled to substantial weight.

3.123 In Ecuador’s view, it is this consistency that makes the statements so

remarkable. They describe phenomena that are similar in all material respects.

Their descriptions of the sprayings themselves, for example, are remarkably

consistent though, of course, never precisely the same. Witness 37 from Mataje

near the Pacific Coast, describes seeing the spray planes for the first time as

follows: “The first time was in the year two thousand. I was working on my

farm, at the edge of the river. I saw several planes and some helicopters coming

from the Colombian side, dropping a liquid. The liquid looked like smoke and it

658
fell on the ground and on my body, it looked shinyŽ . More than 250 kilometres

away in Sucumbíos, Witness 2 from Salinas describes the spraying that he

658Witness 37 Declaration, op. cit. EM, Vol. IV, Annex 220.

239observed thusly: “I could observe maybe four planes and some helicopters

passing by the San Miguel River and, when turning around, they would fly over

Ecuadorian territory. The planes were flying, dropping a white liquid that with

the wind came quickly toward usŽ 659.

3.124 The witnesses were equally consistent in their portrayal of the spray mist

itself. Invariably, it was described as appearing “whiteŽ, “like smokeŽ or “a

cloudŽ 660. Many specifically reported seeing it drift across the border and

watching it land in Ecuadorian territory, including directly on them. It was

uniformly described as “foul-smellingŽ, and looking “greasyŽ or “like a light

oilŽ661. Some even gave minute descriptions of the spray droplets that can only

have come from direct experience. As Witness 33 from Mataje described the

659
Declaration of Witness 2, 16 Jan. 2009 (hereinafter “Witness 2 DeclarationŽ). EM, Vol. IV,
Annex 190.
660
Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 3 Declaration, op. cit. EM,
Vol. IV, Annex 191; Witness 5 Declaration, op. cit. EM, Vol. IV, Annex 193; Witness 8
Declaration, op. cit. EM, Vol. IV, Annex 196; Witness 9 Declaration, op. cit. EM, Vol. IV,
Annex 197; Witness 12 Declaration, op. cit. EM, Vol. IV, Annex 200; Witness 13 Declaration,
op. cit. EM, Vol. IV, Annex 201; Declaration of Witness 14, 17 Jan. 2009 (hereinafter “Witness

14 DeclarationŽ). EM, Vol. IV, Annex 202; Witness 17 Declaration, op. cit. EM, Vol. IV, Annex
203; Witness 20 Declaration, op. cit. EM, Vol. IV, Annex 206; Witness 22 Declaration, op. cit.
EM, Vol. IV, Annex 208; Witness 23 Declaration, op. cit. EM, Vol. IV, Annex 209; Witness 26
Declaration, op. cit. EM, Vol. IV, Annex 210; Witness 27 Declaration, op. cit. EM, Vol. IV,

Annex 211; Witness 28 Declaration, op. cit. EM, Vol. IV, Annex 212; Witness 29 Declaration,
op. cit. EM, Vol. IV, Annex 213; Witness 31 Declaration, op. cit. EM, Vol. IV, Annex 215;
Witness 32 Declaration, op. cit. EM, Vol. IV, Annex 216; Witness 33 Declaration, op. cit. EM,
Vol. IV, Annex 217; Witness 34 Declaration, op. cit. EM, Vol. IV, Annex 218; Witness 36
Declaration, op. cit. EM, Vol. IV, Annex 219; Witness 38 Declaration, op. cit. EM, Vol. IV,

Annex 221; Witness 39 Declaration, op. cit. EM, Vol. IV, Annex 222.
661Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 23 Declaration, op. cit. EM,

Vol. IV, Annex 209; Witness 32 Declaration, op. cit. EM, Vol. IV, Annex 216; Witness 3
Declaration, op. cit. EM, Vol. IV, Annex 191.

240spraying, “I saw them releasing something that looked like a cloud, but when it

662
fell on the grass it was shiny, oily and it stayed on the plantsŽ .

3.125 The witnesses’ descriptions of what happened after the sprayings are also

mutually corroborating. The description of the specific symptoms of skin

irritation … the burning itch, the bumps, the pus upon scratching … are remarkably

consistent despite the witnesses’ distance from each other and relative isolation.

Witness 31, a Cofán from a remote village in the Cofán-Bermejo Reserve stated,

“[i]t was there when the smoke also fell on the clothes and that continued to

affect our skin. That lasted for about two weeks, first we had small bumps and

663
then a week later they burst. The bumps itched a lotŽ . Across the country in

Mataje, Witness 34 testified that “the liquid also fell on me, on my head, arms,

and all over my body. Immediately, I felt my skin itch intensely. My whole body

was itching. Above all, my face became very swollen . . . I also got bumps all

664
over my skin. I had a rash that burned and my skin peeled quite a bitŽ . The

witness statements are also consistent with the known reactions to the chemicals

665
in the spray mixture . The flight path data further affirm that the villages in

which these witnesses resided were the same villages exposed to Colombia’s

662Witness 33 Declaration, op. cit. EM, Vol. IV, Annex 217.
663
Witness 31 Declaration, op. cit. EM, Vol. IV, Annex 215.
664
Witness 34 Declaration, op. cit. EM, Vol. IV, Annex 218.
665See supra Chap. 3, para. 3.25; EM pp. 132-152.

241spraying, and at the same time that the witnesses say they observed the spray

planes in operation.

3.126 The witness testimonies are equally consistent in their descriptions of the

effects the sprayings had on plants. They invariably described how each different

variety of crops they had planted showed the same signs of damage following the

sighting of the spray planes and the deposition of the spray mixture. The

witnesses provide similar details of the plants becoming yellow, often starting

666
with the leaves, until completely wilted . Upon opening the crop’s fruits, the

667 668
insides were found to be rotten . There were also reductions in crop yields .

666
Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 2 Declaration, op. cit. EM,
Vol. IV, Annex 190; Witness 5 Declaration, op. cit. EM, Vol. IV, Annex 193; Declaration of
Witness 6, 16 Jan. 2009 (hereinafter “Witness 6 DeclarationŽ). EM, Vol. IV, Annex 194;
Declaration of Witness 7, 16 Jan. 2009. EM, Vol. IV, Annex 195; Witness 8 Declaration, op. cit.

EM, Vol. IV, Annex 196; Witness 9 Declaration, op. cit. EM, Vol. IV, Annex 197; Witness 12
Declaration, op. cit. EM, Vol. IV, Annex 200; Witness 17 Declaration, op. cit. EM, Vol. IV,
Annex 203; Witness 22 Declaration, op. cit. EM, Vol. IV, Annex 208; Witness 23 Declaration,
op. cit. EM, Vol. IV, Annex 209; Witness 30 Declaration, op. cit. EM, Vol. IV, Annex 214;
Witness 32 Declaration, op. cit. EM, Vol. IV, Annex 216; Witness 37 Declaration, op. cit. EM,

Vol. IV, Annex 220.
667
Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 4 Declaration, op. cit. EM,
Vol. IV, Annex 192; Witness 8 Declaration, op. cit. EM, Vol. IV, Annex 196; Witness 13
Declaration, op. cit. EM, Vol. IV, Annex 201; Witness 36 Declaration. EM, Vol. IV, Annex 219.
668
Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 4 Declaration, op. cit. EM,
Vol. IV, Annex 192; Witness 6 Declaration, op. cit. EM, Vol. IV, Annex 194; Witness 8
Declaration, op. cit. EM, Vol. IV, Annex 196; Witness 12 Declaration, op. cit. EM, Vol. IV,
Annex 200; Witness 17 Declaration, op. cit. EM, Vol. IV, Annex 203; Declaration of Witness 19,

17 Jan. 2009 (hereinafter “Witness 19 DeclarationŽ). EM, Vol. IV, Annex 205.

2423.127 In addition to the mutually corroborating details of the signs of damage

shown by the plants, what is notable is that all plants were indiscriminately

affected. As described by Witness 30 of Mataje, Esmeraldas:

“After the sprayings, my crops were affected. Eight days after the

sprayings, the leaves on the cacao tree started falling off, until not
a single leaf was left; the tree dried up completely and it died. The
same thing happened with the yucca. Within three days, the leaves

fell off the yucca and even the root rotted; the root smelled. The
guineo also dried up, the leaves were drying up and withering.
The plants turned yellow. After a few weeks, everything was
669
dead. All the plants were dead on the groundŽ .

3.128 In the remote reaches of the protected Awá Indigenous and Forest

Reserve, the symptoms were the same following the appearance of the spray

planes. Witness 40 testifies:

“It was probably five days later that some hectares of the natural
forest, near the Mataje River, died. Three days later the plants

began to dry up and fall off, as if they were burned. The leaves
fell off the plants and all the branches died. All the plants, big and

small, were destroyed. Several species of wild plants that were in
that hectare died. I estimate that at least some thirty species of
plants that died were used by us in the Awá traditional medical
670
treatmentsŽ .

3.129 The damage suffered by numerous species is consistent with exposure to a

671
broad spectrum herbicide, not to plant disease or insect infestation .

669Witness 30 Declaration, op. cit. EM, Vol. IV, Annex 214.

670Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223.
671
See Weller Report, op. cit., p. 3. ER, Vol. II, Annex 3.

2433.130 Ecuador observes further that many of the witnesses offer the same or

similar esoteric details that further highlight the credibility of their accounts. A

number, for instance, recount that the yellowing of the plants in many cases

began at the top of the plant and worked its way down to the ground. After

describing the effect on his crops, Witness 18 from San Francisco 1, states:

“I had never seen this type of disease before. When bugs attack
the plants, they do it from the root towards the top. In this case,

the plants were dying from top to bottom. Besides, I had seen on
some occasions in the past that when the plants get sick, only one
species is attacked, without affecting other plants. But, during

those 672s, all the plants were affected, from pasture to fruit
treesŽ .

3.131 In a similar way, Witness 1 of Salinas recounts that:

“the tallest fruit trees . . . were the first to dry up at the top. They
did not die completely although they did dry up, and no longer
produced fruit. The plantain trees were also destroyed quickly.

The plantain, planted next to my house, which is a few meters
from the river, died first. The plant was undernourished, falling to
one side and the fruit started to dieŽ673.

3.132 Still others are frank in admitting that as bad as the damage was in

Ecuador, it was even worse on the Colombian side of the border, precisely as one

would expect because of its closer proximity to the spray target. Witness 10, a

Colombian resident who had earlier moved to Sucumbíos testifies, for instance,

that “[i]n San Miguel and Dios Peña, one can see the same effects from the

672Witness 18 Declaration, op. cit. EM, Vol. IV, Annex 204.

673Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189.

244fumigations; after the liquid is left in the air, plants, animals and people get sick.

674
In Colombia the effect is the same as in Ecuador but a little more excessiveŽ .

Further to the west in Salinas, Sucumbíos, Witness 1 echoes this testimony: “from

my house, one can see the river and Colombia. On the other side, I noticed that

the trees were yellow, dry, and dead. It was very similar to what had happened to

my crops, it looked like a trail of destruction; although, the Colombian side was

slightly more severeŽ 675.

3.133 Unable to rely on their crops to feed themselves, the residents had to buy

their food. By afflicting their domestic animals too, however, the sprayings left

them with less money to do so. As explained by anthropologists familiar with the

region, the border residents often use animals as a form of “bank accountŽ, in

676
which they invest their earnings and then sell when money is needed . The

witness statements provide accounts with mutually enforcing details of the

illnesses that befell their animals and the consequences to their families. In

Salinas, Witness 2 testified: “In the following years, they sprayed again and we

lost what little we had over again. History repeated itself: children became sick

again and the animals lost their hair and died. Fifty percent of my chickens died,

674
Witness 10 Declaration, op. cit. EM, Vol. IV, Annex 198.
675Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189. See also Witness 19 Declaration, op.

cit. EM, Vol. IV, Annex 205. “It was incredible. On the Colombian side, the land was a desert,
where it used be to full of forest. Everything, but everything, was dead . . .Ž
676
See Whitten et al. Report, op. cit., p. 12. ER, Vol. II, Annex 5.

245 677
the same with the fishŽ . Notably, many of the witnesses, including residents

from the villages of Puerto Mestanza, Mataje, Mataje Alto of the Awá Reserve,

and Salinas share their recollections of the spray’s particularly deadly effect on

fish678.

3.134 The indigenous witness statements corroborate these observations, with a

particular emphasis on the spray’s effects on wild animal species. As recounted

by a Cofán resident of the Cofán-Bermejo Reserve: “The chickens that I had

would vomit everything they ate, shake and then die, now I do not have many

chickens. We also saw many of the jungle birds become stiff and fall dead to the

679
ground, we saw this about four days after the sprayingŽ .

3.135 Ecuador submits that the coherence and consistency of the witness

statements it has offered are particularly probative in the circumstances of this

case. As stated, both Parties agree that Ecuador’s border regions are among the

least developed areas of the country. Their chronic lack of basic infrastructure,

including transportation and communication, has made them, in Colombia’s

677Witness 2 Declaration, op. cit. EM, Vol. IV, Annex 190.

678See, e.g., Witness 2 Declaration, op. cit. EM, Vol. IV, Annex 190; Witness 10 Declaration, op.
cit. EM, Vol. IV, Annex 198; Witness 39 Declaration, op. cit. EM, Vol. IV, Annex 222; Witness

40 Declaration, op. cit. EM, Vol. IV, Annex 223.
679Witness 31 Declaration, op. cit. EM, Vol. IV, Annex 215.

246words, “virtually isolated from the rest of the countryŽ 680. Exactly right. As

Ecuador previously observed in its Memorial: “Roads are usually no more than

hardened dirt paths and, where it exists at all, public transportation (via an

occasional bus) is scarce and infrequent. Communication with the outside world,

and even other villages in the region, is generally limited to periodic radio

681
contactŽ . It is precisely for this reason that the parallels among the witness

accounts … from diverse individuals of indigenous, Afro-Ecuadorian and mestizo

origin, spread out along the border and physically cut-off from one another … are

so remarkable.

3.136 Whatever their origin or wherever they live, be it in Esmeraldas, the

scattered outposts along the Sucumbíos-Putumayo border or the indigenous

reserves in the region, the Ecuadorian witnesses offer consistent accounts of the

effects Colombia’s sprayings have had on their health, their crops, their animals

and the wild flora and fauna. Colombia would like the Court to believe that these

similarities represent a collective delusion, or even a mass conspiracy. But the

truth is that achieving the coordination necessary to produce such compelling

commonality is quite literally impossible in the remote, impoverished frontier

regions. In the end, the only plausible explanation is the simplest: the witnesses

680CCM, Chap. 2, para. 2.13; see also CCM, Chap. 2, para. 2.15 (stating that “their present
difficulties are a continuation of long-term isolation . . .Ž).
681
EM, Chap. 2, para. 2.24.

247are accurately recounting that the spray drifted into Ecuador, and that it impacted

them and their surroundings in the ways they have described.

3.137 Throughout the Counter-Memorial, Colombia intimates that the region’s

remoteness and poverty make it impossible to tease out the harms the sprayings

have caused. Things were already so bad, Colombia suggests, that it is more

plausible to believe that the harms the witnesses identify represent a natural

outcome in these already poor conditions than that they are the effects of its

682
sprayings . Colombia’s argument in this respect ties into its broader argument

that, to the extent they express an opinion as to causation, the witness statements

683
presented with the Memorial are entitled to “no weightŽ .

3.138 As a matter of law, Ecuador certainly agrees that the witnesses are not

qualified as experts to offer a scientific opinion on the question of causation. But

Colombia’s argument misses a key point. While the witnesses’ opinions on

causation, as such, may not constitute proof in and of themselves 684, their

statements of fact constitute evidence from which conclusions about causation

682
See CCM, Chap. 7, para. 7.37 (“[I]t is impossible to tell whether the ailments complained of …
in particular gastrointestinal disorders such as vomiting and diarrhea … resulted from the
sprayings, or whether they were due to other causes which are common among poorly nourished
populations living in precarious hygienic conditionsŽ.).

683CCM, Chap. 7, para. 7.127.
684
Military and Paramilitary Activities in and against Nicaragua (Nicaragua v. United States of
America), Judgment, I.C.J. Reports 1986, para. 68 (“An opinion expressed by a witness is a mere
personal and subjective evaluation of a possibility . . . it may, in conjunction with other material,
assist the Court in determining a question of fact, but is not proof in itselfŽ.).

248may be drawn, by experts and most importantly by the Court. In Ecuador’s view,

the witness statements offer convincing factual evidence relevant to the issue of

causation. To a person, the witnesses testify that before the sprayings one state of

affairs existed and after the sprayings, in close proximity to them, and after

observing the spray fall inside Ecuador, a different state of affairs came into

being. The change they all speak of coincided precisely with the advent of

Colombia’s aerial sprayings, and precisely with the known effects of glyphosate

and POEA. This is compelling evidence from which conclusions as to cause and

effect may be drawn by the Court.

3.139 Just two examples will suffice for present purposes. Witness 4 from

Salinas, Sucumbíos states:

“In a short period of time, they sprayed for several days, on our

community and neighbouring communities. Usually, they
fumigated during the day and on clear days, and not when it was
rainy. On my farm I had planted about twelve hectares of pasture

land, plantain, yucca, coffee, and cacao. The spraying completely
ruined all of it. A few days after the spraying, the plants started to
turn yellow and then they turned black and died. I had never
experienced anything like that. I tried to save the crop with

fertilizers but it did not work, and we lost everything . . . . Before
the fumigations, a hectare of coffee would yield sixty quintals, and
a hectare of maize would yield forty quintals. Now, the coffee
yields about five quintals per hectare, and the maize about two

quintals. Never before, not even in the cas685f a drought or in the
rainy season, had the land yielded so littleŽ .

685
Witness 4 Declaration, op. cit. EM, Vol. IV, Annex 192.

249In a similar vein, Witness 41, an Awá resident of the Reserve in Esmeraldas

declares:

“Before the spraying, we were healthy. But after the spraying,

many people in my community became sick. Some of the people
in the community had bumps all over their bodies. It was strange,

I had not seen that before . . . . Not only were the people affected
but the animals were too. After the spraying, many of the chickens
that we raised became sick, they would not walk but rather

remained seated, and within a few days some of them died. The
chicks either remained small or did not survive . . . . After the
sprayings, all the crops began to dry up. They turned yellow two

or three days after the sprayings. The leaves of the sugarcane
became withered and they fell off. The yucca leaves also
withered, and the maize completely died within a week after the

sprayings. The community used to live off the crops that grew in
our land, but after the sprayings we lost several crops such as
maizeŽ 686.

3.140 Ecuador considers this particularly probative factual evidence of causation

in the circumstances of this case. As stated, the subsistence farmers and

indigenous peoples alike are tied to the land and the rhythms of nature. Many

testify that they have lived on the land in the same location for their entire lives.

Indeed, for indigenous populations, the tie with “mother earthŽ is a central

687
component of their culture . As such, they are finely attuned to even minor

686
Witness 41 Declaration, op. cit. EM, Vol. IV, Annex 224. See also Witness 3 Declaration, op.
cit. EM, Vol. IV, Annex 191.
687
See Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223; Declaration of María Blanca
Chancosa Sánchez, 14 Jan. 2009. EM, Vol. IV, Annex 187; Whitten et al. Report. ER, Vol. II,
Annex 5. (e.g., p. 20, “ƒCofán people do not believe that they would be able to maintain their
culture and identity without residing in their traditional territory’s mountain and lowland
ecosystems. In their native language of A’ingae, Cofán call themselves tsampini can’jensundeccu
(dwellers of the forest). In their political discourse, Cofán leaders proclaim, ‘Without our Forest,
which has been the one constant throughout our history, we are no longer Cofán.’ Cofán language,

250disruptions in the environment. They are thus uniquely well-qualified to speak to

the health of the environment over time and how the changes they observed

coincide with the introduction of noxious external elements. Notably,

international tribunals have not shied away from assigning witness testimony

from indigenous populations significant probative value based on their intimate

688
relationship with the subject-matter of their testimony . As the distinguished

arbitral tribunal noted in the Abyei arbitration:

“One other potential source of evidence is witness testimony. For
its part, the [Government of Sudan] has criticized the reliability of

witness evidence. This Tribunal agrees that where the witnesses
rely on knowledge passed down through one or two generations,
the precise dating of the evidence which they supply may

sometimes be difficult. Nevertheless, depriving witness evidence
per se of all probative value would be unjustifiable. When

defining the historic area of a tribe, an inherently difficult exercise,
it is reasonable, and indeed quite logical, to seek information from
the tribe members themselvesŽ 689.

3.141 Colombia appears to take issue with demonstrating causation, at least in

part, in this manner. Instead, Colombia contends that if it has not been measured

and observed in a laboratory, it does not count. This is not only a new rule of

evidence, invented by Colombia for this case; it is an entirely inappropriate one,

cosmology, social life, healing practices, and subsistence patterns interweave profoundly with the
Amazonian environmentŽ.).
688
The Government of Sudan/The Sudan People's Liberation Movement/Army (Abyei Arbitration),
Arbitral Award, pp. 247, 256, paras. 717, 742 (22 July 2009); Case of the Indigenous Community
Yakye Axa v. Paraguay, Judgment, IACHR, Series C No. 125, para. 201 (17 June 2005).
689
The Government of Sudan/The Sudan People's Liberation Movement/Army (Abyei Arbitration),
Arbitral Award, pp. 247, para. 717 (22 July 2009) (emphasis added).

251especially in this case. Indeed, it is ironic in the extreme for Colombia to argue

that only scientific data can be considered: to this day, Colombia has never

truthfully acknowledged what is … or was … in the spray mixture, particularly in

the period when the evidence shows the chemicals were even more toxic than in

690
later years . How can it be demonstrated scientifically which unidentified

substances caused what harms? No litigating State can be expected to hit an

invisible (indeed, hidden) target. Moreover, Colombia never gave Ecuador

advance … or even after-the-fact … notice of the dates when and locations where

sprayings were carried out. Ecuador was thus never in a position to have

scientific personnel on-site ready to collect spray samples as they wafted over the

border and settled on people, plants, animals, water bodies and the ground.

3.142 Colombia’s argument is also legally incorrect. Notably, the Counter-

Memorial cites no authority for the proposition that only scientific evidence

counts … because there is no such authority. In this case, as in all cases, it is for

the Court to “[e]xamine all the facts relevant to each of the component elements

of the claims advanced by the Parties. In so doing, it will identify the documents

relied on and make its own clear assessment of their weight, reliability and

valueŽ 69. Thus, as the Court recently reaffirmed in the Pulp Mills case, “in

690
See supra Chap. 2, paras. 2.17-2.63.
691Armed Activities on the Territory of the Congo (Democratic Republic of the Congo v. Uganda),

Judgment, I.C.J. Reports 2005, pp. 200-201, para. 59. See also Military and Paramilitary

252keeping with its practice, the Court will make its own determination of the facts,

on the basis of the evidence presented to it, and then it will apply the relevant

692
rules of international law to those facts which it has found to have existedŽ .

The extent of scientific evidence must be weighed in connection with the record

as a whole. This is particularly true in the circumstances of the present case,

where obtaining corroborative physical evidence in the field is unusually difficult

because of the remoteness of and lack of resources in the areas involved, and the

rapidity with which glyphosate dissipates into soil or water.

3.143 In any event, as described above, there is abundant scientific evidence

linking Colombia’s aerial spraying to the specific harms to people, animals,

plants and the environment reported in the witness testimonies, and in

contemporaneous reports by the news media and NGOs who visited the affected

693
areas , not least of which is the fact that the internationally accepted drift model

predicts deposition of herbicide far into Ecuador in amounts that can cause

serious harm 694.

Activities (Nicaragua v. United States), Judgment, I.C.J. Reports 1986, p. 40, para. 60; Case
Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, p. 52, para. 168.
692
Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, p. 52,
para. 168.
693
See supra Chap. 3, paras. 3.25, 3.44. 3.46, 3.54, 3.89.
694See supra Chap. 2, paras. 2.198-2.203/

2533.144 Interestingly, Colombia’s otherwise strident Counter-Memorial is notably

timid on the subject of what else, other than its sprayings, may have caused the

harms universally described by the witnesses and corroborated by multiple

contemporaneous accounts and impartial investigations. Colombia identifies just

two other possible culprits: first, the deleterious effects of coca cultivation; and

second, environmental contamination caused by the exploration for and

exploitation of petroleum. Neither alternative Colombia identifies is a plausible

cause of the harms suffered by the witnesses.

3.145 Colombia seems particularly enamoured of its claim that the harms

identified may be the result of coca cultivation. It offers this as a possible

explanation repeatedly in both Chapters 1 and 7 of the Counter-Memorial. In

Chapter 1, it states: “Health problems in the border area may . . . have something

to do with the very reasons for the spray program, since the unlawful cultivation

of coca plants carries a serious risk of personal injury poisoning by much more

toxic chemicals and harm to the environmentŽ 695. And in Chapter 7 it repeats:

“Alternatively, [the ailments complained of] may be the result of the much more

toxic chemicals used in the cultivation and processing of coca in those areasŽ 696.

695CCM, Chap. 1, para. 1.38; see also ibid., para. 1.39.

696CCM, Chap. 7, para. 7.37.

2543.146 The trouble for Colombia is that, unlike Colombia, Ecuador does not have

a coca cultivation problem. According to the reports of the United Nations Office

on Drugs and Crime (“UNODCŽ), there is no significant cultivation of coca in the

697
northern border regions of Ecuador (or anywhere else in Ecuador) . This

absence of coca cultivation in Ecuador is reflected in the following graphic,

Figure 3.8, from the UNODC report entitled Coca Cultivation in the Andean

Region, a Survey of Bolivia, Colombia, Ecuador and Peru, published in June

2007 (shortly after Colombia stopped aerial spraying within 10 kilometres of the

border with Ecuador); the graphic itself is captioned “Coca cultivation density in

698
the Andean Region, 2006Ž . As the Court can see, unlike Colombia, there are

no concentrations of coca cultivation in Ecuador.

3.147 In 2010, the UNODC stated in its World Drug Report that “surveys

implemented by UNODC in cooperation with the Government of Ecuador in

2006 and 2008Ž covering the “provinces in the north of Ecuador bordering

ColombiaŽ, had “confirmed that the level of coca cultivation was

insignificantŽ699. Colombia offers no evidence to the contrary; it makes no

attempt at showing that there is any coca cultivation on Ecuador’s side of the

697United Nations Office on Drugs and Crime, World Drug Report 2010, p. 161 & n.1 (2010).
ER, Vol. IV, Annex 110.
698
United Nations Office on Drugs and Crime, Coca Cultivation in the Andean Region, A Survey
of Bolivia, Colombia, Ecuador and Peru, p. 2 (June 2007). ER, Vol. IV, Annex 108.
699
United Nations Office on Drugs and Crime, World Drug Report 2010, p. 161 & n.1 (2010).
ER, Vol. IV, Annex 110.

255 Coca Cultivation Density in the Andean Region, 2006

Regional Overview

Map 1: Coca cultivation density in the Andean Region, 2006

80°W 70°W Colombia

Caribbean Sea Peru

10°N Bolivia 10°N
Catatumbo
N A M A
PA
South America

Norte de VENEZUELA
Antioquia

Atrato
GUYANA
COLOMBIA
^ Meta
Bogota Vichada
Magdalena Guaviare

Meta -

Guaviare

Nariño

Putumayo -
0° 0°
Caquetata

ECUADOR ay o

Amazonas

BRAZIL
Marañon

Alto Ucayali
Huallaga
Huallaga

10°S Purus 10°S
PERU
Ene
UrubLa Convencion
Lima ^
Apurimac and Lares Madre de Dios Mamore
Ene Guapare

Pacific Beni
Apurimac

Ocean

Titicaca Yungas
Lake

Chapare
^
La Paz

BOLIVIA

Cultivation density
(ha/km )2

0.1 - 1.0
20°S 20°S
1.1 - 4.0 Pilcomayo
> 4.0 PARAGUAY
International 0 250 500
km
boundaries Geographic coordinates WGS 84
Department CHILE

boundaries ARGENTINA
80°W 70°W 60°W

Sources: National monitoring systems supported by UNODC - Governments of Bolivia, Colombia and Perú
The boundaries and names shown and the designations used on this map do not imply official endorsement or acceptance by the United Nations

Figure 3.8border. Colombia’s would-be alternative explanation for the harms experienced

in Ecuador is thus not viable.

3.148 Equally without basis is the Counter-Memorial’s suggestion that

hydrocarbon exploration and exploitation activities are to blame for the harms

described in the Memorial 70. There is no petroleum activity in Esmeraldas

Province, where harms following Colombia’s spraying campaigns have

repeatedly resulted. And there is certainly no oil exploration in the Cofán-

Bermejo Ecological Reserve, the Awá Indigenous Reserve or the Cayapas-Mataje

Ecological Reserve … all of which are documented by the evidence as having

suffered the same effects following Colombia’s aerial spraying in close proximity

to those locations. Insofar as other parts of Ecuador have suffered environmental

degradation associated with petroleum production in Sucumbíos, they are

generally remote from the areas of Sucumbíos affected by Colombia’s spraying.

3.149 Colombia provides not a shred of evidence to support its argument that the

harms suffered in Ecuador are attributable to some cause other than its aerial

spraying of toxic chemicals in close proximity to the border under operating

conditions guaranteed to produce spray drift into Ecuador. There is not a single

fact to show that the injuries resulted from the (non-existent) cultivation of coca

on the Ecuadorian side of the border; or from petroleum production far removed

700CCM, Chap. 2, para. 2.31.

256from the places where injuries occurred; or from malnutrition, poverty, lack of

infrastructure, presence of illegal armed bands, or any of the other potpourri of

hypothetical possibilities thrown out by Colombia to avoid responsibility for the

harms the evidence shows it has caused. To the extent that Colombia asserts that

other causes may have contributed to these harms, it bears the onus of providing

the necessary proof, and it has manifestly failed to do so.

3.150 In the end, despite Colombia’s efforts to rid itself of the evidence of harm

by any means available, the outcome remains the same. The witness statements

and numerous other sources of evidence of harm are more than admissible, they

are undeniable. The consistent corroboration of the harm inflicted by Colombia’s

spraying seen across the spectrum of witness statements, NGO and UN reports,

newspaper articles, and more, only strengthens their probative weight and furthers

the unavoidable conclusion that Colombia’s repeated spraying of chemical

herbicides along the border caused harm to the people, plants, and animals of

Ecuador.

Section III. The Evidence of Harm Caused in Colombia Corroborates the
Evidence of Harm Caused in Ecuador

3.151 The evidence of the harm that Colombia’s aerial sprayings have caused in

Ecuador is further corroborated by the evidence of the damage they have inflicted

257 701
in Colombia itself. As initially described in the Memorial and demonstrated

further below, the sprayings have caused precisely the same sorts of harms in

Colombia as they have in Ecuador, although they have been more severe on the

Colombian side of the border because there have been more of them and they

have been carried out directly over Colombian territory. In Ecuador’s view, this

fact is relevant for at least two reasons. First, the evidence of harm from

Colombia validates the evidence from Ecuador. Taken together with the other

elements of proof, the Colombian evidence adds to the corpus of consistent,

mutually reinforcing evidence that proves Ecuador’s case. Second, and relatedly,

it underscores the cause-and-effect relationship between the sprayings and the

harms in Ecuador. Put simply, the fact that the sprayings caused nearly identical

harms in Colombia shows that they are, in fact, the injury-causing agent in

Ecuador as well.

3.152 Before proceeding further, a threshold point must be dispensed with. The

Counter-Memorial professes confusion about whether or not, by invoking harms

in Colombia, Ecuador purports to be bringing claims on behalf of Colombian

702
nationals in addition to its own citizens . Indeed, the Counter-Memorial spends

703
no less than nine pages of Chapter 1 voicing its confusion . But Ecuador

701EM, Chap. 5. paras. 5.100-5.115.
702
CCM, Chap. 1, paras. 1.14-1.25.
703
CCM, Chap. 1, paras. 1.14-1.25.

258specifically addressed this issue in the Memorial, stating: “Ecuador, of course, is

not before the Court to press claims on behalf of the people of Colombia. The

harms inflicted in Colombia nonetheless merit the Court’s attention because they

constitute proof of the impacts of the spray mixture Colombia employsŽ 70.

Under the circumstances, Ecuador considers that there is no serious basis for the

confusion Colombia claims to be afflicted by. Although it is wholly unnecessary,

Ecuador here reiterates that it brings claims only on behalf of its own citizens.

The evidence of harm in Colombia is invoked for corroborative purposes only.

3.153 Curiously, even as it professes confusion about why Ecuador is offering

evidence of events in Colombia, the Counter-Memorial makes the converse

argument; that is, it argues that Ecuador’s case is not credible because the

sprayings have not caused any appreciable harm in Colombia. At paragraph 1.34

of the Counter-Memorial, for example, Colombia states:

“If mere drift of the spraying mixture across the border into
Ecuador had caused the catalogue of harms recited by Ecuador,

what would be the position in Colombia itself, the actual target of
many thousands of spray missions over 10 years? The result would
be carnage, hundreds if not thousands of deaths of humans and
705
large animals, environmental devastation, economic collapseŽ .

3.154 As detailed further in the paragraphs to follow, this description is, sadly,

not far from the truth, although more exaggerated. For present purposes the point

704EM, Chap. 5, para. 5.101.

705CCM, Chap. 1, para. 1.34(1).

259is simply that with this argument, Colombia itself recognizes that what happened

in Colombia is relevant to understanding what happened in Ecuador. Elsewhere

in the Counter-Memorial, Colombia helpfully articulates just why that is so. At

paragraph 7.43, it states: “It bears emphasizing again that in the aerial sprayings

carried out up until 2007 over Colombian territory situated close to the border

with Ecuador, exactly the same modalities, mix and procedures as were applied in

706
the rest of the Colombian territory were usedŽ . In Ecuador’s view, it is

precisely for this reason that the evidence of harm in Colombia sheds important

light on the question of harm in Ecuador. Since the same spray mixtures and

operational procedures were employed, the fact that the same injuries were

caused in Colombia underscores the cause of the harm in Ecuador.

3.155 Aside from professing confusion about why Ecuador presents evidence of

the harms the sprayings have caused in Colombia, the Counter-Memorial has

little to say by way of rebutting the facts Ecuador introduced. As demonstrated in

the Memorial, the damage the sprayings have caused in Colombia is borne out by

reports of international observers and civil society organizations,

contemporaneous news reports and even the findings of organs of the Colombian

government not engaged in the execution of the aerial spraying programme 707.

Rather than respond, the Counter-Memorial elects to disregard this important

706CCM, Chap. 7, para. 7.43.

707EM, Chap. 5. paras. 5.100-5.115.

260evidence. In Ecuador’s view, Colombia’s failure to engage on the point speaks as

powerfully as anything it does say in its otherwise ample Counter-Memorial.

3.156 Many of the most alarming reports of damage within Colombian territory

come from the Colombian authorities themselves. Because they constitute

official statements against interest, these reports are entitled to great weight. As

the Court stated in the Case Concerning Military and Paramilitary Activities in

and against Nicaragua (Nicaragua v. United States of America):

“The Court takes the view that statements of this kind, emanating
from high-ranking official political figures, sometimes of the

highest rank, are of particular probative value when they
acknowledge facts or conduct unfavorable to the State represented
by the person who made them. They may be construed as a form
708
of admissionŽ .

3.157 Ecuador brought many such examples to the Court’s attention in its

Memorial. Rather than revisit them here, it respectfully refers the Court to the

709
relevant sections of the Memorial cited in the footnote below . For purposes of

this Reply, a few additional examples will suffice.

708
Military and Paramilitary Activities in and against Nicaragua (Nicaragua v. United States of
America), Judgment, I.C.J. Reports 1986, p. 41, para. 64.
709See EM, Ch. 5, paras. 5.102-5.108; Comptroller General of the Republic of Colombia,

Comptroller for the Environment, Special Audit Regarding Illicit Crop Eradication Policies, p. 34
(July 2001) (“This drift effect is the result of the combination of different technical and
meteorological variables that make this strategy highly susceptible to errFactors like the
height of spraying, the velocity and direction of the wind and the relative humidity are difficult to
control, which affects the precision of the sprayingsŽ.). EM, Vol. II, Annex 93; Republic of
Colombia, Administrative Department of Health (DASALUD) Putumayo Province, Office of

2613.158 In 2000, the Colombian Ombudsman Delegated for Collective Rights and

Environment wrote to Colombia’s Minister of Environment to express his

concern about the severe impacts caused by the aerial spraying program:

“In the last two years, the number of complaints arising primarily
from the departments of Guaviare, Putumayo and Cauca have
increased. ƒ In many of these cases, a critical situation in the

regions after conducting fumigation programs can be observed.
The affectation of illicit crops as well as the destruction of legal

crops leave whole groups of humans without any sustenance,
waves of insecurity and violence are unleashed, valuable

Planning, Epidemiology Section, Effects of Aerial Spraying with Glyphosate Valle del Guamuez –
San Miguel – Orito, Putumayo, p.2 (Feb. 2001) (hereinafter “DASALUD Putumayo Health
StudyŽ) (“According to information from the Administrator of the La Dorada Health Center in the
municipality of San Miguel, in the town of Agua Clara the poisoning of people exposed to the
fumigations was apparent, with symptomology related to skin and eye irritation, nausea, and acute

respiratory infection, as well as bronchitis, the flu, colds, and abdominal pain, among others,
which corresponds to the findings of epidemiological studies carried out in other placesŽ.). EM,
Vol. II, Annex 90; Republic of Colombia, Office of the Ombudsman, Ombudsman Report No. 1,
Fumigations and Alternative Development Projects in Putumayo, pp. 9-10 (9 Feb. 2001)
(hereinafter “Colombia Ombudsman Report No. 1Ž). EM, Vol. II, Annex 91; see also ibid., p. 11

(“Indiscriminate destruction of the little remaining forest, of subsistence crops and medicinal
plants, as well as of pastures and fish-farming ponds, among othersŽ.); Republic of Colombia,
Office of the Ombudsman, Ombudsman Resolution No. 4, On the Impact of Fumigations on 11
Alternative Development Projects in Putumayo, p. 5 (12 Feb. 2001) (“the fumigations condemned
by this resolution destroyed not only the illicit crops … the target of manual eradication … but also

other species necessary for the household subsistence of the beneficiaries of the pacts. Now, these
people and communities are facing both the ruin of their household finances as well as a severe
food security problem. Given the precarious conditions of this group of people, the action by the
State gives rise to a violation of their right to subsistence, which translates into a serious harm to
the physical integrity and dignity of the family and its membersŽ.). EM, Vol. II, Annex 92;

Republic of Colombia, Office of the Ombudsman, Ombudsman Resolution No. 28, The Coffee
Crisis and the Possible Fumigations in the Province of Caldas, pp. 23-25 (21 May 2003)
(footnotes removed). EM, Vol. II, Annex 97. Of course, there is abundant additional evidence
from other sources in Colombia regarding the harm to health and the environment caused by the
aerial spraying. See, e.g., Marcella Ceballos & Carlos Duarte, Report of the Observation Mission

on the Human Rights Situation in Lower Putumayo, pp. 15-16 (June 2008). EM, Vol. IV, Annex
171; Declaration of Colombia Witness 3, 20 Feb. 2009. EM, Vol. IV, Annex 227; Declaration of
Colombia Witness 9, 5 Mar. 2009. EM, Vol. IV, Annex 232; Declaration of Colombia Witness 8,
4 Mar. 2009. EM, Vol. IV, Annex 231; Declaration of Colombia Witness 1, 20 Feb. 2009. EM,
Vol. IV, Annex 225; Declaration of Colombia Witness 2, 20 Feb. 2009. EM, Vol. IV, Annex 226;

Declaration of Colombia Witness 5, 20 Feb. 2009. EM, Vol. IV, Annex 229; Declaration of
Colombia Witness 6, 20 Feb. 2009. EM, Vol. IV, Annex 230; Declaration of Colombia Witness
10, 5 Mar. 2009. EM, Vol. IV, Annex 233.

262 ecosystems to the country are destroyed and the health of the
population is affectedŽ 71.

3.159 Two years later, in 2002, Colombia’s national Office of the Ombudsman

(Defensoría del Pueblo) visited Putumayo Department and other areas affected by

the aerial spraying programme. It subsequently issued a position statement in

which it reported that:

“a commission comprised of officials from the Ombudsman and
other entities recently, in mid November 2001, visited the

municipalities of Valle del Guamuez, San Miguel and Puerto Asís
and verified the impacts on food crops. The crops that were

primarily affected were yucca, plantain, pineapple, corn, cane and
rice; similarly, the deaths of 2500 young fish were reportedŽ 711.

On the basis of this and similar findings, the Ombudsman’s Office concluded that

“[t]he implementation of the eradication program besides posing a threat to the

environment and public health in the fumigation zones, has considerably affected

the vulnerable segments of the population such as small scale farmers and

712
childrenŽ .

710
Letter from Medardo Galindo Hernandez, Ombudsman, Republic of Colombia, to Juan Mayr
Maldonado, Minister of the Environment, Republic of Colombia, p. 1 (24 July 2000). ER, Vol. V,
Annex 134.
711
Republic of Colombia, Office of Ombudsman, The Implementation of the Strategy of Aerial
Eradication of Illicit Crops With Chemicals, From a Constitutional Perspective, p. 44, n. 19 (Apr.
2003). ER, Vol. V, Annex 146.

712Ibid., pp. 55-56. The report also noted that “despite 22 years having elapsed since fumigation
operations started in the country, no relevant scientific studies were conducted to determine this
substance’s effects on healthŽ. ER, Vol. V, Annex 146.

2633.160 In a later statement, the Ombudsman’s Office emphasized that the “[t]he

damage to the food crops of farmers and natives has put their food safety at riskŽ

because, without such crops, “an adequate food supply that covers their

713
nutritional needs cannot be guaranteedŽ . These observations echoed similar

statements in which the Ombudsman’s Office explained that as a result of the

damage caused to crops and animals used for subsistence, people affected by the

sprayings faced “both the ruin of their household finances as well as a severe food

714
security problemŽ .

3.161 The Colombian Comptroller General’s Office has likewise recognized the

injuries caused by Colombia’s sprayings. In 2001, it reported on the occurrence

of “symptoms of nausea, vomiting, diarrhea, and burning of the eyes, skin and

throat after the spraying; reports that coincide with information in the literature

715
and are consistent with the position of the Ministry of HealthŽ .

713
Republic of Colombia, Office of the Ombudsman, National Ombudsman Resolution No. 26,
Human Rights and International Humanitarian Law in the Context of Armed Conflict and
Fumigation of the Coca Crops in the Province of Putumayo, p. 25 (9 Oct. 2002). ER, Vol. V,
Annex 145.

714Republic of Colombia, Office of the Ombudsman, Ombudsman Resolution No. 4, p. 4 (12 Feb.
2001). EM, Vol. II, Annex 92; see also EM, Chap. 5, paras. 5.106-5.108.

715Comptroller General of the Republic of Colombia, Plan Colombia: Second Evaluation Report,
p. 44 (10 Dec. 2001). EM, Vol. II, Annex 94.

2643.162 As discussed in the Memorial, these same symptoms were documented by

Colombia’s health authorities 716. For example, the Putumayo Department of

Health recorded a dramatic increase in symptoms, including acute respiratory

infections, diarrhea, dermatitis, and skin infections following sprayings just 20

kilometres north of the Ecuadorian border in early 2001 71. Ecuador notes that

these harms are precisely the types of harms that have been documented in

Ecuador.

3.163 As has been true in Ecuador, the Colombian Office of the Ombudsman

reported that the aerial sprayings took a particularly heavy toll on children:

“In this regard, the increase in medical visits related to skin
problems, gastrointestinal, respiratory infections and

conjunctivitis, after the fumigations, in the area sprayed, is cause
for concern. Even more alarming is that, in most cases it is the
children in these regions who are presenting such symptoms. Due

to718eir fragile state, their symptoms tend to become more acute . .
.Ž .

3.164 The Ombudsman’s Office also reported that, on a number of occasions,

the exposure to the spray mixture appeared to have contributed to the death of

716EM, Chap. 5, paras. 5.102-5.105.
717
EM, Chap. 5, para. 5.103.
718
Republic of Colombia, Office of Ombudsman, The Implementation of the Strategy of Aerial
Eradication of Illicit Crops With Chemicals, From a Constitutional Perspective, p. 6 (Apr. 2003).
ER, Vol. V, Annex 146.

265small children: “the Ombudsman has also recognized some cases in which the

death of five-year old minors is related to chemical-based aerial sprayingŽ 71.

These findings bring into rather stark relief the Counter-Memorial’s bald

assertion that “[n]o substantiated complaint of death or serious harm to human

720
health has been presented in Colombia since the inception of the programŽ .

3.165 Colombia’s Comptroller General has recognized that the extent of the

harm in Colombia is a function, as in Ecuador, not just of the toxicity of the spray

mixture and Colombia’s recklessness in applying it, but also the unique

vulnerability of the population:

“One of the most troubling aspects [of the aerial spraying

programme] are the continual complaints from communities
located in the zones targeted by the program, composed primarily

of campesinos and colonists with precarious incomes, low levels
of nutrition, far from medical treatment centers, and with limited
access to health services. Both the physical and mental health of

the population has been affected, and family finances have been
impacted as well; first, as a direct and indirect result of the
fumigations, and second, due to the damage to their financial well-

719Republic of Colombia, Office of Ombudsman, The Implementation of the Strategy of Aerial
Eradication of Illicit Crops With Chemicals, From a Constitutional Perspective, p. 51 (Apr. 2003)

(“according to complaints filed by the children’s parents, they showed symptoms of poisoning
such as vomiting, diarrhea and respiratory and skin problems after the spraying. The poisoning,
caused by direct exposure to the herbicide and by the consumption of contaminated water, is
considered to be a possible cause of their deaths, hours and days laterŽ. ER, Vol. V, Annex 146.
720
CCM, Chap. 1, para. 1.34(1).

266 being, whic721s represented primarily by legal crops and
livestockŽ .

3.166 A number of Colombian departmental and local representatives, who do

not have the same vested interest in extolling the virtues of the aerial spraying

programme as elements of the national government in Bogotá, have also

complained of the severe damage caused by the spraying carried out in their

regions. In 2007, for instance, the Governor of Putumayo Department denounced

the sprayings, stating that the damage caused to legal crops by the aerial spraying

722
program was “causing an economic crisis and displacement of the populationŽ .

Other examples include the mayor of Puerto Guzmán, Putumayo, who in 2000

reported that at least seven people had died as a consequence of aerial sprayings

723
conducted in the area . Later, in 2001, the Governors of six departments,

including Putumayo and Nariño along the Ecuadorian border, denounced the

sprayings due to their impacts on human health, legal crops, and the environment,

and appealed to the national government to instead pursue a strategy of manual

eradication 724.

721Comptroller General of the Republic of Colombia, Plan Colombia: Third Evaluation Report,

p. 61 (Aug. 2002). ER, Vol. V, Annex 143.
722
“Putumayo: Governor Denounces FumigationsŽ, H OY (Quito, 29 July 2007). ER, Vol. IV,
Annex 85.
723
“Mayor Denounces FumigationsŽ, E LU NIVERSO (Guayaquil, 22 Aug. 2000). ER, Vol. IV,
Annex 56.
724
“No To Fumigation: GovernorsŽ, L TIEMPO (Bogotá, 15 Jan. 2001). ER, Vol. IV, Annex 59.

2673.167 The extensive harm in Colombia has also been substantiated by

international observers. Following a March 2004 visit to Colombia, the UN

Situation of Human Rights and Fundamental Freedoms of Indigenous People, Mr.

Rodolfo Stavenhagen, found “adverse effects of indiscriminate spraying,

including environmental damage to the topsoil, fauna, flora and water, the

destruction of subsistence crops and direct damage to human healthŽ 725. The

Special Rapporteur was sufficiently concerned about the damage caused by

Colombia’s aerial spraying program that he concluded his report with the

following recommendation: “[e]xcept where expressly requested by an

indigenous community which has been fully apprised of the implications, no

aerial spraying of illicit crops should take place near indigenous settlements or

sources of provisionsŽ 726. He arrived at this conclusion after meeting with high-

ranking governmental officials in Bogotá, including then-President Álvaro Uribe,

727
as well as personally visiting the departments of Cauca, César and Putumayo .

During these local visits, he met with departmental and local officials, members

725
Report of the Special Rapporteur on the Situation of Human Rights and Fundamental
Freedoms of Indigenous People, Mr. Rodolfo Stavenhagen, Mission to Colombia U.N. Doc.
E/CN.4/2005/88/Add.2, para. 50 (10 Nov. 2004). ER, Vol. IV, Annex 102; see also ibid., para.
82. Mr. Stavenhagen reported that the Awá had been particularly affected: “The Awá community
in Nariño has informed the Special Rapporteur of various kinds of damage caused over the last

three years to large tracts of rainforest in several areas of the municipalities of Tumaco and
Barbacoas, as a result of spraying with glyphosate. The greatest damage was done, they say, to
sources of fresh water, killing native fish and affecting human health, causing aching bones,
vomiting, dizziness, fever and other ailments, particularly among children.Ž Ibid., para. 51.

726Report of the Special Rapporteur on the Situation of Human Rights and Fundamental
Freedoms of Indigenous People, Mr. Rodolfo Stavenhagen, Mission to Colombia U.N. Doc.
E/CN.4/2005/88/Add.2, para. 106 (10 Nov. 2004). ER, Vol. IV, Annex 102.

727Ibid., para. 8.

268of civil-society and grass-roots associations, and representatives of more than 30

728
indigenous communities .

3.168 The Special Rapporteur on the Right to Food, Mr. Jean Ziegler, reached

the same conclusions as Mr. Stavenhagen, also finding cause for concern about

the impacts of aerial spraying in Colombia. Mr. Ziegler highlighted the lack of

clarity and information regarding the chemicals used in the spray mixture and

their concentrations, noting that the “proportion of glyphosate being employed

and the actual composition of the final product being used are unknownŽ 729. As

to food, Mr. Ziegler explained: “the concern of the Special Rapporteurs is not just

limited to food security risk but also to the right to food free from harmful

730
substancesŽ . Mr. Ziegler cited, in particular, to evidence from the Colombian

police documenting extensive damage to crops, resident health, and animals

731
following a 2001 spraying campaign . He also commented on how the harms

experienced in Colombia have direct ramifications for Ecuador: “Even the

Ecuadorian Red Cross acknowledges that the second largest case for

728Ibid., para. 9.

729 Report of the Special Rapporteur on the Right to Food, Jean Ziegler, Addendum:
Communications Sent to Governments and Other Actors and Replies Received, U.N. Doc.

A/HRC/4/30/Add.1, para. 17 (18 May 2007). EM, Vol. II, Annex 33.
730Ibid., para. 17 (18 May 2007). EM, Vol. II, Annex 33.

731Ibid.

269displacement of the Colombian population to Ecuador, 54%, is due to the

732
sprayings that affect their productsŽ .

3.169 There is also a flood of contemporaneous news reports corroborating the

extensive damage caused by the aerial spraying programme inside Colombia.

Ecuador has collected a number of these reports in the Annexes to this Reply. It

will not burden the Court by examining their contents here. Instead, it

733
respectfully refers the Court to the relevant annexes . The essential point is that

these media reports contain contemporaneous accounts of harms in Colombia that

further corroborate the accounts of harm emanating from Ecuador.

3.170 To the extent that the Counter-Memorial makes any effort whatsoever to

controvert this evidence, it focuses on the limited number of successful claims

made under the compensation program it established for farmers who have

suffered harm to their lawful crops. According to the Counter-Memorial,

732Ibid.

733See e.g., Larry Rohter, “To Colombians, Drug War is Toxic EnHEyNEWT YORK TIMES
(New York, 1 May 2000). ER, Vol. IV, Annex 54; “The Void of the FumigatioLsTIEMPO

(Bogotá, 28 May 2000). ER, Vol. IV, Annex 55; Juan Forero, “No Crops Spared in Colombia’s
Coca WarŽ, T HE NEW YORK TIMES (New York, 31 Jan. 2001). ER, Vol. IV, Annex 60;
“Fumigation DisputeŽ, ETIEMPO (Bogotá, 22 July 2001). ER, Vol. IV, Annex 62; “Colombia

Denounces Indiscriminate Spraying in PutumayoŽ, EERCIO (Quito, 10 Jan. 2002). ER, Vol.
IV, Annex 64; “Another Controversy Over FumigationŽ, EERCIO (Quito, 9 July 2002). ER,
Vol. IV, Annex 67; “Requesting an End to FumigationsŽ, EO (Bogotá, 10 Oct. 2002). ER,

Vol. IV, Annex 72; “Fumigations Cause Concern in PutumayoŽ, EMERCIO (Quito, 10 Nov.
2002). ER, Vol. IV, Annex 73; “Glyphosate RainŽ, EPO (Bogotá, 25 Feb. 2003). ER, Vol.
IV, Annex 74; “Between Faith and FumigationsŽ, EEMPO(Bogotá, 10 May 2002). ER, Vol.
IV, Annex 66; “Spray Program on Indigenous Territories Is StrugglingŽ, EBogotá, 28

Apr. 2003). ER, Vol. IV, Annex 75.

270between 2002 and 2008, there were only 117 cases in which compensation was

actually awarded 73. Presumably, this is meant to show that the off-target impacts

are more limited than the evidence cited above might suggest. If that is indeed

Colombia’s point, it is manifestly not credible in light of the spray flight data

discussed in Chapter 2. The data Ecuador secured shows a wholesale disregard …

by a staggering margin … of what Colombia itself refers to as “mandatoryŽ flight

parameters. Given this, combined with the fact that Colombia has conducted

literally hundreds of thousands of spray flights since Plan Colombia began, the

fact that there have only been 117 successful claims since the programme began

says more about the unfairness of the compensation program than the

harmlessness of the sprayings. Moreover, 117 compensated claims is certainly

not evidence of the lack of harm in Colombia.

3.171 Colombia also does not bother to mention that during the same time

period (2002-2008), many thousands of complaints were submitted. According to

the Colombian Comptroller General, in 2002 alone, the Ministry of Justice

received 4,500 complaints 73. Still other complaints were directed to the

734CCM, Chap. 4, para. 4.22; see also CCM, Chaps. 1 and 7, paras. 1.34(1), 7.174.
735
Comptroller General of the Republic of Colombia, Plan Colombia: Fifth Evaluation Report, p.
36 (Dec. 2004). ER, Vol. V, Annex 152.

271Colombian Ombudsman’s Office, which reported receiving 6,553 complaints by

736
the end of 2001 .

3.172 The one thing that is clear from these numbers is that the vast majority of

claims have gone uncompensated. Given that the cards are stacked so heavily

against the claimants, this is not surprising. DIRAN’s compensation program

was created in 2001 and involves a lengthy and mind-numbingly complex

process, requiring, among other things, the presentation of a deed (a legal

instrument which many landowners in the remote locations affected by the

spraying programme simply do not have); two field visits (which are not

conducted if there is “public unrestŽ, a near ubiquitous condition in Colombia’s

southern Departments); and additional confirmatory evidence (including spray

records and satellite images) 737. To say that these requirements exceed the means

of the vast majority of campesinos is to belabour the obvious. For this reason,

736Republic of Colombia, Office of the Ombudsman, National Ombudsman Resolution No. 26,
Human Rights and International Humanitarian Law in the Context of Armed Conflict and
Fumigation of the Coca Crops in the Province of Putumayo, p. 24 (9 Oct. 2002). ER, Vol. V,

Annex 145.
737Resolution No. 017 of 4 October 2001 of the National Narcotics Council of Colombia, Art. 4,

5, 8, 13. CCM, Vol. II, Annex 43. In 2007, the National Narcotics Council found it “necessary to
amend [the compensation program] in order to make its implementation faster and efficient and
this way determine the alleged liability of the StateŽ, however the program enacted in 2007
continues to be structured in a way that make a compensation award nearly impossible for the
claimant. See Resolution No. 008 of 2 March 2007 of the National Narcotics Council of
Colombia. CCM, Vol. II, Annex 61.

272among others, the Colombian Ombudsman’s Office has called the programme

“inadequate and ineffectiveŽ 73.

3.173 The evident inadequacy of the Colombian compensation programme

stems at least in part from the fact that it is administered by the very entities that

are responsible for the spray programme, i.e., the DNE and the Antinarcotics

Police. Noting this conflict of interest, the Colombian Comptroller General stated

that:

“This procedure has serious flaws, among others, and most

obvious is that the same agencies responsible for carrying out the
sprayings, the DNE [National Narcotics Directorate] and the Anti-
Narcotics Division of the Police, are charged with evaluating the

claims for damages, thus becoming judge and party in the
conflictŽ739.

Under the circumstances, perhaps the most remarkable feature of the

compensation program is that any of the claims managed to succeed.

3.174 With the totality of mutually corroborating evidence decisively against it,

it is difficult to understand how Colombia can continue to maintain that the

massive aerial spraying of chemical herbicide across swathes of territory in

reckless disregard of all operational and safety requirements, without ever having

738
Republic of Colombia, Office of the Ombudsman, National Ombudsman Resolution No. 26,
Human Rights and International Humanitarian Law in the Context of Armed Conflict and
Fumigation of the Coca Crops in the Province of Putumayo, p. 22-23 (9 Oct. 2002). ER, Vol. V,
Annex 145.
739
Comptroller General of the Republic of Colombia, Plan Colombia: Fourth Evaluation Report,
p. 37 (July 2003). EM, Vol. II, Annex 98.

273conducted an environmental impact assessment to assess the harms, has caused

no harms. Its own evidence attests to the contrary in Colombia, as it does in

Ecuador.

Conclusion

3.175 In summary, this Chapter provides incontrovertible evidence that aerial

spraying drifted across the boundary and caused measurable and significant harm

to people, to livestock, to animals, to crops and to the environment, in areas

within 10 kilometres of the border with Colombia, in Sucumbíos and Esmeraldas

Provinces. The harm extends to indigenous peoples and their communities. The

evidence is extensive and conclusive, coming as it does from a range of different

sources, all of which confirm and are consistent with each other. In particular,

this Chapter allows the following conclusions to be drawn as to the evidence of

harm:

(1) Newly available flight data information proves the dates and locations of

sprayings and the reckless conditions under which they were carried out,

and provides clear evidence in support of the facts set forth in the

Memorial; of particular probative value are individual witness statements,

contemporaneous UN and other observation mission reports, press reports,

scientific studies and reports from Colombia.

274(2) Colombia has misunderstood and misrepresented the evidentiary value of

the material on which Ecuador relies, including witness testimonies, that

provide conclusive evidence as to the effects of the spraying on people,

crops, property and the environment.

(3) The evidence of harms occurring in Ecuador are confirmed by the

consistent evidence of the same harms arising in Colombia.

275 CHAPTER 4.

COLOMBIA’S FAILURE TO CONDUCT AN ENVIRONMENTAL

IMPACT ASSESSMENT, AND OTHER FAILURES TO PREVENT, OR
EVEN ASSESS, HARM TO ECUADOR4.1 The Parties agree that Colombia’s aerial spraying programme required a

transboundary environmental impact assessment (“EIAŽ). The Counter-

Memorial concedes, “Colombia was, no doubt, obliged to consider potential

impacts on its neighbours, and on the environment, in formulating and

implementing the aerial spraying programŽ 74. Colombia also does not dispute

that it was required to carry out a transboundary EIA prior to beginning the

spraying programme along or near the border with Ecuador. This is self-evident.

An EIA is the means by which regulatory authorities determine whether a project

should be permitted, and if so, for deciding what restrictions must be enforced to

prevent or minimize risk to the surrounding environment, including human

settlements. Carrying out an EIA before a project begins is therefore a

fundamental necessity. This is especially so when the contemplated undertaking

is as potentially damaging as the aerial spraying of entire areas with a potent

herbicide mixture whose known elements are understood to harm human health

and indiscriminately kill the plants it comes in contact with. The Counter-

Memorial does not dare to disagree.

4.2 Yet, as shown in this Chapter, Colombia did not carry out a transboundary

EIA before spraying along the border with Ecuador. Nor did it conduct an EIA at

any time thereafter. The Counter-Memorial does not deny that a transboundary

740Counter-Memorial of Colombia, Vol. I, Chap. 1, para. 1.40 (29 Mar. 2010) (hereinafter
“CCMŽ).

279EIA was never carried out. Instead, it tries to defend that failure by asserting that

an EIA is not required under Colombian municipal law. How does Colombia

justify such a remarkable claim? By stating that it enacted legislation which

exempted the programme from requiring an EIA. Of course, Colombia’s self-

serving domestic legislation cannot trump its international legal obligations in

regard to conducting a transboundary EIA. But the legislative manoeuvring is

nonetheless relevant because it reveals the lengths to which Colombia has gone to

avoid carrying out an EIA in regard to the aerial spraying programme … even

eliminating the domestic legal requirement to assess environmental impacts in

Colombia … because it knows very well that if it ever carried out an EIA in regard

to the programme the results would make aerial spraying impossible. Simply put,

the spraying programme could not survive an EIA that meets even the most

minimal standards, and Colombia knows it. Hence it dispensed with the EIA

altogether, and conveniently changed its own laws to give its omission a veneer

of legality.

4.3 In place of an EIA, the Counter-Memorial says that Colombia substituted

an “Environmental Management PlanŽ (“EMPŽ) 74. This document bears scant

742
relation to an EIA, and does not even purport to be one . The Court has already

741See CCM, Chap. 4, paras. 4.10-4.11.

742See CCM, Chap. 6, paras. 6.23-6.24 (“Colombia had only developed an Environmental
Management Plan . . . and not an Environmental Impact AssessmentŽ.) (internal quotation
omitted). See also Claudia Rojas Quiñonez, Esq., The Aerial Spray Program and Violations of

280been introduced to the EMP in Chapter 2 of this Reply: this is the document that,

inter alia, establishes the spray programme’s operational requirements for the

purpose of preventing spray drift onto non-target locations, including the

maximum altitude for spray dispersal, spray application rate and droplet size.

Ecuador has already shown that Colombia’s spray pilots routinely ignored these

requirements on tens of thousands of spray flights along or near the border,

making spray drift into Ecuador inevitable. Although these massive and pervasive

violations of the EMP are of critical importance in this case, they are not

Colombia’s only violations of the EMP. In this Chapter, Ecuador shows that

Colombia also failed to comply with its obligations under the EMP to assess the

environmental impacts of its aerial spraying programme, despite the fact that it

was ordered in 2004 by the nation’s highest administrative tribunal … the Council

of State … to do so. Chiefly, the evidence of these violations of the EMP is

supplied by the Government of Colombia itself. On repeated occasions

Colombia’s own Ministry of Environment, Comptroller General and National

Ombudsman criticised the National Narcotics Directorate (Dirección Nacional de

Estupefacientes, “DNEŽ) for failing to fulfil its responsibilities under the EMP to

carry out the required environmental impact studies. In fact, the DNE’s refusal to

conduct any environmental impact assessments in regard to the aerial spraying

Colombia’s Domestic Laws Regarding the Environment and the Rights of Indigenous Peoples,
paras. 36-41 (describing the difference between an EIA and an EMP under Colombian law)
(hereinafter “Rojas Report) (Jan. 2011). ER, Vol. II, Annex 8.

281programme led the Environment Ministry to impose sanctions on it 743. But it still

refused to comply.

4.4 In light of these facts, it is not surprising that no actual environmental

impact studies were ever carried out … neither prior to (as required by

international law) nor at any time after the aerial spraying programme was put

into operation. The Counter-Memorial is left to cite only three studies of any

kind: a minor scientific study on glyphosate that occurred 13 years before aerial

spraying began near Ecuador; and two others that took place five and nine years,

744
respectively, after spraying commenced along the border . None of these

studies included even the most rudimentary elements of a transboundary EIA. In

particular, they failed to evaluate the specific herbicide formulations that

Colombia uses (or has used) in the programme; and they failed to assess

transboundary impacts in Ecuador, including via spray drift.

4.5 What is apparent from Colombia’s consistent conduct is that

environmental protection and human rights are set aside in favour of drug

eradication. This has been the case from the time the aerial spraying programme

began until the present day, and at all times in between. To be sure, the

743See infra, Chap. 4, para. 4.65; Republic of Colombia, Ministry of Environment Resolution No.
0670, Whereby a sanction is imposed and other decisions are made (19 June 2003). EM, Vol. II,
Annex 19.

744CCM, Chap. 4, paras. 4.8-4.19.

282Environment Ministry, the Comptroller General and the National Ombudsman

have spoken out against the programme … but no one in authority pays any

attention to them: certainly not the DNE or the Anti-Narcotics Direction of the

Colombian National Police (“DIRANŽ), the drug enforcement and anti-narcotics

agencies which are charged with carrying out the aerial spraying programme.

That they have been free to ignore these other government agencies … as well as

Colombia’s highest administrative tribunal … attests to the priority given at the

highest levels of the Government of Colombia to drug eradication, even at the

expense of environmental protection and the human rights of mostly

impoverished farmers, villagers, and indigenous peoples regularly doused with

the spray mixture. It is not for Ecuador to comment on the wisdom or morality of

this policy. Colombia is free to act in this manner if it so chooses … at least in

regard to its own territory and nationals. But, as important as the fight against

illicit drugs may be to Colombia (and Ecuador, as well, for that matter), Colombia

is not free to conduct aerial spraying operations in a manner that harms the

environment in Ecuador, or harms or violates the human rights of Ecuadorian

nationals.

4.6 This Chapter is organized as follows. Section I establishes that Colombia

failed to assess environmental impacts before it started to spray near Ecuador.

This point is hardly in dispute. The Counter-Memorial makes only the feeblest of

attempts to claim any impact assessments were performed before January 2000

283when the spraying began along the border with Ecuador. The scant evidence that

Colombia cites … a small-scale test on glyphosate conducted over a decade before

spraying commenced … is facially inadequate. So inadequate, in fact, that the

745
Counter-Memorial relegates it to a footnote .

4.7 In Section II, Ecuador demonstrates that Colombia also did not assess

environmental impacts after it started spraying. Colombia cites only two studies

after the commencement of spraying in 2000, neither of which comes close to an

EIA, let alone a transboundary assessment of impacts on Ecuador. The first study

did not take place until 2005, over five years after Colombia began to spray near

Ecuador, and the second was not until 2009, four years later still. Critically,

neither study assessed environmental risks to Ecuador, its people, animals or

plant-life. Nor did they evaluate the impacts of the particular chemical mixture

the Counter-Memorial claims Colombia used for the first five years of the aerial

spraying programme, much less the elements in the mixture which Colombia has

used, but not disclosed. And, worst of all, the 2005 and 2009 studies invoked by

the Counter-Memorial were based on Colombia’s false representations that it

operates the spray programme in strict compliance with the operational

requirements that prevent spray drift, including aircraft speed, height of spray

release, application rate, droplet size, time of day, etc. Therefore, although the

model used for measuring drift is an acceptable one, the results are meaningless

745CCM, Chap. 4, para. 4.8, n. 253.

284because the inputs are completely wrong. As the saying goes: garbage in,

garbage out.

4.8 Section III demonstrates that the aerial spraying programme also violates

other important operational and safety requirements, both within and external to

the EMP. These include compliance with label instructions for safe usage of each

of the products that Colombia has sprayed near Ecuador, including the label

instructions for Roundup Export, Roundup Ultra, Roundup SL and GLY-41.

These violations are highly probative of a likelihood of harm, and evidence a

breach of Colombia’s duty of due diligence, especially because compliance with

product labelling instructions for pesticides is mandatory in Colombia. The

violations thus transgress Colombia’s own standards for what is required for the

safe application of the products used in the spray mixture, including those

required to avoid spray drift.

4.9 Finally, Section IV demonstrates that Colombia’s aerial spraying

programme could not be conducted in other jurisdictions throughout the world,

including the European Union (“EUŽ), which has banned aerial spraying, subject

only to a limited ability to derogate in narrow and highly controlled

circumstances. Colombia’s aerial spraying programme would also be prohibited

by the environmental laws of numerous other States. These are further

285indications that the irresponsible manner in which Colombia sprays toxic

herbicides near Ecuador is dangerous, and prone to cause transboundary harm.

Section I. Colombia’s Failure to Assess Environmental Impacts Before the

Aerial Spraying Programme Was Commenced

4.10 It will doubtless not have escaped the Court’s attention that the Counter-

Memorial nowhere presents the results of an EIA. The reason for that omission is

not in dispute: no EIA was carried out.

4.11 Colombia’s defence of its failure to carry out an EIA is risible: it claims

none was required under its domestic law because when new legislation was

enacted in 1993 it created a “transitional regimeŽ that exempted pre-existing un-

licensed projects from having to carry out EIAs. As Colombia states at

paragraphs 4.10-4.11 of the Counter-Memorial:

“In December 1993, the Law on the Environment was passed. In

1994, a regulatory decree adopted under that Law provided that
activities … including the aerial spraying of illicit crops … that had
been authorized and begun prior to that date could continue . . .

The new legal regime expressly set out the activities requiring

prior environmental authorizati746 the application of pesticides
was not included among themŽ .

4.12 This won’t fly. Colombia cannot avoid its obligation under general

international law to carry out a transboundary EIA before starting a project

746CCM, Chap. 4, paras. 4.10-4.11.

286capable of damaging a neighbouring State by declaring that, as a matter of

municipal law, no EIA is required 747.

4.13 Absent an EIA, it is hardly surprising that the evidence that Colombia

conducted any sort of assessment of environmental impacts prior to spraying near

the border with Ecuador is presented in a single footnote … Footnote 253.

According to this footnote, at some point “in the 1980sŽ, a private company, SGS

Colombia, “analyzed the results of several soil and water samples following the

application of glyphosateŽ in a national park in Sierra Nevada de Santa Marta,

Colombia. That is all. The Counter-Memorial, in effect, concedes that there are

no other scientific assessments showing that Colombia carried out anything

resembling an EIA prior to spraying near Ecuador.

4.14 Ecuador need not detain the Court by dwelling on why this limited study,

conducted well over a decade before spraying commenced near its territory, was

inadequate to assess the risks of harm to people, plants, animals or the

environment in Ecuador. The study was limited to measuring glyphosate residue

747
As discussed in greater detail in Chapter 6, the Court recently confirmed in the Case
Concerning Pulp Mills on the River Uruguay that States have an obligation under general
international law to “undertake an environmental impact assessment where there is a risk that the
proposed activity may have a significant adverse impact in a transboundary context, in particular,
on a shared resource. Moreover, due diligence, and the duty of vigilance and prevention which it
implies, would not be considered to have been exercised, if a party planning works liable to affect
the [environmental quality of a shared or transboundary resource] did not undertake an
environmental impact assessment on the potential effects of such worksŽ. Case Concerning Pulp

Mills on the River Uruguay (Argentina v. Uruguay), Judgment, p. 60, para. 204 (2010). The
Court made clear that “an environmental impact assessment must be conducted prior to the
implementation of a projectŽ. Ibid., p. 60, para. 205 (emphasis added).

287in a small number of soil and water samples taken from areas that had been

748
sprayed between two and five months earlier , despite the fact that, according to

749
Colombia, glyphosate biodegrades in tropical soils in less than 7 days . Nor did

it assess spray drift, including spraying at various heights, speeds and application

rates750. It also did not assess impacts to human health, off-target plant-life or

animals 75. No analysis was done on either of the two spray formulations that the

Counter-Memorial admits Colombia sprayed in areas adjacent to Ecuador,

namely Roundup SL and GLY-41, or on Roundup Export (the product the U.S.

government reported Colombia was using), or on Roundup Ultra (the product

752
Colombia claims it sprayed in diplomatic exchanges with Ecuador) .

4.15 Indeed, the study is so inadequate that the Counter-Memorial

acknowledges Colombia could not comply with a request from Ecuador, made in

October 2003, that it provide any “Environmental Impact AssessmentŽ that had

748
SGS (Societé Génerale de Surveillance, S.A.) Colombia S.A., “Report of Contamination
Control for glyphosate application at the Sierra of Santa MartaŽ, p. 5 (1987). CCM, Vol. III,
Annex 123.

749Diplomatic Note DM/AL No. 25009, sent from the Ministry of Foreign Affairs of Colombia to
the Ministry of Foreign Affairs of Ecuador, p. 3 (14 July 2001). EM, Vol. II, Annex 42.

750SGS (Société Générale de Surveillance, S.A.) Colombia S.A., “Report of Contamination
Control for glyphosate application at the Sierra of Santa MartaŽ (1987). CCM, Vol. III, Annex
123.

751Ibid.

752Ibid. The study refers only to “RoundupŽ without stating which, if any, of the formulations
Colombia has used near Ecuador was studied.

288been “conducted prior to sprayings of GlyphosateŽ 753. The reason this simple

request could not be granted is patent: there was nothing to provide.

754
4.16 Colombia argues that in place of an EIA it prepared an EMP . Without

elaborating, the Counter-Memorial asserts that an EMP “is equivalent to an

755
environmental impact assessmentŽ . Colombia knows better. Its EMP comes

nowhere close to being an EIA. An environmental impact assessment is just that …

it is a comprehensive assessment of the potential environmental impacts of a

project. Its fundamental objective is to identify the harms a project might cause,

before they occur, in order to determine whether a project should proceed and to

determine the measures required to prevent or limit these harms 75. In order to

attain an environmental license in Colombia, one must first execute an EIA to

757
determine the harms . An EMP is just one of the documents that accompany

758
the EIA in this process . It is only after the extent and type of harms have been

identified in the EIA that the EMP can be created to manage and prevent the

project’s identified harms once it is underway. Thus, Colombia carried out its

753CCM, Chap. 6, paras. 6.24.
754
Ibid., Chap. 4, paras. 4.10-4.11.
755
Ibid., Chap. 4, para. 4.10
756
See Reinhard Joas, Ph.D., The Development of the 2009 European Union Pesticides Directive
With Particular Focus on Aerial Spraying, p. 15 (Jan. 2011) (hereinafter “Joas ReportŽ). ER, Vol.
II, Annex 7; Rojas Report, op. cit., paras. 36-38, 96. ER, Vol. II, Annex 8.
757
See Rojas Report, op. cit., paras. 33-38, 96 (discussing the requirements of Law 99 of 1993).
ER, Vol. II, Annex 8.
758
See ibid., paras. 39-41, 96. ER, Vol. II, Annex 8.

289mass-scale aerial spraying programme without ever having first assessed and

understood the harms it would cause. The ostensible plan to address these harms,

the EMP, was designed in a void, uninformed of the damage it was created to

prevent.

4.17 The Colombian Ministry for the Environment recognized that the EMP

was not equivalent to, and could not substitute for, an EIA. And it should know: it

was the agency responsible for approving the EMP. As shown below, it

repeatedly demanded that EIAs be carried out as part of the EMP. Each of these

demands was rebuffed by the organ of the Colombian government that was

assigned responsibility for conducting the impact assessments of the aerial

spraying programme: the DNE. This, self-evidently, was a major flaw in the

EMP. By putting environmental protection in the hands of the anti-narcotics

police … whose main mission is drug eradication … the EMP effectively placed the

fox in charge of the henhouse. Thus, whenever it was called on … or ordered … by

the Environment Ministry to assess the environmental impacts of the aerial

spraying programme, the DNE just said “NoŽ. And no one was able to make the

DNE comply. The DNE was fined and sanctioned; Colombian courts and

agencies even ordered the aerial spraying programme to be suspended until the

DNE complied with the EMP. Yet the DNE continued to carry out the spraying

programme in defiance of these orders.

2904.18 The Counter-Memorial makes only a brief reference to the development

of the EMP. It says: “The Ministry for the Environment and the National

Narcotics Directorate jointly worked in developing the EMP. In November 2001,

following several adjustments arising from initial field experience, the EMP was

759
formally adopted by Resolution 1065 of 2001Ž . The Counter-Memorial is

silent in regard to the contents of the EMP, its requirement that environmental

impacts be assessed, and the Environment Ministry’s unsuccessful efforts to get

the DNE to make these assessments. It thus falls to Ecuador to tell the story.

4.19 What happened is this. When the Colombian Government first began

aerial spraying on an experimental basis in northern Colombia in 1984,

INDIRENA (as the Ministry of Environment was then known) insisted that the

Colombian National Police (the agency then responsible for the spraying) carry

out the legally required impact studies. Specifically, it presented the Ministry’s

“demand that an ecological and environmental study be submitted prior to the

glyphosate-based aerial spraying actions in any area of the countryŽ 760. To that

end, INDIRENA provided the National Police with terms of reference for the

759
CCM, Chap. 4, para. 4.13 (emphasis added).
760
Republic of Colombia, Ministry of Agriculture, Study Proposal for the Environmental
Management of the National Park Areas of Sierra Nevada de Santa Marta and Buffer Zones
Affected by Marijuana Crops and their Destruction by Aerial Spraying with Glyphosate, pp. 3-4
(31 July 1986). ER, Vol. V, Annex 120. See also Rojas Report, op. cit., paras. 25 & 64
(explaining how the “EES, according to article 28 of the CNRNR, was required prior to obtaining
[an Environmental] License and consisted of a study that had to be carried out before the

performance of activities that could produce serious environmental deteriorationŽ.). ER, Vol. II,
Annex 8.

291studies, and registered an official protest for having been excluded from the

761
decision to spray glyphosate and for the manner in which it was being applied .

762
The National Police ignored INDIRENA’s directive and continued spraying .

4.20 Two years later, INDIRENA again insisted that environmental studies be

carried out. It stated that “[t]hese studiesŽ had to “consist of basic research on

Ecology, Socioeconomics, Culture and the identification of adverse effects on

human populations, plants and animals caused by the spraying of GlyphosateŽ,

and were necessary to “enable the proposal of environmental management

measures of a socio-economic and ecological natureŽ 763. In light of its serious

concerns with the spray programme, INDIRENA stated that “legal and moral

obligationsŽ compelled it to “oppose[]Ž the “spraying with glyphosate in areas

belonging to Colombia’s National Park SystemŽ and, with respect to other areas

being considered for aerial spraying, to conclude that “the preparation,

presentation, evaluation and approval of the environmental studies required by

LawŽ was “essentialŽ 764.

761
Republic of Colombia, Ministry of Agriculture, Study Proposal for the Environmental
Management of the National Park Areas of Sierra Nevada de Santa Marta and Buffer Zones
Affected by Marijuana Crops and their Destruction by Aerial Spraying with Glyphosate, p. 4 (31
July 1986). ER, Vol. V, Annex 120.

762Ibid., p. 5.
763
Ibid., pp. 3-4.
764
Republic of Colombia, Ministry of Agriculture, Study Proposal for the Environmental
Management of the National Park Areas of Sierra Nevada de Santa Marta and Buffer Zones

2924.21 When three scientists from INDIRENA later observed first-hand spraying

operations and their environmental impacts, their report was brutally frank in its

criticism, finding that the sprayings were “ecologically . . . destroyingŽ the

765
area . With respect to the missing environmental impact studies, INDIRENA

stated:

“Glyphosate is a harmful chemical agent, it is not recommended

for aerial application, its danger is even greater if the manner and
intensity of application during almost the entire year is taken into

account. Its effects have not been studied for the type of tropical
ecosystems such as those exists in the Sierra Nevada de Santa
MartaŽ 766.

And it further noted that “the National Police did not respond to prior orders and

767
that no type of research regarding the effect of fumigation has been initiatedŽ .

INDIRENA therefore reiterated the urgent need to carry out the required

768
studies .

Affected by Marijuana Crops and their Destruction by Aerial Spraying with Glyphosate, p. 12 (31

July 1986). ER, Vol. V, Annex 120.
765Republic of Colombia, Ministry of Agriculture, Technical Commission, Specification of the

Terms of Reference for Environmental Research in the Sierra Nevada of Santa Marta Affected by
Marijuana Crops and Spraying with Glyphosate, p. 2 (1986). ER, Vol. V, Annex 121.
766
Ibid., p. 1 (1986).
767Ibid., p. 27 (1986).

768Ibid., p. 2 (1986) (“[T]he Terms of Reference proposed by INDERENA in the document
submitted to the National Narcotics Council on July 1986 are necessary in order to, in an

immediate fashion, further studies as well as the necessary measures that should be taken to
overcome the problem that is ecologically . . . destroying historic areas of the Sierra Nevada de
Santa MartaŽ.).

2934.22 These studies were never done. Eight years later, in 1994, the Ministry of

Environment was still calling for environmental impact studies to be carried out,

and making it clear that such studies remained obligatory notwithstanding the

recent passage of the environmental legislation that the Counter-Memorial cites

to claim an exemption from EIA obligations. In a December 1994 letter to the

Minister of Justice, the Minister of Environment stated: “the Ministry of

Environment will solicit an environmental impact assessment for the fumigations

with glyphosate from the National Narcotics Council, in order to supplement the

environmental measures adopted so that they respond to the new requirements of

769
the new law 99 of 1993Ž .

4.23 Soon thereafter, in February 1995, representatives from the relevant

Colombian governmental agencies, including the Ministry of Environment, the

Agriculture Institute, the Ministry of Health, and the Ombudsman for Health and

Social Security, met to assess whether the Colombian government was in

compliance with the regulations in force concerning the aerial spraying

programme 770. They concluded, among other things, that the aerial spraying was

being carried out “without the environmental licenses that both the Ministry of

Health and the Ministry of the Environment must provideŽ, that the spraying was

769
Letter from Cecilia Lopez Montano, Minister of Environment, Republic of Colombia, to
Nestor Humberto Martinez Neira, Minister of Justice and Law, Republic of Colombia, p. 1 (20
Dec. 1994). ER, Vol. V, Annex 123.
770
Republic of Colombia, Office of the Ombudsman, Meeting Minutes, p. 1 (17 Feb. 1995). ER,
Vol. V, Annex 124.

294“causing impacts to substitution crops, food crops, bodies of water and tropical

forests, including conservation areas and parks which have been declared natural

reservesŽ, and that the “fumigation techniques ha[d] yet to be assessedŽ 771.

4.24 In October 1995, the Environment Ministry ordered the DNE within two

months to design a field study to evaluate the environmental impact of aerial

spraying of a glyphosate-based herbicide, with guidance from the ICA and the

772
Ministry of Environment . Rather than comply with this order, the DNE

773 774
appealed it . When the appeal was rejected in December 1995 , the DNE

775
appealed again. That appeal was denied as well .

4.25 In August 1996, the Environment Ministry issued a categorical rejection

of the DNE’s submission, declaring that it was plagued by “deficiencies and

771Ibid., p. 2 (17 Feb. 1995). The official’s reached other equally negative conclusions, including
that “[t]he dosage and frequency of the glyphosate application has not been prior approved by the

ICAŽ; that “[t]he Anti-narcotics Police, in accordance with orders received from the National
Narcotics Council, decides the areas that are fumigated which it determines at the same moment
that the operation is conducted, in other words, without prior evaluation . . . which makes it
impossible to determine the affected areas with any precisionŽ; and that “[t]he techniques for

direct fumigation have yet to be evaluatedŽ.
772Republic of Colombia, Ministry of Environment, Legal Department, Order No. 558A, p. 2 (13

Aug. 1996). ER, Vol. V, Annex 126.
773
Ibid.
774Republic of Colombia, Ministry of Environment, Legal Department, Order No. 558A, p. 2 (13

Aug. 1996). ER, Vol. V, Annex 126.
775Republic of Colombia, Ministry of Environment, Legal Department, Order No. 557A, p. 2 (13

Aug. 1996). ER, Vol. V, Annex 127.

295technical and logistical flawsŽ 77. Not least of these deficiencies were the

technical assessments that underpinned the use of Turbo Thrush airplanes and the

high concentration of glyphosate, which the Ministry said were “unreliableŽ 777.

As a result, the Ministry of Environment ordered the DNE to carry out “studies

and evaluations [] that permit re-evaluating and determining the parameters and

technical specifications for the fumigationsŽ. This was necessary, the Ministry

said, to “prevent harm or danger to renewable natural resources and to human

778
healthŽ . Given the DNE’s continuing inaction, the Ministry promulgated Terms

of Reference that included the required field study within a more complete set of

779
specific environmental assessment obligations .

4.26 The Terms of Reference included, inter alia, the need to “[i]dentify the

negative impacts that the Program could cause in the different environmental,

780
physical-biological and socio-economic componentsŽ . They also included the

obligation to “[i]ndicate the information deficiencies that generate uncertainty in

776Republic of Colombia, Ministry of Environment, Legal Department, Order No. 558A, p. 1 (13
Aug. 1996) (emphasis added). ER, Vol. V, Annex 126.

777Ibid. (emphasis added).

778Ibid.
779
Ibid, p. 2. Two inter-institutional meetings were held, in May and June 1996, to develop the
terms of reference for the EMP. The DNE … an invited and critical participant in this Plan …
notably did not participate in the second meeting finalizing the EMP’s terms. See Republic of

Colombia, Ministry of Environment, Division of Environmental Licenses, Order No. 599, p. 2 (23
Dec. 1999). ER, Vol. V, Annex 132.
780
Republic of Colombia, Ministry of Environment, Legal Department, Order No. 558A, p. 5 (13
Aug. 1996). ER, Vol. V, Annex 126.

296the estimation, scale and evaluation of the impactsŽ 78. In addition, the Ministry

of Environment required the DNE to include in the EMP a chapter devoted to the

“Identification and Evaluation of ImpactsŽ, which had to provide an “evaluation

and ranking of temporary or permanent impacts produced by the Program . . .

782
Ž . Further, the Ministry ordered the DNE to compare an unsprayed area with

areas that were sprayed. Among the subjects that had to be evaluated were the

risks to human health, animal species, the ecosystems, and air, soil and water

quality783. In assessing these risks the study had to evaluate:

x “Potential toxic or adverse effects that may result from

herbicides, metabolites, or the products resulting from their
transformation

x Physical and chemical properties of the herbicides
associated with their distribution, mobility, and persistence

in various environmental compartments

x Environmental characteristics (physical-biotic and socio-
economic aspects) of the exposed areas

x Conditions of exposure, type of exposure (direct or
indirect), concentration, duration, and routes of exposure

x In all cases, there will be a description of the methodology

used for evaluating impacts, as well as for establishing the
parameters and criteria for scoring and ranking them,
including the following considerations:

o The nature and magnitude of the negative effect

o The probability of occurrence
o Resources affected and ecological significance of
the effect

o Reversibility

781
Ibid.
782Ibid., p. 15 (emphasis in original).

783Ibid.

297 o The impact’s area of influence

o Lack of information causing any uncertainty or
limiting the scope of the evaluationŽ 784.

The Ministry also ordered that the evaluation analyze both “unavoidableŽ and

785
“cumulativeŽ impacts . The Ministry expressly ordered the DNE to consider

risks to human health and the territory of indigenous peoples, as well as

786
environmental harm generally .

4.27 Nearly two years elapsed after the Environment Ministry issued these

Terms of Reference, but the DNE did not comply. As a result, the Ministry was

compelled to repeat its order for the DNE to submit the required

787
documentation . The Ministry could not have been clearer that the DNE’s

failure to present these materials breached its legal obligations; it declared that

“the DNE could not continue evading what the Constitution and the law required

788
of itŽ . The Ministry therefore warned that unless the situation was remedied, it

789
would be required to take “other actionŽ .

784Republic of Colombia, Ministry of Environment, Legal Department, Order No. 558A, pp. 15-
16 (13 Aug. 1996). ER, Vol. V, Annex 126.

785Ibid., pp. 18-19.

786Ibid., p. 17.

787Republic of Colombia, Ministry of Environment, Division of Licenses, Technical Report No.
419.99, p. 4 (21 Dec. 1999). ER, Vol. V, Annex 131.

788Ibid. (emphasis added).
789
Ibid.

2984.28 When the DNE finally submitted a response, the Environment Ministry

promptly rejected it. And for good reason. The DNE’s submission was missing

the entire Chapter that was supposed to present the “Identification and Evaluation

790
of Environmental ImpactsŽ .

4.29 In light of the DNE’s failure to carry out the required impact assessments,

791
the Environment Ministry repeatedly reiterated its demand for them . When the

792
full report finally arrived, the Ministry again rejected it .

4.30 The Counter-Memorial’s reticence about the DNE’s foot-dragging in

regard to EIA is not surprising, in light of the criticisms that Colombia’s own

government agencies levelled against it. These criticisms, which are set forth in a

document dated 23 December 1999 … just days before Colombia began to spray

along the border with Ecuador in January 2000 … further confirm that the

environmental impacts of the aerial spraying had not been evaluated prior to the

790
Letter from Guillermo Acevedo Mantilla, Subdirector of Environmental Licenses, Ministry of
Environment, Republic of Colombia, to Ruben Olarte Reyes, Director, National Drug Directorate,
Republic of Colombia (13 Nov. 1998). ER, Vol. V, Annex 130.
791
Letter from Guillermo Acevedo Mantilla, Subdirector of Environmental Licenses, Ministry of
Environment, Republic of Colombia, to Ivon Alcala Arevalo, Director, National Drug
Directorate, Republic of Colombia (8 Oct. 1998). ER, Vol. V, Annex 129; Letter from Guillermo
Acevedo Mantilla, Subdirector of Environmental Licenses, Ministry of Environment, Republic of
Colombia, to Ruben Olarte Reyes, Director, National Drug Directorate, Republic of Colombia (13

Nov. 1998). ER, Vol. V, Annex 130.
792Republic of Colombia, Ministry of Environment, Division of Licenses, Technical Report No.

419.99, p. 4 (21 Dec. 1999). ER, Vol. V, Annex 131; Republic of Colombia, Ministry of
Environment, Division of Environmental Licenses, Order No. 599, pp. 31-33 (23 Dec. 1999). ER,
Vol. V, Annex 132. See also Colombian Ministry of Environment, Resolution No. 341 of 2001,
p. 2. EM, Vol. II, Annex 14.

299 793
spraying of areas immediately adjacent to Ecuador . Indeed, it is not just that no

prior EIA was carried out; the evidence is that the DNE refused to do it.

4.31 Among the government agencies critical of the DNE for its refusal to

conduct impact studies was the Colombian Agriculture Institute (“ICAŽ) … an

agency under the jurisdiction of the Ministry of Agriculture. Its criticisms

included the following:

x The ICA rejected the DNE’s assertion that the equipment and spray

mixture used in the programme “guarantee[d] that the ecosystem will not

794
suffer any damageŽ . In particular, the ICA stated that the DNE had

never evaluated spraying with fixed-wing aircraft, but instead had only

assessed spraying with helicopters, which do not fly nearly as high or fast,

795
“despite the fact that applications [we]re being carried out via airplaneŽ .

The ICA further stated that the relevant “technical conceptsŽ had “not

796
been taken into accountŽ .

x The ICA disputed the DNE’s assertion that it had decided which

territories to spray in coordination with the ICA. Specifically, it stated

793
Republic of Colombia, Ministry of Environment, Division of Environmental Licenses, Order
No. 599 (23 Dec. 1999). ER, Vol. V, Annex 132.
794
Ibid., p. 11.
795
Ibid.
796Ibid.

300 that after the initiation of the spraying programme the ICA had “never

797
againŽ been involved . Nor, the ICA said, was it aware of any of the

recent inter-institutional “assessment meetingsŽ that the DNE claimed had

798
taken place during which the programme was reassessed . To the

contrary, the ICA stated that the last meetings of which it was aware had

taken placed 15 years earlier, in 1984 799. The experts convened at those

earlier meetings, which Ecuador described in the Memorial, had decided

against aerial spraying, stating: “[T]he Committee reiterates its opposition

of not recommending the use of glyphosate or any other herbicide by

aerial application for the destruction of marijuana crops . . . the

implementation of the program is advised against because it would be

accepting experimentation on humansŽ 800.

x The ICA found serious flaws in the DNE’s discussion of nearly every

operational parameter relevant to spray drift, including height, speed and

application rate 801. It therefore rejected the DNE’s assertion that spray

drift would be limited to 2 to 5 metres. In particular, the ICA declared

797
Ibid.
798
Ibid, p. 12.
799Ibid.

800See Memorial of Ecuador, Chap. 2, para. 2.34 (28 Apr. 2009) (hereinafter “EMŽ).

801Republic of Colombia, Ministry of Environment, Division of Environmental Licenses, Order
No. 599, pp. 12-14 (23 Dec. 1999). ER, Vol. V, Annex 132.

301 that “the height and speed of operationŽ made that level of drift

“impossible to achieve with airplanesŽ 80.

x The ICA determined that much more information was needed to identify

the impacts caused by spray drift and to understand its implications for the

environment and human health. The ICA explained that, given the toxicity

of the spray mixture and the lack of information on its potential impact,

the Ministry of Environment should require assessments to evaluate the

spray’s impact in Colombia’s “environmentŽ 803.

4.32 The Ministry of Environment was particularly critical of the DNE’s

failure to take impact assessments seriously. Its Ecosystems Department wrote

that the insufficient level of detail provided in the DNE’s environmental

characterization of the areas to be assessed made it “impossible to carry out

evaluations or rankings of the temporary and permanent impacts caused by the

eradication efforts, and therefore, to define the control, prevention, compensation

804
and recuperation measures for the EMPŽ . The lack of specificity in the plan

meant that there was:

802The ICA observed that the DNE would be more likely to achieve that level of drift if it used
helicopters. Ibid., p. 14 (emphasis added).
803
Ibid., p. 16.
804
Ibid., 19.

302 “no accuracy regarding the critical and risk areas corresponding to
the different degrees of erosion and geotechnical stability, the
inventory of the primary uses of water related to municipal

aqueduct supply, fields and production activities, and specific
characterizations regarding qualitative and quantitative vegetative
aspects, the presence of endemic flora and fauna species in areas

of direct influence within eradication areas, basic parameters of
impact identification and evaluationŽ 80.

In other words, there was no way to determine the type and extent of harm that

could be caused and would need to be assessed in the areas to be sprayed.

4.33 The Subdivision for the Planning and Management of National Parks of

the Special Administrative Unit for National Parks was equally critical. It stated

that the DNE had not evaluated the vulnerabilities of the ecosystems exposed to

the spray, had failed to evaluate the impacts caused by the sprayings, had failed to

secure the required approval from the Ministry of Environment for areas to be

studied, and had failed to address the legal requirement to establish buffer zones

around sensitive areas, such as national parks 806.

4.34 As was to be expected, the DNE challenged this order in an administrative

807
appeal .

805Ibid., pp. 19-20.
806
Ibid., pp. 21-24.
807
Colombian Ministry of Environment, Resolution No. 341 of 2001, p. 2. EM, Vol. II, Annex
14.

3034.35 Thus, the state-of-affairs with respect to environmental impact

assessment as of 23 December 1999 … that is, just before aerial spraying along the

border with Ecuador began in January 2000 … was as follows: The only study

that Colombia felt was worth mentioning in the Counter-Memorial’s section on

“Studies Leading to the Environmental Management PlanŽ had occurred over a

decade earlier, in 1987, and was totally inadequate; and the Colombian

Environment Ministry had repeatedly demanded impact studies for many years,

but was refused at every turn by the DNE.

Section II. Colombia’s Failure to Assess Environmental Impacts After the
Aerial Spraying Programme Commenced

A. T HES TUDIES INVOKED IN THE C OUNTER -M EMORIAL

4.36 The first study mentioned in the Counter-Memorial that allegedly

assessed the impacts of the aerial spraying programme is the Solomon study,

which was not completed until March 2005 808. Colombia thus concedes that

between January 2000 (when spraying near Ecuador began) and March 2005

(when the Solomon study was completed), there were no assessments that qualify

as an EIA 80. As a result, the Counter-Memorial does not contest that, for over

five years, Colombia sprayed vast quantities of chemical herbicides in areas

immediately adjacent to Ecuador without having assessed environmental impacts,

80CCM, Chap. 4, paras. 4.15-4.17.

80See CCM, Chap. 4, 4.8-4.17.

304let alone transboundary impacts. Indeed, by the time the Solomon study was

completed in March 2005, Colombia had sprayed within 10 kilometres of

810
Ecuador no fewer than 64,285 times .

4.37 The 2005 Solomon study did not purport to be a transboundary EIA. It

was a report conducted at the request of the Governments of the United States,

811
the United Kingdom and Colombia . By its own terms, it was confined to

812
assessing impacts in Colombia exclusively . Moreover, the value of this or any

other scientific study necessarily depends on the quality of the data or

assumptions upon which it is based. In this case, the Solomon study was based

on factual representations given by Colombia … that the spray planes strictly

complied with all operational requirements regarding flight speed, altitude,

application rate, droplet size, and time of day … representations which the

evidence described in Chapter 2 of this Reply now shows were false.

Accordingly, contrary to the Counter-Memorial, the 2005 Solomon study is not

810
R. John Hansman, Ph.D. & Carlos F. Mena, Ph.D., Analysis of Aerial Eradication Spray
Events in the Vicinity of the Border Between Colombia and Ecuador from 2000 to 2008,
Appendix 3, p. 29 (Jan. 2011) (hereinafter “Hansman & Mena ReportŽ). ER, Vol. II, Annex 1.
811
Keith R. Solomon et al., Environmental and Human Health Assessment of the Aerial Spray
program for Coca and Poppy Control in Colombia, p. 2 (31 Mar. 2005) (“This report was
prepared . . . in response to requests from the Governments of Colombia, the United Kingdom,
and the United States of AmericaŽ.) (hereinafter “Solomon et al., 2005Ž). CCM, Vol. III, Annex

116. See also 2004 Memorandum of Understanding between the Government of Colombia and
the Organization of American States (OAS) for the execution of the study on the effects of the
Program for the Eradication of Illicit Crops by aerial spraying with Glyphosate Herbicide
(PECIG) and of illicit crops, on human health and environment, pp. 8-9 (4 Feb. 2004). CCM,
Vol. III, Annex 113.

812Ibid, p. 9.

305only not an EIA, but it is also devoid of any sustainable findings about the

environmental impacts of the aerial spraying programme in either Colombia or

Ecuador. It certainly has nothing useful to say about spray drift … into Ecuador or

813
anywhere else .

4.38 Further undermining the reliability of the 2005 Solomon study, it did not

purport to assess the impacts of spray mixtures that Colombia actually used. As

described in Chapter 2, at least four different formulations have been reported:

814
Roundup Export, Roundup Ultra, Roundup SL and GLY-41 . The Solomon

study does not state that any of these products were evaluated. All the study says

is that its authors received a toxicity assessment that had been conducted three

years earlier by a Colombian laboratory of a “sample product GLYPHOSATE

44% + COSMOFLUX 1% + WATER 55%Ž 81. If the report of the Colombian

813For example, the Solomon study assumed that the spray droplets were 300-1,500 —m in

diameter. Solomon et al., 2005, op. cit., p. 28. CCM, Vol. III, Annex 116. Nevertheless, later
research by the same research team revealed that at least 50 percent of the droplets were less than
128 —m in size. A.J. Hewitt et al., “Spray Droplet Size, Drift Potential, and Risks to Nontarget
Organisms from Aerially Applied Glyphosate for Coca Control in ColombiaŽ in Journal of
Toxicology and Environmental Health, Part A, 72:921, p. 921 (2009) (hereinafter “Hewitt et al.,

2009Ž). CCM, Vol. III, Annex 131-B. As discussed in Chapter 2, droplet size is one of the most
critical parameters influencing spray drift, and this drastic overestimation of the size of the
droplets would materially affect any conclusions regarding impacts caused by spray drift. In
addition, the Solomon study assumed that the spray was released from a height of 30 meters.
Solomon et al., 2005, op. cit., p. 30. CCM, Vol. III, Annex 116. Again, Solomon’s assumptions

were far off the mark, invalidating any of its conclusions regarding the health and environmental
impacts of spray drift.
814
See supra Chap. 2, paras. 2.18-2.42.
815O. Saavedra, Laboratorio Immunopharmos Ltda., Toxicity Study on Laboratory Animals for

two concentrations of Glyphosate 44% + Cosmoflux 1% + Water 55%, Bogotá, p. 281 (15 Feb.
2002). CCM, Vol. III, Annex 128; Solomon et al., 2005, op. cit., pp. 104-105. CCM, Vol. III,
Annex 116.

306laboratory is taken at face value, no formulated version of glyphosate was

assessed, since it refers only to “GlyphosateŽ, thus indicating that glyphosate in

its pure form was tested, not a formulated product such as Roundup Export or

GLY-41 that contains surfactants like POEA (which the Counter-Memorial

admits is present in all formulations that have been sprayed) 816. Regardless,

since only one mixture was assessed, at least three of the four products that

Colombia has sprayed were not studied.

4.39 The 2005 Solomon study identified numerous topics relating to

environmental risk and protection of human health that it did not address, even

though it stressed their importance. Colombia’s own expert acknowledges that

the “Solomon et al. report identified data gaps and areas with insufficient

information to conclude a risk assessment satisfactorily and outlined a further

programme of research to fill these gapsŽ 817. Chief among these was the absence

of any proper study of spray drift, since it had “not been measured under

818
conditions of use in ColombiaŽ . Since spray drift is the principal means by

816
CCM, para. 4.50, n. 312.
817Dr. Stuart Dobson, Critique of “Evaluation of Chemicals Used in Colombia’s Aerial Spraying
Program, and Hazards Presented to People, Plants, Animals and the Environment in EcuadorŽ

Menzie et al., p. 528 (2009) (hereinafter “Dobson ReportŽ). CCM, Vol. I, Appendix.
818 2006 Memorandum of Understanding between the General Secretariat of the Organization of

American States (SG/OAS) and the Government of Colombia for the execution of the study on the
effects of the Program for the Eradication of Illicit Crops by aerial spraying with Glyphosate
Herbicide (PECIG) on human health and the environment, p. 228 (23 May 2006). CCM, Vol. III,
Annex 119. Inter-American Drug Abuse Control Commission (CICAD), Second Phase
Environmental and Human Health Assessment of the Aerial Spray Program for Coca and Poppy
Control in Colombia, p. 1 (date unknown). EM, Vol. III, Annex 159.

307which Ecuador has been affected by the aerial spraying programme, the study’s

failure to assess drift confirms that Colombia failed to evaluate the programme’s

transboundary impacts, even as late as five years into it. Even the Counter-

Memorial concedes that the 2005 study left numerous “remaining uncertaintiesŽ

819
that were “identified as subjects for further studyŽ . These included, according

to Colombia, “the issues of spray drift, the effects on sensitive wildlife such as

820
amphibians and the effects on humansŽ . For example, although spraying had

been ongoing for over five years near Ecuador, the impact on amphibians (which

are particularly sensitive to herbicides) had not been assessed as of 2005. In that

regard, even as late as 2009, the authors of the study could state that “there was

no data on the susceptibility of amphibiansŽ to the spray used in the eradication

programme 821. The Solomon Study also observed that the spray’s impact on

human health in important respects had not been adequately studied, including

with respect to reproductive health 82.

819CCM, Chap. 7, para. 7.12.
820
Ibid.
821
K.R. Solomon et al., “Human Health and Environmental Risks from the Use of Glyphosate
Formulations to Control the Production of Coca in Colombia: Overview and ConclusionsŽ, in
Journal of Toxicology and Environmental Health, Part A 72:914-920, p. 915 (2009) (hereinafter
“Solomon et al., 2009Ž). CCM, Vol. III, Annex 131-A. See also Memorandum of Understanding

between the General Secretariat of the Organization of American States (SG/OAS) and the
Government of Colombia for the execution of the study on the effects of the Program for the
Eradication of Illicit Crops by aerial spraying with Glyphosate Herbicide (PECIG) on human
health and the environment, pp. 228-229 (23 May 2006). CCM, Vol. III, Annex 119.

822Ibid, pp. 914, 917-919. See also Memorandum of Understanding between the General
Secretariat of the Organization of American States (SG/OAS) and the Government of Colombia

for the execution of the study on the effects of the Program for the Eradication of Illicit Crops by

3084.40 Ecuador submits that a document that fails to assess these matters cannot

be deemed an adequate impact assessment, especially in a transboundary context.

4.41 The authors of the 2005 Solomon study emphasized the need for studies

of spray drift. They proposed a specific study, to be completed by 2007, which

was an aerial application “field experimentŽ to be conducted “under conditions in

Colombia to determine spray driftŽ 82. The contemplated study was described as

follows:

“Three non-overlapping spray swaths will be sprayed and spray

targets (water-sensitive paper and filter papers for dye catching)
set out in transects so that a spatial representation of deposition
can be mapped. Test plants of pot-grown maize will also be

placed with targets to evaluate the biological impact of drift
outside the garget area. Applications can be repeated for four

wind speeds (1, 2, 4, and 8 knots). A comparison of predictions
with EPA drift models will evaluate the accuracy of risk
predictions from drift events. Different spray heights will be used
824
as well (30, 50, and 70 m)Ž .

4.42 The Counter-Memorial made no mention of this study or its results. The

Court is thus left with two possibilities: either the study was never conducted,

aerial spraying with Glyphosate Herbicide (PECIG) on human health and the environment, p. 230

(23 May 2006). CCM, Vol. III, Annex 119.
823Memorandum of Understanding between the General Secretariat of the Organization of
American States (SG/OAS) and the Government of Colombia for the execution of the study on the

effects of the Program for the Eradication of Illicit Crops by aerial spraying with Glyphosate
Herbicide (PECIG) on human health and the environment, p. 230 (23 May 2006). CCM, Vol. III,
Annex 119.
824
Inter-American Drug Abuse Control Commission (CICAD), Second Phase Environmental and
Human Health Assessment of the Aerial Spray Program for Coca and Poppy Control in Colombia,
p. 4 (date unknown). EM, Vol. III, Annex 159.

309despite the recommendation by the authors of the 2005 Solomon study, or

Colombia has chosen not to present the results.

4.43 The authors of the 2005 study also proposed a “wind tunnelŽ study “to

characterize the spray droplet spectrum for the nozzles and speed of spraying in

825
ColombiaŽ . This study was carried out by Dr. Andrew Hewitt as part of a

group of studies conducted in collaboration with Dr. Solomon, but not until 2009,

that is, nine years after spraying began near the border and two years after

Ecuador submitted its Application to the Court 826. It was paid for by the

Governments of Colombia and the United States 82.

4.44 The main deficiency in the 2009 Hewitt et al. study … indeed, its fatal flaw

… was already identified in paragraphs 2.191 and 4.7: its predictions of spray drift

and toxicity levels at various distances from the target depended on accurate data

regarding spray plane flight speed and altitude of dispersion, among other

825
Memorandum of Understanding between the General Secretariat of the Organization of
American States (SG/OAS) and the Government of Colombia for the execution of the study on the
effects of the Program for the Eradication of Illicit Crops by aerial spraying with Glyphosate
Herbicide (PECIG) on human health and the environment, p. 230 (23 May 2006). CCM, Vol. III,
Annex 119.

826Hewitt et al., 2009. CCM, Vol. III, Annex 131-B. The Hewitt et. al. (2009) study was part of
a group of studies conducted by the Solomon et al. team, and published in 2009. See CCM, Vol.
III, Annexes 131-A to 131-I.

827See page one of CCM Annexes 131-A through 131-I (“This paper was prepared as part of a
Study entitled ‘Production of Illicit Drugs, the Environment and Human Health,’ financed with

contributions from the Governments of Colombia and the United States of America. The
conclusions and opinions expressed herein are those of the authors and not necessarily those of the
Organization of American States and its General Secretariat, which as of the date of this
copyright, have not formulated any opinion with respect to themŽ.).

310important parameters; but the “dataŽ provided by Colombia were far from

accurate. In fact, Colombia apparently provided no data to the experts it

contracted to perform the study; there is no indication in the reports that Hewitt et

al. received or reviewed any actual spray flight data, even though it had been

automatically generated by each of thousands of spray flights between 2000 and

2009. Instead, the experts made the assumption (or were instructed by Colombia)

that the spray flights rigorously observed the operational requirements mandated

by the EMP in regard to these parameters, and these are the numbers they fed into

their model … even though, as shown in Chapter 2, supra, they bear no relation to

reality. Thus, the 2009 Hewitt et al. study was predicated upon assumptions that

do not reflect the actual spray programme and the conclusions it reached based on

these assumptions have no validity.

4.45 The set of Solomon et al. studies from 2009 also lacks merit because, like

Solomon 2005, they purported to measure the properties, including toxicity levels

at various distances of drift, of a substance other than the one Colombia actually

sprays (or sprayed). The Counter-Memorial fails to mention that the only product

Solomon et al. evaluated in 2009 was a chemical called “GlyphosŽ 82. This name

828
Solomon et al., 2009, op. cit., pp. 915, 916. CCM, Vol. III, Annex 131-A; Hewitt et al., 2009,
op. cit., pp. 921, 922. CCM, Vol. III, Annex 131-B; E.J.P. Marshall et al., “Coca (Erythroxylum
coca) Control is Affected by Glyphosate Formulations and AdjuvantsŽ, in Journal of Toxicology
and Environmental Health, Part A 72:930-936, p. 930 (2009). CCM Annex 131-C; R.A. Brain et
al., “Comparison of the Hazards Posed to Amphibians by the Glyphosate Spray Control Program
versus the Chemical and Physical Activities of Coca Production in ColombiaŽ, in Journal of

Toxicology and Environmental Health, Part A 72:937-948, p. 937 (2009). CCM, Vol. III, Annex

311does not match any of the products that the Counter-Memorial says have been

sprayed (Roundup SL and GLY-41); nor does it correspond to the product

mentioned in the U.S. government records (Roundup Export), or to the

formulation that Colombia referenced in diplomatic exchanges with Ecuador

(Roundup Ultra) 829. Thus, it does not appear that the study addressed any of the

relevant spray mixtures used along the border with Ecuador.

4.46 The Counter-Memorial informs the Court that Solomon et al. 2009

830
evaluated impacts on amphibians . However, even the experts’ unrealistically

low estimate of the spray’s “normal applicationŽ rate resulted in 30-35%

831
mortality for three species . That is a disturbing result for an herbicide that is

131-D; M.H. Bernal et al., “Toxicity of Formulated Glyphosate (Glyphos) and Cosmo-Flux to
Larval and Juvenile Colombian Frogs 1. Field and Laboratory Microcosm Acute ToxicityŽ, in

Journal of Toxicology and Environmental Health, Part A, 72:961-964, p. 961 (2009). CCM, Vol.
III, Annex 131-F; M.H. Bernal et al., “Toxicity of Formulated Glyphosate (Glyphos) and Cosmo-
Flux to Larval and Juvenile Colombian Frogs 2. Field and Laboratory Microcosm Acute
ToxicityŽ, in Journal of Toxicology and Environmental Health, Part A, 72:966-973, p. 966
(2009). CCM Annex 131-G; C. Bolognesi et al., “Biomonitoring of Genotoxic Risk in

Agricultural Workers from Five Colombian Regions: Association to Occupational Exposure to
GlyphosateŽ, in Journal of Toxicology and Environmental Health, Part A 72:986-997, p. 988
(2009). CCM, Vol. III, Annex 131-I. Dr. Dobson asserted that GLY-41 is Glyphos (“Glyphos as
Gly41Ž), but provided no basis for that assertion. Dobson Report, op. cit., p. 521. CCM, Vol. I,

Appendix.
829See supra Chap. 2, paras. 2.18-2.42.

830CCM, Chaps. 3 and 7, paras. 3.56, 7.12, 7.21, 7.76.

831M.H. Bernal et al., “Toxicity of Formulated Glyphosate (Glyphos) and Cosmo-Flux to Larval
and Juvenile Colombian Frogs 2. Field and Laboratory Microcosm Acute ToxicityŽ, in Journal of

Toxicology and Environmental Health, Part A, 72:966-973, p. 971, Table 3 (2009). CCM, Vol.
III, Annex 131-G. See also Charles A. Menzie, Ph.D. & Pieter N. Booth, M.S., Response to:
“Critique of Evaluation of Chemicals Used in Colombia’s Aerial Spraying Program, and Hazards
Presented to People, Plants, Animals and the Environment in Ecuador,” As Presented in:
Counter-Memorial of the Republic of Colombia, Appendix, pp. 19-23 (Jan. 2011) (describing the

deficiencies of the Solomon et al. and Dobson studies on amphibians). ER, Vol. II, Annex 6.

312indiscriminately applied to the home of some of the earth’s most unique,

832
concentrated, and vulnerable amphibian populations . Also troubling is the fact

833
that other spray mixtures were considered less toxic to aquatic life . In other

words, Colombia sprayed for almost a decade near the border … discharging

hundreds of thousands of gallons of a formulated herbicide mixture within 10

kilometres of Ecuador in 114,525 different aerial spraying events 834 … before

considering which substances would be the least harmful to animal-life, and when

a study finally evaluated that issue, Colombia disregarded the answer.

4.47 In sum, the evidence presented in the Counter-Memorial to support

Colombia’s claim to have discharged its EIA obligations, or to have assured itself

that its aerial spraying programme did not affect Ecuador, falls far short of the

mark. Neither of the two Solomon studies cited in the Counter-Memorial … both

of which occurred long after the spray programme commenced near Ecuador …

can be characterized as an EIA. Neither addressed risks to Ecuador, and both

relied upon grossly inaccurate data in regard to evaluation of spray drift.

832
See EM, Chap. 2, paras. 2.13-2.14. Henrik Balslev, Ph.D., The Vulnerability of the Ecuador-
Colombia Border Region to Ecological Harm, pp. 15, 19, 20, 21, 34, 37, 44 (Jan. 2011) (“Ecuador
is ranked third in amphibian diversity worldwide with 415 described species . Only Brazil and
Colombia have more species than Ecuador. . . . Amphibians may serve as indicators of more

extensive environmental change because they are sensitive to environmental contamination and
live in both aquatic and terrestrial environmentsŽ.). ER, Vol. II, Annex 4.
833
E.J.P. Marshall et al., “Coca (Erythroxylum coca) Control is Affected by Glyphosate
Formulations and AdjuvantsŽ, in Journal of Toxicology and Environmental Health, Part A
72:930-936, p. 930 (2009). CCM Annex 131-C.
834
R. John Hansman, Ph.D. & Carlos F. Mena, Ph.D., Analysis of Aerial Eradication Spray
Events in the Vicinity of the Border Between Colombia and Ecuador from 2000 to 2008, pp. 1, 2,
11 (Jan. 2011). ER, Vol. II, Annex 1.

313 B. T HEC OLOMBIAN ENVIRONMENT M INISTRY’SO NGOING FAILURE TO
SECURE AN EIA

4.48 As shown above, Colombia’s Environment Ministry tried, but failed, to

get the executing agency, the DNE, to carry out environmental impact studies for

the aerial spraying programme prior to the first known spray flights along the

border with Ecuador in 2000. The evidence shows that the Environment Ministry

continued its effort to have the environmental impacts of the programme assessed

through 2003, with the same effect: total failure. The Counter-Memorial

mentions none of this, or that not only the Environment Ministry, but also the

Comptroller General and the National Ombudsman repeatedly demanded impact

studies from DNE during this period, but were completely rebuffed. In fact, the

Environment Ministry even fined the DNE for failing to present the required

835
impact assessments .

4.49 In March 2000, two months into the aerial spraying programme in the

border region, the Environment Ministry issued an order that:

x Required the DNE to carry out an analysis of the aerial spraying’s

environmental impacts over time. The Ministry reiterated that in order to

assess potential impacts, it was “necessary to correctly identify the

negative impacts on different environmental, physical-biotic and socio-

83See Republic of Colombia, Ministry of Environment, Resolution 0670, Whereby a sanction is
imposed and other decisions are made, p. 13 (19 Jun. 2003). ER, Vol. V, Annex 148. See also
Rojas Report, op. cit., para. 78. ER, Vol. II, Annex 8.

314 economic componentsŽ 836. The Ministry further explained that the DNE

could not fulfil this obligation by relying, as it had, on secondary

837
international literature .

x Ordered the DNE to conduct studies regarding the spray’s impacts on soil

and animal species, including aquatic organisms. The Ministry specified

that the DNE’s responses to date had merely “open[ed] a range of

information gaps regarding the effects of the glyphosate used in the doses

838
and spray conditions of the Illegal Crop Eradication Program.Ž .

x Required the DNE to explain whether the technical parameters

established for the spray operations had taken into consideration the use

839
of Cosmo Flux 411F .

x Required the DNE to consider measures to address potential harm to

territories bordering national parks, rather than merely stating the special

840
measures taken within national parks .

836
Republic of Colombia, Ministry of Environment, Division of Environmental Licenses, Order
No. 143, pp. 26, 31 (29 Mar. 2000). ER, Vol. V, Annex 133.
837
Ibid., pp. 27.
838Ibid., pp. 29, 31.

839Ibid., pp. 26, 31.

3154.50 The Environment Ministry ordered the DNE to produce these impact

841
studies within three months . The DNE appealed and requested a one-year

delay. The appeal was denied 842. But, still nothing changed. In August 2000, the

Colombian National Narcotics Council ordered changes to the aerial spraying

programme because of the need to address complaints of “damagesŽ to “the

people, the environment, and agricultural and livestock activitiesŽ by “spraying

with glyphosateŽ 84. It acknowledged, in that regard, the need “to strengthen

effective control, follow-up, and monitoring mechanisms that make it possible to

evaluate environmental, agronomic, and health impacts generated by the illicit

844
crops eradication programŽ . Specifically, the Council required the Colombian

National Police and the DNE to assess risks to human health, the environment,

845
agriculture and livestock in the targeted areas . It directed these agencies to

obtain and analyze local information on the “environmental contextŽ of areas

considered for aerial spraying to “determin[e] potential risk for human health, the

840Republic of Colombia, Ministry of Environment, Division of Environmental Licenses, Order

No. 143, pp. 25, 30 (29 Mar. 2000). ER, Vol. V, Annex 133.
841Ibid., p. 31 (29 Mar. 2000).

842See Colombian Ministry of Environment, Resolution No. 341 of 2001, p. 2. EM, Vol. II,

Annex 14. See also, Rojas Report, op. cit., para. 78. ER, Vol. II, Annex 8.
843Resolution No. 005 of 11 August 2000 of the National Narcotics Council of Colombia, p. 118.

CCM, Vol. II, Annex 41.
844
Ibid. See also Rojas Report, op. cit., paras. 54-56. ER, Vol. II, Annex 8.
845Resolution No. 005 of 11 August 2000 of the National Narcotics Council of Colombia, p. 119.

CCM, Vol. II, Annex 41. The resolution also stated, in the only section that Colombia did not
translate in its annex, that the spray operations had been required to comply with several
environmental and health protection measures since as early as 1986. It also reiterated the
requirement, dating back to 1991, that the Health Ministry carry out epidemiological monitoring
plans and implement sanitary controls for use of the herbicide. Republic of Colombia, National

Narcotics Council, Resolution No. 005, pp. 26-27 (11 Aug. 2000). ER, Vol. V, Annex 135.

316environment, and agriculture and livestockŽ for those areas selected “for aerial

spraying with glyphosateŽ 846. The Council also ordered the DNE to hire an

external technical auditor to carry out an “assessment on impacts on the

847
environment, human health, and on agricultural activitiesŽ . Although the

Counter-Memorial briefly refers to the retention of an auditor to ensure that the

spray mixture “conforms with the relevant regulations as to permitted

848
composition and dosage under Colombian lawŽ , it neglects to say that the DNE

was also required to contract for an audit of whether operations are carried out as

required by law and to analyze impacts on the environment, human health and

agricultural activities 849.

4.51 Regardless, the DNE again failed to comply. The Environment Ministry

concluded in September 2000 that “DNE has not undertaken in any of the

submitted documents, a technical or methodological assessment of impact

850
identificationŽ or of environmental risks. It further found that the DNE’s

846Resolution No. 005 of 11 August 2000 of the National Narcotics Council of Colombia, p. 119.
CCM, Vol. II, Annex 41. See also Rojas Report, op. cit., para. 55. ER, Vol. II, Annex 8.

847Resolution No. 005 of 11 August 2000 of the National Narcotics Council of Colombia, p. 122.
CCM, Vol. II, Annex 41.

848CCM, Chap. 6, para. 6.20.

849The Ministry of Environment also pointed out the DNE’s attempt to substitute the terms and
function of the external audit in Resolution 670 of 2003, sanctioning the DNE for its continuing
EMP violations. Republic of Colombia, Ministry of Environment, Resolution 0670, Whereby a

sanction is imposed and other decisions are made, p. 6 (19 June 2003). ER, Vol. V, Annex 148.
850 Republic of Colombia, Ministry of Environment, Division of Environmental Licenses,

Technical Report, No. 589,Evaluation of the Additional Information Provided by the National
Narcotics Directorate, p. 9 (20 Dec. 2000). ER, Vol. V, Annex 136. See also, Rojas Report, op.
cit., para. 78. ER, Vol. II, Annex 8.

317response was “not environmentally viable . . . due to the uncertainty regarding

[the programme’s] potential environmental impactsŽ 851.

4.52 In December 2000, the Environment Ministry, having had all of its prior

requests for impact studies frustrated, demanded that representatives of the DNE

appear before it. At the ensuing meeting, the Ministry again informed the DNE

that the information it had provided, and its level of cooperation more generally,

852
“did not satisfy the [Ministry’s] requirementsŽ . The Counter-Memorial fails to

mention this meeting or its aftermath, but it is clear from statements by the

853
Colombian National Ombudsman that the DNE continued to stonewall on EIA .

4.53 When the DNE submitted a new response, the Ministry of Environment

854
was again compelled to reject it in May 2001 . The reason: none of the 10

topics it addressed evaluated environmental risks 855. Specifically, the Ministry

declared:

“The analysis to determine which areas are environmentally
affected by the eradication program is not supported from a

technical or scientific point of view. It contains neither qualitative

851
Ibid., pp. 13-14.
852
Colombian Ministry of Environment, Resolution No. 341 of 2001, p. 3. EM, Vol. II, Annex
14.
853
Republic of Colombia, Office of Ombudsman, The Implementation of the Strategy of Aerial
Eradication of Illicit Crops With Chemicals, From a Constitutional Perspective, p. 34 (Apr.
2003). ER, Vol. V, Annex 146.
854
Colombian Ministry of Environment, Resolution No. 341 of 2001, p. 9. EM, Vol. II, Annex
14. See also Rojas Report, op. cit., para. 78. ER, Vol. II, Annex 8.
855
Colombian Ministry of Environment, Resolution No. 341 of 2001, p. 3 et seq. EM, Vol. II,
Annex 14.

318 nor quantitative supporting information, nor any supporting

research on programs related to the purpose of the evaluation that
could allow a determination and evaluation of the impacts caused
to natural resources by the application of Glyphosate. Therefore,

the risk assessment is in a very general form, which does not allow
for a detailing or specification of actions to determine risks and to
plan for their management in advanceŽ 856.

4.54 In light of this critique, the Ministry “concludedŽ that the “documents that

have so far been submittedŽ by the DNE did not satisfy “the scope and objectives

defined in the terms of reference, nor the informational requirements that this

Ministry has repeatedly requested from the National Narcotics Directorate

857
(DNE)Ž . In making this determination, the Environment Ministry made the

following specific criticisms:

x There was “no presentation of an evaluation of the supply and

vulnerability of the individual ecosystems and natural resources

contained within the core areas of illicit crops which are the object of

the program, based on which, from a technical point of view,

environmentally critical, sensitive and important ecosystems could be

determined and differentiated, along with the areas that should be

excluded, treated or specially managed in the development and

execution of the program. Nevertheless, the program has resources

and technological tools available . . . to comply with the requirements

of both the environmental plan and the stipulations of the National
858
Narcotics Council in article 2 of resolution 0005 of 2000Ž ;

856
Ibid., p. 4.
857Ibid.

858Ibid., pp. 4-5.

319 x There was “no formulation of evaluation parameters for the

environmental impacts and effects caused by the Glyphosate

eradication program, which could be used to establish in a clear and

acceptable manner a level of certainty to support decision-making on

environmental management measures, which must be considered in
859
the planning and implementation processes of the spraying projectŽ ;

x “In the documents which reference the national Environmental

Management Plan and the Environmental Management Plan for the

Province of Putumayo, no set of programs, actions and concrete

management measures for prevention, control, mitigation,

compensation and correction have been put forward for the possible

impacts and effects caused by the programŽ 860;

x “No concrete, systematic actions are proposed for the tracking and

monitoring of the environmental management measures and their

results, supported by a technical design of a set of environmental
861
quality indicators that the program must comply withŽ ; and

x The DNE failed to hire an external technical auditor to assess the
862
environmental and other impacts of the fumigation program .

4.55 Confronted with the DNE’s intractable opposition to preparing even a

rudimentary impact assessment, the Environment Ministry resorted to stronger

measures. In an Order referred to as Resolution 341 of 2001, it decreed that:

859
Ibid., p. 5.
860Ibid.

861Ibid.
862
Ibid., p. 8, Art. 8.

320 “it is necessary to immediately apply preventative measures as

established in the resolution portion of this decree, with the aim
that these measures, in their development and results, will serve as
a means for this Ministry to definitively impose an Environmental

Management Plan for the activities of the transitio863 regime,
according to article 38 of Decree 1753 of 1994Ž .

4.56 Article 2 of the Decree ordered the DNE, within six months, to conduct

“environmental impact assessments in order to establish the nature and

characteristics of possible environmental impacts generated by said activity in the

4 months before [this decree], to investigate potential environmental effects

according to the findings and to impose the necessary measures to mitigate and/or

compensate for themŽ 864. In Article 7, the Ministry further ordered the DNE to

prepare two specific impact assessments, namely, a regeneration and dynamic

ecological study of sprayed areas; and a glyphosate residue study, including an

analysis of its effects on soil properties 865. In addition to these impact

assessments, the Environment Ministry ordered the DNE to conduct other

activities relevant to its EIA obligation:

x that the DNE comply with the existing prohibition on spraying over

National Parks (Article 3);

x that the DNE identify and map environmentally and socio-

economically sensitive areas, and that it propose and implement buffer

zones, with the approval of the Ministry of Environment (Article 5);

863
Ibid, p. 5.
864Ibid., pp. 5-6.

865Ibid., p. 6.

321 x that the DNE establish “in an immediate and efficient mannerŽ a

contingency plan for “undesired events,Ž as well as an inspection,

verification, and control plan for verifying the adequate

implementation of environmental management measures (Article 6);

and

x that the DNE retain an external, independent auditor, as it was already

required, but had failed to do, under Resolution 005 of 2000 (Article
866
8) .

4.57 Repeating the pattern, the DNE again brushed off the Environment

Ministry’s order. Two months later, in July 2001, the Comptroller General of

Colombia released an audit of the DNE’s operations, drawing attention to the

DNE’s failure to assess environmental impacts. The Comptroller General noted

that despite “sufficient evidence regarding the existence of negative

environmental impactsŽ, the DNE had failed to carry out the necessary

environmental studies:

“Despite sufficient evidence regarding the existence of negative
environmental impacts by forced eradication by aerial spraying on

illicit use crops, which has been reported by various local and
regional authorities as well as the Ombudsman, and which have
caused widespread protests of rejection and questioning at national
and international levels, there is no true monitoring or control of

the eradication policy so long as the Environmental Management
Plan is not approvedŽ 867.

866
Ibid., pp. 5-8.
867Comptroller General of the Republic of Colombia, Appointed Comptroller for the
Environment, Special Audit of the Policy for Eradication of Illicit Crops, p. 2-3 (July 2001). ER,
Vol. V, Annex 137.

3224.58 The Comptroller General urged the Environment Ministry to apply “the

principle of precautionŽ by ordering “the suspension of the chemical eradication

via spraying until the program’s environmental, social and economic implications

868
are determinedŽ . In defiance of the Comptroller’s call to suspend operations,

869
as well as a temporary Colombian court order to do so , Colombia’s Anti-

870
Narcotics Chief ordered the aerial sprayings to continue .

4.59 The continued spraying prompted the Environment Ministry to commence

a formal investigation 871. This included inquiries into:

x the failure of the DNE to conduct the environmental impacts

assessments necessary to identify the scope and character of potential

environmental impacts generated by the spray, and resulting

868Ibid., p. 29.
869
See Rojas Report, op. cit., para. 150, n. 77. ER, Vol. II, Annex 8. The Colombian court
ordered the temporary suspension of the aerial fumigations upon admitting a case presented by the
Organization of Indigenous Populations of the Colombian Amazon (“OPIACŽ) for the spray

program’s violation of indigenous and human rights. After the Government’s open rejection of
the court order, the suspension was terminated on 6 August 2001.
870
“Colombia Drug Czar to Keep SprayingŽ, THE NEW YORK TIMES (New York, 31 July 2001).
ER, Vol. IV, Annex 63.
871
Republic of Colombia, Ministry of Environment, Resolution No. 1066 (26 Nov. 2001). ER,
Vol. V, Annex 139. See also Republic of Colombia, Ministry of Environment, Resolution No.
108, p. 4 (31 Jan. 2002). ER, Vol. V, Annex 141. (“[A]n administrative proceedings has been

initiated aimed at opening an investigation into the failure to comply with some of the
requirements contained in Resolution 341 of 2001 . . . Ž); Republic of Colombia, Ministry of
Environment, Resolution 0670, Whereby a sanction is imposed and other decisions are made (19
Jun. 2003). EM, Vol. II, Annex 19; Republic of Colombia, Office of the Ombudsman, National

Ombudsman Resolution No. 26, Human Rights and International Humanitarian Law in the
Context of Armed Conflict and Fumigation of the Coca Crops in the Province of Putumayo, p. 27
(9 Oct. 2002). ER, Vol. V, Annex 145; Organization of Indigenous Nations of Colombia (ONIC),
Evaluation of the Fumigations in Colombia: Destruction of Rural Areas from Plan Colombia, pp.

3-42…3-43 (Aug. 2002). ER, Vol. III, Annex 29.

323 872
mitigation measures . Specifically, the Environment Ministry

criticized the DNE’s position that carrying out an impact evaluation

was “not possibleŽ 87. The Ministry maintained that the DNE’s

opinion did not obviate the need to produce the required studies,

particularly since they were indeed possible to perform. It thus

ordered the DNE to conduct the assessments “immediately,Ž and to

874
provide quarterly reports on their status .

x the failure to implement the two environmental impact studies within

three months of Resolution 341, as mandated under Article 7, that is,

an ecological regeneration study and a study on the persistence in, and
875
effect of, glyphosate on soil ; and

x the failure to immediately establish an inspection, verification, and

control program to monitor the effectiveness of environmental

protection measures during the spray operations, as required under

Article 6 of Resolution 341 876. In that connection, the Ministry

emphasized that “these activities should have been carried out

immediately, therefore efforts should proceed in the manner
877
already indicated, that is, in an immediate mannerŽ .

4.60 The urgency the Ministry of Environment placed on carrying out each of

these impact assessments could not have been clearer. It reiterated seven times

872Republic of Colombia, Ministry of Environment, Resolution No. 1066, pp. 1-2, 5 (26 Nov.
2001). ER, Vol. V, Annex 139.

873Ibid., p. 2.

874Ibid., pp. 2-3, 5.
875
Ibid.
876
Ibid., pp. 3, 5.
877Ibid., p. 3.

324that the DNE’s compliance must be “immediate Ž, highlighting its importance in

878
bold . None of these facts is mentioned in the Counter-Memorial.

4.61 Concerned about harms already being caused by the aerial spraying and

frustrated by the DNE’s failure to implement an adequate EMP after so many

years, on the same day, the Ministry of Environment finally imposed an EMP,

879
under Resolution 1065 .

4.62 Yet, the DNE still kept refusing to carry out environmental impact

assessments. Thus, in January 2002, the Environment Ministry again felt

880
compelled to order the production of the long-overdue impact studies . It

reiterated that the DNE had failed to present, among other things, environmental

impacts assessments as required by Article 2 of Resolution 341. Nor had it

produced the two studies on glyphosate (as required by Article 7), on ecological

regeneration and glyphosate’s effects on soil 881.

878
Ibid. (emphasis in original).
879Republic of Colombia, Ministry of Environment, Resolution No. 1065 (26 Nov. 2001). EM,

Vol. II, Annex 15. See also Rojas Report, op. cit., paras. 78-79. ER, Vol. II, Annex 8.
880Republic of Colombia, Ministry of Environment, Resolution No. 108 (31 Jan. 2002). ER, Vol.

V, Annex 141.
881Ibid. The Ministry also informed the DNE that, as the authority responsible for the aerial

fumigation program, it was “responsible for ensuring that in the development of the PECIG, the
management measures, prevention, mitigation, environmental control and compensation are
observed and taken into account by the actors under its coordination, as appropriateŽ. Ibid., pp. 3,
12.

3254.63 At a February 2002 meeting with Ecuadorian officials, representatives of

the DNE and the Anti-Narcotics Police agreed “that there is a lack of objective

and impartial scientific research to study the short- and long-term impacts to the

environment and to health, as well as the chemical formulations used to eliminate

882
illicit cropsŽ . The Colombian delegation also admitted that since the spray

mixture’s “application is not completely uniform in the field . . . it cannot be said

883
that there are no risks to the ecosystemŽ .

4.64 Faced with the persistent refusal by the DNE to assess risks, and

confronted by mounting evidence of actual harm, Colombia’s National

Ombudsman, in October 2002, called for suspending aerial sprayings in

Putumayo department (bordering Ecuador), and declared that the suspension

should remain in place until the spraying programme was brought into

compliance with the existing legal obligations 88. The need for the suspension

882Republic of Ecuador, Ministry of Environment, Joint Report from the Workshop: Eradication

of Illicit Crops, Bogotá, Colombia, p. 2 (13-15 Feb. 2002). EM, Vol. IV, Annex 163.
883Ibid., p. 10.

884These included “particularly those obligations relating to the prohibition from fumigating over
indigenous territories and bodies of waterŽ. Republic of Colombia, Office of the Ombudsman,

National Ombudsman Resolution No. 26, Human Rights and International Humanitarian Law in
the Context of Armed Conflict and Fumigation of the Coca Crops in the Province of Putumayo, p.
37 (9 Oct. 2002). ER, Vol. V, Annex 145. The Ombudsman also explained how, despite the fact
that the DNE had the geographic information necessary to avoid these vulnerable and excluded
areas, the DNE had sprayed over these areas nonetheless. See Republic of Colombia, Office of

the Ombudsman, National Ombudsman Resolution No. 26, Human Rights and International
Humanitarian Law in the Context of Armed Conflict and Fumigation of the Coca Crops in the
Province of Putumayo, p. 27, para. 3.10.4 (9 Oct. 2002) (explaining that Art. 5(d) of the 2001
EMP “prohibits the forced eradication in still and running bodies of water, in areas of human
settlement, in indigenous reservations and areas of productive and agreed upon projects. In order

to preserve these areas, the Portfolio defines minimum safety strips, ranging from 200 to 2,000

326was underscored, the Ombudsman said, by the DNE’s long-standing failure to

address fundamental obligations, including those concerning monitoring and

mitigating the spray’s health and environmental impacts 88. The Ombudsman

also cited the DNE’s failure to perform an Environmental Audit and the further

886
failure to adopt or implement an Epidemiological Monitoring Plan .

4.65 By June 2003, that is, three-and-a-half years after the spraying began

along the border with Ecuador, there still was no EIA or even a rudimentary

impact study regarding the aerial spraying programme. As a result, the Ministry

of Environment took the unprecedented step of formally sanctioning and fining

the DNE for failing to assess environmental impacts, on 19 June 2003 88. Rather

than a proper assessment of the programme’s environmental impacts, the DNE

meters. . . . Despite the fact that, on April and July of this year, the PNDA submitted a compact
disc to the DNE with information regarding the alternative development projects and indigenous
territories, these were sprayed, as shown in the complaints filed before the Ombudsman and the
DNEŽ.). ER, Vol. V, Annex 145.

885Republic of Colombia, Office of the Ombudsman, National Ombudsman Resolution No. 26,
Human Rights and International Humanitarian Law in the Context of Armed Conflict and

Fumigation of the Coca Crops in the Province of Putumayo, p. 33 (9 Oct. 2002) (“The health of
inhabitants of sprayed areas and the environment are equally threatened, since the spraying is
carried out without fulfilling the essential preventive measures designed to prevent, control and
mitigate potential damage to the population’s health and the environment. Such measures include
the engaging of an environmental auditor, the implementation of an Epidemiological Monitoring

Plan and the strict compliance with the Environmental Management Plan. However, as is clear
from this resolution, the aerial spraying has been conducted ignoring the Environmental
Management Plan, especially since such spraying was effectuated on indigenous communities and
contaminated certain water suppliesŽ.). ER, Vol. V, Annex 145.

886Ibid., pp. 27, 33, 37. In addition, the Ombudsman urged the CNE to revise the complaint
mechanisms created under Resolution No. 17, due to ongoing and fundamental flaws in the

procedure. Ibid., p. 37.
887Republic of Colombia, Ministry of Environment, Resolution 0670, Whereby a sanction is

imposed and other decisions are made, p. 13 (19 Jun. 2003). ER, Vol. V, Annex 148. See also,
Rojas Report, op. cit., para. 78. ER, Vol. II, Annex 8.

327had merely presented a literature review of impacts caused by coca crops (not the

888
spray mixture that was used to eradicate them) . Brazenly, the DNE defended

its inaction based on what it called “the impossibility of carrying out

environmental impact evaluations during the execution of the programŽ 88. In

other words, after blocking all efforts to carry out environmental impact

assessments before the aerial spraying programme became operational, the DNE

argued that it was impossible to carry out such assessments afterwards, while it

was being executed. The DNE thus created its own version of Catch 22. The

Environment Ministry was not amused 890.

4.66 By June 2003, upon fining the DNE for its refusal to comply with its legal

obligations to assess environmental impacts, the Ministry of Environment had

confirmed that:

x there was still no impact study designed “to establish the nature and

characteristics of possible environmental impactsŽ, as required by

Article 2 of Resolution 341;

888Republic of Colombia, Ministry of Environment, Resolution 0670, Whereby a sanction is
imposed and other decisions are made, p. 8 (19 Jun. 2003). ER, Vol. V, Annex 148. See also

ibid., p. 6 (“the argument presented does not meet the requirements under letter b), Article 6 of
Resolution 341 of 2001, for verification and assessment of environmental management measures
during PECIG operations, because it identifies the impacts generated by the establishment of
illegal crops and not the impacts of aerial sprayingŽ).
889
Ibid., p. 6.
890
Ibid. (“[T]his Ministry does not share this opinion since it is a very common practice to
conduct ex post facto evaluations to determine the effects of an activity on the environment and,
based on the analysis of this evaluations, ascertain if the foreseen impacts and environmental
management measures give optimum results and/or suggest measures to mitigate and/or offset
said impactsŽ.).

328 x there was still no study assessing either the ecological regeneration in

sprayed areas or the degree to which glyphosate remains in soil as

residue and its effects on the physio-chemical and biological

properties of the soil, as required by Article 7; and

x there was still no inspection, verification and control programme to

evaluate the effectiveness of the spray programme’s environmental

891
management measures, as required by Article 6 .

In other words, the DNE had complied with none of the environmental impact

obligations that had been imposed upon it by the Ministry of Environment. The

Counter-Memorial is silent about this. Instead, it tells the Court that the

892
Environment Ministry and the DNE “jointly workedŽ to develop the EMP .

4.67 The Environment Ministry’s decision to fine the DNE produced a

backlash that ended its efforts to require an assessment of the aerial spraying

programme’s environmental impacts. Thereafter, the Minster of Environment

893
was compelled to resign . The new Minister had no environmental experience,

891
Ibid., pp. 4-9,12-13.
892CCM, Chap. 4, para. 4.13 (emphasis added).

893“Suarez new Environment Minister as Rodriguez QuitsŽ,USINESS N EWS A MERICAS (14 Nov.
2003). ER, Vol. IV, Annex 79. The National Narcotics Council also retaliated against the

Environment Ministry’s sanctions by eviscerating the environmental protections that had been
imposed to protect national parks. In that regard, the Council renounced any intention to abide by
the exclusion areas and buffer zones that had protected these areas since the inception of the spray
programme. Resolution No. 013 of 27 June 2003 of the National Narcotics Council of Colombia.
CCM, Vol. II, Annex 49. As a result, the DNE was given plenary authority to spray directly over

protected areas, including national parks. The Resolution was signed by the President of the
Council, Mr. Fernando Londoño Hoyos, who also held the position of Minister of Interior and
Justice. This was all done in open disregard of Colombia’s existing environmental protections.
See Rojas Report, op. cit., paras. 80-82. ER, Vol. II, Annex 8.

329but had served as the Presidential Advisor on Plan Colombia, that is, the person

894
responsible for promoting and coordinating the aerial spraying programme . In

a classic understatement, the Colombian newspaper El Tiempo commented, “It is

895
not clear whether the new minister has the capacity and experienceŽ.

4.68 Unsurprisingly, the Ministry of Environment never again challenged the

DNE’s failure to assess the environmental impacts of the aerial spraying

programme. Nor, apparently, did any other agency of the Government of

Colombia.

C. T HE FAILED E FFORTS OF COLOMBIA ’S COURTS TO SECURE AN EIA

4.69 Attempts to compel the DNE to conduct an EIA in regard to the aerial

spraying programme were also made by Colombia’s courts. They, too, met with

no success. And they, too, are ignored in the Counter-Memorial.

4.70 In June 2003, the Administrative Court of Cundinamarca issued a

judgment in a class action lawsuit brought by Colombian citizens who had been

harmed by the aerial spraying programme 89. The court ruled that the DNE had

89CCM, Chap. 5, para. 5.18; “Suarez new Environment Minister as RodrigueUSINESSŽ, B
NEWS A MERICAS(14 Nov. 2003). ER, Vol. IV, Annex 79.

89“Billiard Shot on Three GangLTIEMPO (Bogotá, 13 Nov. 2003). ER, Vol. IV, Annex 78.

896Republic of Colombia, Administrative Tribunal of Cundinamarca, Claudia Sampedro and
Others, Judgment (13 June 2003). ER, Vol. V, Annex 147. See also Rojas Report, op. cit., paras.
87-88. ER, Vol. II, Annex 8.

330failed to meet its obligations under the EMP, as established by Resolution 1065,

and that the sprayings violated the citizens’ right to a healthy environment. It

thus ordered the sprayings to cease until the DNE fully complied with its

obligations under Articles 2, 6, 7, and 8 of Environment Ministry Resolution

341 897. These included the DNE’s obligations to carry out environmental impact

studies on territories sprayed (article 2); to establish an inspection, verification

and control plan for monitoring the implementation of the environmental

management measures (article 6); to conduct two specific soil impact studies to

establish the chemicals’ permanence in Colombian soil (article 7); and to hire an

external, independent auditor to evaluate impacts on the environment, human

898
health, and agriculture and livestock (article 8) . The court also ordered studies

on whether the aerial spraying was harmful to the environment and human health,

including a cohort study comparing the health of Colombian citizens exposed to

899
the sprayings with a control group . The court further ordered the DNE to

identify the harm caused by the sprayings “with glyphosate plus POEA plus

897Republic of Colombia, Administrative Tribunal of Cundinamarca, Claudia Sampedro and

Others, Judgment, p. 113 (13 June 2003). ER, Vol. V, Annex 147. See also Rojas Report, op.
cit., para. 88. ER, Vol. II, Annex 8.
898
Republic of Colombia, Administrative Tribunal of Cundinamarca, Claudia Sampedro and
Others, Judgment, p. 113 (13 June 2003). ER, Vol. V, Annex 147. See also Rojas Report, op.
cit., para. 88. ER, Vol. II, Annex 8.
899
Republic of Colombia, Administrative Tribunal of Cundinamarca, Claudia Sampedro and
Others, Judgment, p. 113-114 (13 June 2003). ER, Vol. V, Annex 147. See also Rojas Report,
op. cit., para. 88. ER, Vol. II, Annex 8.

331Cosmo FluxŽ and to implement the correction, mitigation and compensation

900
measures required by law under CNE Resolution 17 of 2001 and the EMP .

4.71 The Colombian government appealed the decision. In the meantime, it

refused to comply with the court order to suspend the aerial sprayings, and it

refused to conduct the impact studies or the external audit ordered by the court.

Colombia President Álvaro Uribe announced, “while I am president, we will not

suspend the fumigationŽ 90. This made it indisputably clear that, as between drug

eradication and environmental protection (or protection of Colombian nationals

against the health consequences of exposure to the spray mixture), the priority

was given to the former, at the expense of the latter, even in the face of a court

order.

4.72 In October 2004, the Colombian Council of State ruled on the appeal.

Although it recognized that the aerial sprayings do cause harm (“the evidence

clearly demonstrates ƒ that certain problems and complaints do ariseŽ) 902, the

Council of State determined that the harms are outweighed by Colombia’s

900
Republic of Colombia, Administrative Tribunal of Cundinamarca, Claudia Sampedro and
Others, Judgment, p. 114 (13 June 2003). ER, Vol. V, Annex 147. See also Rojas Report, op.
cit., para. 88. ER, Vol. II, Annex 8.

901“We Will Continue To Fumigate While I Am PresidentŽ, EL TIEMPO (Bogotá, 30 Jun. 2003).
ER, Vol. IV, Annex 76.

902State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca, p. 10 (19 Oct. 2004). ER, Vol. V, Annex 151. See
also Rojas Report, op. cit., paras. 89-90. ER, Vol. II, Annex 8.

332pressing need to eradicate illicit drugs, and the harms could be limited if strict

safeguards are applied to the programme: “permanent and strict controls of

903
fumigation activities are requiredŽ .

4.73 Thus, the Council of State ordered the aerial spray program to adhere with

“strict complianceŽ to “the Environmental Management Plan, imposed by

resolution No. 1065, as well as the obligations noted in articles 2, 6, 7, and 8 of

resolution No. 341 of 2001Ž 904:

“Clearly, the guidelines stated by the environmental authorities
should be followed when illicit crops are being sprayed, and not
even the slightest deviation from these should be permitted, which

means that it is therefore necessary for permanent controls to be
undertaken, with continuous evaluations, of any effects which
905
might begin to appearŽ .

4.74 The Council of State further ordered the DNE to assess the environmental

effects of the complete spray mixture, that is, “glyphosate plus POEA plus

CosmofluxŽ, on areas that had been sprayed … adopting as its own the Ministry of

903
State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca, p. 10 (19 Oct. 2004). ER, Vol. V, Annex 151. See
also Rojas Report, op. cit., paras. 89-90. ER, Vol. II, Annex 8.
904
State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca (19 Oct. 2004), p. 10. ER, Vol. V, Annex 151. See
also Rojas Report, op. cit., paras. 89-90. ER, Vol. II, Annex 8.

905State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca, p. 10 (19 Oct. 2004). ER, Vol. V, Annex 151. See
also Rojas Report, op. cit., paras. 89-90. ER, Vol. II, Annex 8.

333 906
Environment’s long-standing demand . The Council also ordered the Ministry

of Social Protection (Colombia’s Health Ministry) to evaluate Colombians who

had been exposed to “glyphosate plus POEA plus Cosmo FluxŽ, for the purpose

of determining the spray’s impact on their health and lives 907. The Council

further ordered that both agencies “receive the necessary supervision for ensuring

908
that follow up is carried out of the effects of fumigationŽ .

4.75 The Counter-Memorial discusses the decision of the Council of State, but

fails to mention any of these elements of it. The Counter-Memorial also fails to

report that none of the orders issued by the Council of State were complied with

by the DNE or the Ministry of Social Protection. Specifically, the DNE failed to

comply with the Council’s orders to: (i) follow “the guidelines stated by the

environmental authorities . . . when illicit crops are being sprayed, and not even

the slightest deviation from these should be permittedŽ; (ii) undertake “permanent

controls . . . with continuous evaluations, of any effects which might begin to

appearŽ; or (iii) assess the environmental effects of the complete spray mixtureŽ

on areas subject to aerial spraying. And the Ministry of Social Protection failed

906
State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca, p. 11 (19 Oct. 2004). ER, Vol. V, Annex 151. See
also Rojas Report, paras. 89-90. ER, Vol. II, Annex 8.
907
State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca, p. 11 (19 Oct. 2004). ER, Vol. V, Annex 151. See
also Rojas Report, op. cit., paras. 89-90. ER, Vol. II, Annex 8.

908State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca, p. 11 (19 Oct. 2004). ER, Vol. V, Annex 151. See
also Rojas Report, op. cit., paras. 89-90. ER, Vol. II, Annex 8.

334to obey the Council’s order to protect Colombia’s citizens by “determining the

spray’s impact on their health and livesŽ. At least, the Counter-Memorial

presents no evidence of compliance by either agency with these orders.

*

4.76 In sum, Colombia has no case on EIA. Contrary to the assertions made in

the Counter-Memorial, it conducted no such assessment, either before

commencing aerial spraying along the border with Ecuador in January 2000, or at

any time thereafter. To the contrary, the Colombian government agency

responsible for carrying out the programme … the DNE … stubbornly (and

successfully) resisted all attempts by other governmental authorities to cajole,

persuade or even order it to carry out any form of assessment of the programme’s

environmental impacts. It was able to get away with this because it had the

support of Colombia’s highest authorities, including the President of the

Republic. Colombia could not allow an EIA to be conducted without running the

risk that its findings would be so devastating that it would be impossible to

continue the spraying. In the President of Colombia’s own words: “[W]hile I am

president, we will not suspend the fumigationŽ 909.

909“We Will Continue To Fumigate While I Am PresidentŽ, EL TIEMPO (Bogotá, 30 Jun. 2003).
ER, Vol. IV, Annex 76.

335 Section III. The Spray Programme Violates Other Critical Operational
and Safety Requirements

4.77 In this Section, Ecuador further demonstrates the falsity of the Counter-

Memorial’s assertion that the aerial spray programme is conducted “in

910
accordance with the environmental provisions in forceŽ . It has already been

established that no EIA has ever been conducted, and that the programme makes

a mockery of the operational requirements in the EMP that are intended to

prevent spray drift. In this Section, Ecuador shows how the programme also

violates other important safety requirements, including obligations imposed by

Colombian law that are also intended to avoid spray drift and its associated harms

to people, animals, plants and the environment. Colombia can hardly claim to

satisfy its obligation of due diligence when it routinely and blatantly violates its

own safety laws and regulations regarding the handling and use of toxic

pesticides like those contained in the spray mixture deposited along and near the

border with Ecuador.

4.78 Since pesticides, if not used properly, can cause serious harm to human

health and the environment, they are required to have warning labels that give

legally binding instructions for how and under what circumstances they may be

used. A label thus represents a State’s considered view on what is required for a

particular pesticide to be applied safely.

910CCM, Chap. 4, para. 4.23.

3364.79 In most jurisdictions … including Colombia … using a pesticide in a manner

inconsistent with its label is illegal, and violations carry civil or criminal

penalties 91. Indeed, as the UN Food and Agriculture Organization’s (“FAOŽ)

guidelines on aerial spraying explain, “[i]n most countries, adhering to the label

912
recommendations is a legal obligationŽ .

4.80 In aerial spraying of herbicides, compliance with a label has an especially

close link to environmental protection and human health. For example, the

Australian Pesticides and Veterinary Medicines Authority (“APVMAŽ) explains

that enforcing label instructions is critical to preventing aerial spraying from

causing harm to people and the environment:

“When the APVMA considers registering an agricultural chemical

product, it must satisfy itself, according to scientific principles,
that the product can be used to achieve its intended purpose and at

the same time not be likely to harm human health, the environment
or Australia’s international trade. To achieve this end, the
APVMA determines instructions for use and limitations on use for

each product and places them on the product’s label. User

911
EM, Chaps. 2 and 5, paras. 2.8, 5.39-5.40; see also European Union, Council Directive
Concerning the Placing of Plant Protection Products on the Market, 91/414/EEC, Art. 3(3) (15
July 1991) (“Member States shall prescribe that plant protection products must be used properly.
Proper use shall include compliance with the conditions . . . specified on the labellingŽ); infra
Chap. 4, n. 181.

912Food and Agriculture Organization of the United Nations, Guidelines on Good Practice for
Aerial Application of Pesticides, p. 8 (2001). ER, Vol. IV, Annex 98. The FAO further explains

that “[t]he product label carries statutory instructions for the user, and must cover the crops for
which it is registered, the recommended dose rate, the number of treatments permitted during the
growing season and how many days before harvest the last treatment may be applied.
Additionally, the label will ƒ advise on environmental protection measures to be carried out.
Such measures may refer to a ‘non-spray’ barrier (buffer zone). . . . The product label should
provide application details, which should include nozzle selection, volume applied, and

application timingŽ. Ibid., pp. 8-9.

337 compliance with these instructions and limitations falls under the
913
enforcement powers of the states and territoriesŽ .

4.81 The U.S. Environmental Protection Agency (“U.S. EPAŽ) makes the same

point, emphasizing that label compliance is important for preventing damage to

human health and the environment from spray drift:

“In the U.S., the Agency can assure significant controls on use and
potential health and environmental impacts through the pesticide
label, and through a state infrastructure which governs label

compliance to address issues such as drift and worker and
bystander exposureŽ 914.

4.82 Like other States, Colombia only allows application of a pesticide if its

Agriculture Institute, which falls under the jurisdiction of the Ministry of

915
Agriculture, has approved a label for it . Thus, the approval of a label indicates

what the Colombian regulatory authorities themselves believe is necessary to

protect human health and prevent environmental harm. Since a label is specific to

913
Australian Pesticides and Veterinary Medicines Authority (APVMA), AVPM Operating
Principles in Relation to Spray Drift Risk, p. 2 (15 July 2008) (hereinafter “APVMA Operating
PrinciplesŽ). ER, Vol. III, Annex 22.
914
United States Environmental Protection Agency, Office of Prevention, Pesticides and Toxic
Substances, Report on Issues Related to the Aerial Eradication of Illicit Coca in Colombia,
Response from EPA Assistant Administrator Johnson to Secretary of State, p. 2 (19 Aug. 2002).
EM, Vol. III, Annex 143. The importance of following label instructions is also recognized by

pesticide manufacturers. The Spray Drift Task Force, a group of 38 agricultural chemical
companies which collaborated on spray drift studies in the United States, notes that “[u]se of
pesticide products is strictly governed by label instructions.Always read and follow label
directionsŽ. Spray Drift Task Force, A Summary of Aerial Application Studies (1997). ER, Vol.
III, Annex 10.

915Rojas Report, op. cit., paras. 104-105. ER, Vol. II, Annex 8.

338a single herbicide, it is a reflection of the authorities’ views on the precautions

916
that are necessary to prevent harm from use of that herbicide .

4.83 Unable to justify or even explain Colombia’s failure to comply with the

labels required by its regulatory authorities, the Counter-Memorial seeks to

minimize their importance. For example, paragraph 7.15 attempts to dismiss a

pesticide label as “similar to that commonly found … and generally required … to

appear on over-the-counter and prescription medicines, household products, and

917
even processed food productsŽ . But Colombia’s position in the Counter-

Memorial contradicts its own laws, which make it unlawful to use a pesticide in

918
ways that are at variance with the label . Regulations governing the use of

pesticides, promulgated by the Colombian Ministry of Health, provide that:

“All persons involved in the management and use of pesticides
must comply with the norms related to the respective activity, as

laid out in this decree . . . . Use products according to the
instructions on the labels or with the technical assistance of the
919
companyŽ .

916
Ibid.
917CCM, Chap. 7, para. 7.15; see also CCM, Chap. 7, paras. 7.150, 7.165.

918Rojas Report, op. cit., para. 104. ER, Vol. II, Annex 8.

919Republic of Colombia, Ministry of Health, Decree No. 1843 (22 July 1991), as amended by
Decree No. 695 (26 April 1995) and Decree No. 4368, Arts. 180, 181(h) (4 Dec. 2006). EM, Vol.
II, Annex 11; see also Rojas Report, op. cit., para. 104. ER, Vol. II, Annex 8.

3394.84 In Colombia, as elsewhere, failure to use a pesticide in accordance with its

920
label instructions subjects the user to civil and criminal penalties

4.85 As detailed below, Colombia’s aerial spraying programme consistently

and flagrantly violates the label instructions for the pesticides used in its spray

mixtures. The pervasive violations of standards that Colombia itself has adopted

for the specific chemical products in question is strong evidence of a likelihood of

harm and of Colombia’s failure to exercise due diligence.

A. R OUNDUP SL

4.86 Consider, for example, the label for Roundup SL, the herbicide that the

Counter-Memorial says was used from 2000 until 2005, when it was replaced

because of its propensity to damage human eyes. The label for Roundup SL,

approved by the Colombian Agriculture Institute, sets mandatory limits on,

among other things, droplet size, height of spray release and wind speed, all of

which reflect the regulatory agency’s views on what is necessary to prevent spray

drift and avoid unsafe application of the herbicide 92. The Counter-Memorial

acknowledges that this label corresponds to one of the herbicide products used in

920Rojas Report, op. cit., para. 104, n. 43. ER, Vol. II, Annex 8.

921Colombia Roundup SL Label. EM, Vol. III, Annex 115.

340the spray program 92, but avoids mentioning that the aerial sprayings violate each

of the label’s requirements.

4.87 In particular, Colombia’s Roundup SL label requires droplets to be no

923
smaller than 250 microns . The actual size of the droplets, according to a study

paid for by the Colombian and U.S. governments, is much smaller: they have a

924
median diameter of 128 microns . That is approximately half the size of the

smallest droplets permitted by the label. In fact, according to the same study, half

of the droplets are smaller still 925.

4.88 Droplet size smaller than the allowable minimum is not the only way in

which the spray programme violates Colombia’s Roundup SL label. In addition,

Colombia allows spraying at much higher temperatures than the label permits.

Although the label instructs against spraying when the temperature is higher than

29qC, the programme’s EMP permits spraying at temperatures as high as 35qC.

As explained in Chapter 2, warmer air increases evaporation of the spray droplets,

926
thereby reducing their size and making them more prone to drift .

4.89 The aerial spraying programme further violates Colombia’s Roundup SL

label because the spraying takes place at much greater heights than is permitted

922CCM, Chap. 4, para. 4.50, n. 310 (referencing Roundup SL Label, EM, Vol. III, Annex 115).
923
Colombia Roundup SL Label. EM, Vol. III, Annex 115.
924
Hewitt et al, 2009, op. cit., p. 921. CCM, Vol. III, Annex 131-B.
925See supra Chap. 2, para. 2.136.

926See supra Chap. 2, para. 2.151.

341by the label. Although the label forbids spraying at heights more than 2 metres

above the crop, the programme permits spraying as high as 50 metres (and higher

if there are obstacles) 927. That is approximately twenty-five times higher than

allowed by Colombia’s label. And, in reality, as shown in Chapter 2, the planes

frequently spray from even higher altitudes: no fewer than 16,143 flights between

2000 and 2008 and within 10 kilometres of Ecuador’s border have dispersed the

928
spray mixture above 50 metres . The excessive height of Colombia’s spray

operations significantly increases spray drift, as Ecuador showed in Chapter 2.

4.90 The programme also violates the Roundup SL label’s restrictions

929
regarding wind speed. This too has significant implications for spray drift .

Although the label does not allow spraying when the wind is blowing faster than

7 kilometres per hour, the programme’s EMP permits it to occur in conditions as

930
windy as 9.26 km/h .

927Resolution No. 1054 of 30 September 2003 of the Ministry of Environment of Colombia, p. 173

(hereinafter (“2003 Environmental Management PlanŽ). CCM, Vol. II, Annex 50.
928See supra Chap. 2, para. 2.103.

929See supra Chap. 2, para. 2.152

9302003 Environmental Management Plan, p. 174. CCM, Vol. II, Annex 50. Colombia also
violates the Roundup SL label by using the product for an unauthorized purpose. In that regard,

the label states that Roundup SL may only be applied for “AGRICULTURAL USEŽ. Colombia
Roundup SL Label. EM, Vol. III, Annex 115. The aerial spraying programme, however, cannot
by any stretch of the imagination, be construed as an agricultural use. Indeed, Colombia does not
even try to claim that it is. To the contrary, Colombia has insisted that “coca eradicationŽ is a
“non-agricultural use of glyphosateŽ. CCM, Chap. 7, para. 7.14 & n. 551. Pesticides in Colombia

may only be employed for authorized uses. Rojas Report, op. cit., paras. 110-119. ER, Vol. II,
Annex 8.

3424.91 Accordingly, contrary to the Counter-Memorial, Colombia’s aerial

spraying of Roundup SL violates the restrictions that Colombia itself has imposed

for that very herbicide, precisely in order to prevent spray drift and its associated

931
harms to off-target areas, including human settlements.

B. GLY-41

4.92 Like Roundup SL, the Counter-Memorial refers to the label for GLY-41,

the other herbicide that Colombia admits to spraying 93. But, as with Roundup

SL, the Counter-Memorial fails to mention that the spray programme regularly

violates the restrictions set forth in that label, too.

4.93 The label for GLY-41, approved by Colombia’s Agriculture Institute,

establishes what the agency considers to be the necessary restrictions for its safe

application, including those meant to prevent spray drift.

4.94 For example, Colombia’s GLY-41 label states that because “coarse sprays

are less likely to driftŽ, users are forbidden from employing “nozzles or nozzle

931
Failure to comply with the product labels has also been noted by the Colombian Agricultural
Institute (ICA). In a report published in 1999, the ICA informed the DNE that the addition of
Cosmo-Flux 411F violates the label requirement of “not adding adjuvantsŽ. Republic of
Colombia, Ministry of Environment, Division of Environmental Licenses, Order No. 599, p. 17

(23 Dec. 1999). ER, Vol. V, Annex 132. The ICA also noted that the application rate of 10.4
litres per hectare is 42.4% higher than the application rate of 6 litres per hectare recommended by
the manufacturer. Ibid., p. 15.
932
CCM, Chap. 4, para. 4.50, n. 310 (referencing Label and Safety Data Sheet for GLY-41, CCM,
Vol. III, Annex 134).

343configurations which dispense spray as fine spray dropletsŽ 933. However,

Colombia’s own study determined that the droplets dispersed by its spray planes

934
are “very fine to fineŽ . In other words, Colombia sprays in precisely the

manner proscribed by the Agriculture Institute’s label, which specifically

prohibits “fine spray dropletsŽ. As described in the Giles Report, the size of the

spray droplets is one of the principal drivers of spray drift and long-distance

deposition. The “fineŽ spray droplets created under the conditions of application

in Colombia are especially prone to spray drift 935.

4.95 Colombia also violates the GLY-41 label in another way that has

important implications for human health and environmental protection: it sprays

the herbicide at an impermissibly high concentration. In that regard, the label

requires an applicator to “[u]se the recommended dose of herbicide in 20 to 140

936
litres of water volume per hectare unless otherwise specified on the labelŽ .

937
Contrary to this instruction, Colombia adds only 13 litres of water per hectare .

933
Label and Safety Data Sheet for GLY-41, p. 433. CCM, Vol. III, Annex 134.
934
Hewitt et al, 2009, op. cit., p. 921. CCM, Vol. III, Annex 131-B.
935See supra Chap. 2, para. 2.138.

936Label and Safety Data Sheet for GLY-41, p. 433. CCM, Vol. III, Annex 134. The label, as
provided by Colombia in Annex 143 to its Counter-Memorial, does not provide any alternative

specifications. Ibid.
937Report by the Anti-Narcotics Direction of the Colombian National Police (DIRAN), p. 306 (8

Feb. 2010). CCM, Vol. II, Annex 67.

344The excessive concentration is important because a more concentrated spray

938
mixture enhances its toxicity and the risk of injury to off-target plants .

4.96 By implementing the spray programme in the manner it has … in disregard

of its own legally-mandated product label requirements … Colombia has violated

its own legal protections against harm to human health, animals, non-target plants

and the environment. Despite the high risks inherent in aerial spraying of toxic

herbicides, Colombia ignored its legal obligations to carry out an EIA 939, to

comply with the operational requirements of the EMP (which has the status of

law in Colombia) 940, and to adhere to the legal mandate to use these herbicides in

941
strict conformity with label instructions . As discussed in Chapter 7,

Colombia’s disregard of laws and binding regulations in all these respects

demonstrates, at the least, its failure to fulfil its duty of due diligence in the

conduct of the aerial spraying programme.

938Stephen C. Weller, Ph.D., Glyphosate-Based Herbicides and Potential for Damage to Non-

Target Plants Under Conditions of Application in Colombia, pp. 21-22 (Jan. 2011). ER, Vol. II,
Annex 3.
939
See supra Chap. 4, Sections I and II.
940See supra Chap. 2, paras. 2.65-2.73

941See supra Chap. 4, paras. 4.78-4.95.

345 Section IV. Colombia’s Spray Programme Would Not Be Allowed
Elsewhere

4.97 In this Section, Ecuador shows that the conduct of Colombia’s aerial

spraying programme is not just unlawful under Colombian law; it is also

irreconcilable with environmental laws the world over.

4.98 The Counter-Memorial is exaggerating when it asserts that the

programme is “heavily regulatedŽ 94. In reality, the rules that govern Colombia’s

aerial spraying … even if they were enforced (as shown in this and Chapter 2, they

are not) … are among the most lenient in the world. Indeed, many jurisdictions,

including the European Union, have banned aerial spraying outright, except in

very limited circumstances. Those jurisdictions that do allow aerial spraying

subject it to restrictions that are far stronger than those in Colombia, in order to

minimize the risks of spray drift. This further demonstrates that Colombia sprays

in a manner likely to cause significant harm, and violates its duty of due

diligence.

A. E UROPE

4.99 The Counter-Memorial falsely claims that Colombia’s aerial spraying

programme is endorsed by the European Union. The only “supportŽ for this

improbable claim is a reference to a book published in Bogotá by one of

94CCM, Chap. 7, para. 7.31.

346Colombia’s Foreign Ministers during the execution of the programme, Mr.

Guillermo Fernández de Soto. The cited parts of his book are not annexed to the

Counter-Memorial 943.

4.100 Colombia should have checked with the original source, the European

Union itself. In fact, the European Parliament rejected participation in Plan

944
Colombia . Among the reasons cited was Colombia’s “aerial crop-sprayingŽ,

which the Parliament said was causing “the forced displacement of families and

945
communitiesŽ and was “seriously affecting Colombia’s rich biodiversityŽ . The

Parliament therefore resolved that the European Union “must take the necessary

steps to secure an end to the large-scale use of chemical herbicidesŽ given “the

946
dangers of their use to human health and the environment alikeŽ . The

943CCM, Chap. 3, paras. 3.45-3.46 & n. 206-211. Ecuador provides the relevant extracts at ER,
Vol. IV, Annex 111. Guillermo Fernández-Soto, The Possible Illusion: Testimony on Colombian

Foreign Policy (Grupo Editorial Norma, 2004). ER, Vol. IV, Annex 111. As is readily apparent,
the cited parts do not, in fact, evidence support for aerial spraying, but rather for structural reform
to reduce inequality and instability, support for local human rights organizations, the
establishment of a peace promoting institution, and aid programs for people displaced by the

aerial fumigations and conflict. Ibid., p. 109.
944European Parliament, Resolution on Plan Colombia and Support for the Peace Process in

Colombia, EUR. PARL. DOC. B5-0087 (1 Feb. 2001). ER, Vol. IV, Annex 99.
945Ibid., para. D.

946Ibid., para. 15 (emphasis added). Although the EU does not support aerial spraying in

Colombia, it does support other strategies for reducing coca production. For example, although
the EU Drugs Action Plan for 2009-2012 contains a detailed policy for promoting alternative
development programmes to reduce the supply of illicit drugs, the Action Plan does not
recommend aerial eradication. European Union, “EU Drugs Action Plan for 2009-2012Ž, Official
Journal of the European Union, 2008/C 326/09 (20 Dec. 2008). Nor is there anything in the

earlier EU Drugs Action Plan for 2005-2008 regarding support for aerial eradication. European
Union, “EU Drugs Action Plan for 2005-2008Ž, Official Journal of the European Union, 2005/C
168/01 (8 July 2005). In that regard, the EU set as an “ObjectiveŽ for “International CooperationŽ
the goal to “[p]romote and implement the EU approach to alternative development . . . in

347European Parliament’s condemnation of aerial spraying in Colombia was later

repeated by the EU’s Commissioner for External Relations, Mr. Chris Patton,

who stated that the spraying programme is “not effective,Ž “affects other cropsŽ,

947
and “harms health and the environmentŽ . None of this is mentioned in the

Counter-Memorial, presumably because it defeats Colombia’s attempt to portray

the European Union as supportive of its spray programme.

4.101 In fact, the EU’s stance against aerial spraying in Colombia is consistent

with its approach to the aerial application of pesticides generally: that it is

dangerous for human health and the environment and should not be done except

in rare and tightly controlled circumstances. The policy against aerial spraying is

unambiguous. EU Directive 2009/128/EC requires that, subject to certain limited

and narrow exceptions, “Member States shall ensure that aerial spraying is

cooperation with third countries, taking into account human rights, human security and specific
framework conditionsŽ. European Union, “EU Drugs Action Plan for 2009-2012Ž, Official
Journal of the European Union, 2008/C 326/09, para. 17 (20 Dec. 2008).
947
“EU criticises Colombia on rightsŽ, BBC (London, 22 Jan. 2004). ER, Vol. IV, Annex 80.

348prohibitedŽ 948. The prohibition on aerial spraying applies equally to the spraying

of glyphosate-based herbicides and all other pesticides 949.

4.102 As explained by Dr. Reinhard Joas, the international expert on chemicals

regulation who served as technical advisor to the European Commission in

developing the Directive that banned aerial spraying, the prohibition represents

the consensus view on the minimum standard that all 27 EU Member States agree

is necessary to protect human health and to prevent environmental harm 950. The

EU consensus is the culmination of a lengthy consultation process, beginning in

2002, which involved extensive discussions among Member States, EU

regulatory bodies, scientific and technical experts, and representatives of affected

951
industries and other stakeholders . It was the subject of considerable

deliberation by expert working groups and studies that reviewed, among other

things, the human health and environmental impacts of different policy

948
This ban on aerial spraying is part of a broader EU policy “establishing a framework for
Community action to achieve the sustainable use of pesticidesŽ. European Parliament and the
Council of the European Union, Directive 2009/128/EC: Establishing a Framework for

Community Action to Achieve the Sustainable Use of Pesticides, Art. 9(1) (21 Oct. 2009). ER,
Vol. IV, Annex 109. Joas Report, op. cit., p. 3, 11-12. ER, Vol. II, Annex 8.
949
European Parliament and the Council of the European Union, Directive 2009/128/EC:
Establishing a Framework for Community Action to Achieve the Sustainable Use of Pesticides,
Art. 2(1), 3(10)(a) (21 Oct. 2009). ER, Vol. IV, Annex 109.
950
Joas Report, op. cit., pp. 3, 5, 16. ER, Vol. II, Annex 8.
951
Ibid, pp. 7-11. European Commission, Sustainable Use of Pesticides: Historical Background,
available athttp://ec.europa.eu/environment/ppps/history.htmast visited 16 Jan. 2011).

349 952
alternatives . This deliberative process resulted in the following determination

by the European Union:

“Aerial spraying of pesticides has the potential to cause significant
adverse impacts on human health and the environment, in

particular from spray drift. Therefore, aerial spraying should
generally be prohibited with derogations possible where it
represents clear advantages in terms of reduced impacts on human

health and the environment in comparison with other spraying
methods, or where there are no viable alternatives, provided that
953
the best available technology to reduce drift is usedŽ .

4.103 As explained in a report prepared by Dr. Joas, the Directive is based upon

the recognition of the following risks:

“Pesticides have an adverse impact on human health when the
degree of exposure exceeds the level considered to be safe. Both
direct exposure (workers and operators) and indirect exposure

(consumers, residents, and bystanders) are of concern in this
respect. Indirect risks, via spray drift or otherwise, can be

amplified for vulnerable population groups such as children, the
elderly, immunologically compromised people, and agricultural
workers who receive more intensive exposure.

952
Joas Report, op. cit., pp. 7-11. ER, Vol. II, Annex 8; see also Commission of European
Communities, The Impact Assessment of the Thematic Strategy on the Sustainable Use of
Pesticides, SEC(2006) 894 (12 July 2006) (hereinafter “Impact AssessmentŽ), p. 97-102. ER,
Vol. IV, Annex 103; BiPro, Assessing Economic Impacts of the Specific Measures to be Part of
the Thematic Strategy on the Sustainable Use of Pesticides, ENV.C.4/ETU/2003/0094R (Oct.
2004), available at ec.europa.eu/environment/ppps/pdf/bipro_ppp_final_report.pdf (last visited 23
Jan. 2011); Commission of European Communities, A Thematic Strategy on the Sustainable Use

of Pesticides, Technical Annex, SEC(2006) 895 Final (12 July 2006), pp. 4-5, 7. ER, Vol. IV,
Annex 104. The European Union notes that the Directive is “accompanied by a detailed impact
assessment and a legislative proposal to create an overall coherent and consistent policy
framework for pesticide useŽ. European Commission, EU Policy for a Sustainable Use of
Pesticides: The Story Behind the Strategy, pp. 7, 13 (2007). ER, Vol. IV, Annex 106.

953 European Parliament and the Council of the European Union, Directive 2009/128/EC:
Establishing a Framework for Community Action to Achieve the Sustainable Use of Pesticides,
Preamble, para. 14 (21 Oct. 2009). ER, Vol. IV, Annex 109. Joas Report, op. cit., p. 5. ER, Vol.

II, Annex 8.

350 . . .

Pesticides, which may enter the environment through direct

application, leaching, runͲoff or spray drift, have adverse impacts
by contaminating water, air and soil, damaging plants and wildlife,
954
and causing a loss of biodiversityŽ .

B. INDIVIDUAL S TATES

4.104 Many individual States have adopted regulations in regard to aerial

spraying of pesticides that are as fully protective of human health and the

954Joas Report, op. cit., pp. 5-6. ER, Vol. II, Annex 8. Derogation from this general rule is

allowed only in limited and narrow circumstances, when the following conditions are met: there
are no viable alternatives, or clear advantages in terms of health and environmental impacts; the
pesticides used are explicitly approved for aerial spraying following a specific assessment
addressing risks from aerial spraying; and the operator and responsible enterprise are properly
certified to conduct aerial spraying. Moreover, if the area to be sprayed is in close proximity to

areas open to the public, specific risk management measures are required to ensure that there are
no adverse effects on the health of bystanders. The area to be sprayed must not be in close
proximity to residential areas. Further, aircraft must be equipped with best available technology
to reduce spray drift. Parliament and the Council of the European Union, Directive 2009/128/EC:
Establishing a Framework for Community Action to Achieve the Sustainable Use of Pesticides,

Art. 9(2)(a)-(f) (21 Oct. 2009). ER, Vol. IV, Annex 109; see also Joas Report, op. cit., p. 11. ER,
Vol. II, Annex 8. The burden is on the applicator to demonstrate compliance with the above
conditions, in order to receive approval to conduct aerial spraying from the relevant regulatory
authority. Parliament and the Council of the European Union, Directive 2009/128/EC:
Establishing a Framework for Community Action to Achieve the Sustainable Use of Pesticides,

Art. 9(4) (21 Oct. 2009). ER, Vol. IV, Annex 109; see also Joas Report, op. cit., p. 12. ER, Vol.
II, Annex 8. In the rare cases where approvals to conduct aerial spraying are granted, important
notification and monitoring requirements must be adhered to: the approval to conduct aerial
spraying must contain measures necessary for warning residents and bystanders in due time and to

protect the environment in the vicinity of the area sprayed; national authorities must keep records
of requests and approvals including relevant information such as the area to be sprayed, the
provisional day and time of spraying, and the type of pesticide used; and monitoring must be
conducted to ensure compliance with the above conditions (e.g. no adverse effects on bystanders).
Parliament and the Council of the European Union, Directive 2009/128/EC: Establishing a

Framework for Community Action to Achieve the Sustainable Use of Pesticides, Art. 9(3), (4), (5)
(21 Oct. 2009). ER, Vol. IV, Annex 109; see also Joas Report, op. cit., pp. 11-12. ER, Vol. II,
Annex 8. Dr. Joas concludes that “[b]ased on the information provided by Colombia, its aerial
spraying program does not fulfil several of the conditions required to obtain an exceptional permit
under the EU Directive. In light of the risk-prevention rationale of Directive 2009/128/EC and its

general ban on aerial spraying, the aerial spraying program to eradicate coca crops in Colombia
would not be authorized in the EUŽ. Joas Report, op. cit., p. 16. ER, Vol. II, Annex 8

351environment as the European Union’s. Even prior to EU Directive 2009/128/EC,

some European States, including Estonia and Slovenia, instituted a total ban on

955
aerial spraying with no possibility for exceptions . Others permit spraying only

in extremely limited circumstances. For example, as reported by the

Organization for Economic Co-operation and Development, the regulations in

Denmark and Switzerland are so restrictive that aerial spraying “seldomŽ

956
occurs . In France and Italy, aerial spraying is banned as a general rule, with

957
permits issued only in exceptional cases . In Finland and Sweden, aerial

958
spraying is allowed only in what the OECD describes as “exceptional casesŽ .

In fact, Sweden has authorized only two aerial spraying operations in the last 20

years 959.

955Republic of Estonia, Plant Protection Products Act, entered into force 1 May 2004, amended

July 1, 2008, Art. 78(4). ER, Vol. III, Annex 20; Republic of Slovenia, Act on Plant Protection
Products, Art. 8 (9 Sept. 2004). ER, Vol. III, Annex 16; see also Impact Assessment, op. cit., p.
99. ER, Vol. IV, Annex 103. Aerial spraying is also banned in parts of Austria. Austrian
Federated State of Vorarlberg, Ordinance on Plant Protection Products, LGB1.Nr. 18/2008, § 1(1)

(2008). ER, Vol. III, Annex 21.
956
Organization for Economic Co-operation and Development (OECD), Activities to Reduce
Pesticide Risks in OECD and Selected FAO Countries, Part I: Summary Report,
OCDE/GD(96)121, p. 44 (1996). ER, Vol. IV, Annex 96.
957
Italian Republic, Legislative Decree No. 194, Art. 5(22)(b) (17 Mar. 1995). ER, Vol. III,
Annex 9; French Republic, Code rural et de la pêche maritime, Article L253-3, p. 32 (2010). ER,
Vol. III, Annex 24.

958Organization for Economic Co-Operation and Development (OECD), Activities to Reduce
Pesticide Risks in OECD and Selected FAO Countries, Part I: Summary Report,

OCDE/GD(96)121, p. 44 (1996). ER, Vol. IV, Annex 96; Sweden, Environmental Code 808,
Chap. 14, § 18 (last amended 2009) (1998). ER, Vol. III, Annex 11.
959
Organization for Economic Co-Operation and Development (OECD), Joint Meeting of the
Chemicals Committee and The Working Party on Chemicals, Pesticides and Biotechnology,
Report of the OECD Pesticide Risk Reduction Steering Group: The Second Risk Reduction

Survey, ENV/JM/MONO (2006) 14, p. 103 (19 July 2006). ER, Vol. IV, Annex 105.

3524.105 Numerous States that allow aerial spraying require advance warning to

nearby residents and resource managers prior to the spraying. For example, in the

United Kingdom, where regulations require that “all reasonable precautionsŽ be

taken to prevent spray drift, notice must be given “well beforeŽ the pesticide is

applied, and “certainly not after the minimum consultation period set by lawŽ 960.

In Nova Scotia, Canada, aerial applicators must notify local residents and

businesses at least 30 days before spraying, and post signs on access roads 30

961
days prior to spraying . Unlike Colombia, these States regulate aerial spraying

in a manner that is consistent with the UN FAO Guidelines, which explain that:

“Members of the public, not directly involved with the spray

operation, may also be affected by an aerial pesticide application
so the contractor/farmer may have a mandatory obligation to issue

‘prior warnings’ to any person or organisation that might be
affected or concerned. Warnings must be given in ample time to
beekeepers, owners of adjacent crops, livestock owners and those
962
responsible for nearby environmentally sensitive sitesŽ .

960
United Kingdom, Department for Environment, Food and Rural Affairs, Code of Practice For
Using Plant Protection Products, p. 31, 144 (2006). ER, Vol. III, Annex 17. UK regulations
require that the following information be furnished when preparing for aerial spraying: name,
address, and phone number of the person applying the pesticide; name of the pesticides intended
for use and their active ingredients; date and time of intended spraying; and confirmation that the

same details were provided to the Chief Environmental Health Officer for the district. Ibid., p.
144. In France, aerial spraying operations conducted in locations frequently used by people must
be noticed well in advance. French Republic, Decree On the Use of Products Mentioned in
Article L.253-1 of Rural Code, p. 33 (5 Mar. 2004). ER, Vol. III, Annex 14.

961Nova Scotia Environment and Labour, Media Backgrounder: Herbicide Management, pp. 1-2
(July 2007). ER, Vol. III, Annex 19.

962Food and Agriculture Organization of the United Nations, Guidelines on Good Practice for
Aerial Application of Pesticides, p. 21 (2001). ER, Vol. IV, Annex 98.

3534.106 No such warnings have ever been given to Ecuadorian nationals in areas

affected by Colombia’s spray programme.

4.107 States that allow aerial spraying impose strict regulations in regard to

operational requirements. Regarding droplet size, the United Kingdom requires

that the “coarsest appropriate spray qualityŽ be used 963. Colombia’s programme

could not meet this standard because, as discussed above, its own hired experts

964
classify the droplet size as “fine to very fineŽ . Colombia’s droplets would not

be permitted in Costa Rica either, where aerial spraying regulations require the

average droplet size of the spray mixture to be “between 200 … 300 microns in

order to minimize drift due to drops with a slower terminal velocity and greater

965
potential for evaporationŽ . As indicated above, the median droplet size in

Colombia is much smaller: 128 microns 966.

4.108 Height of spray release is also subject to strict limitations. In Costa Rica,

spray planes may not release chemicals more than 5 metres above the crop

canopy 967; in the Netherlands, spraying is prohibited more than 4 metres above

963United Kingdom, Department for Environment, Food and Rural Affairs, Code of Practice For
Using Plant Protection Products, § 4.7.4 (2006). ER, Vol. III, Annex 17.

964Hewitt et al, 2009, op. cit., p. 921. CCM, Vol. III, Annex 131-B.

965Costa Rica, Executive Decree No. 34202-MAG-S-MINAE-MOPT-G-MSP, Art. 1(c) (21 May
2007). ER, Vol. III, Annex 18.

966Hewitt et al., 2009, op. cit., p. 921. CCM, Vol. III, Annex 131-B.
967
Costa Rica, Executive Decree No. 34202-MAG-S-MINAE-MOPT-G-MSP, Art. 1(b) (21 May
2007). ER, Vol. III, Annex 18.

354 968 969
crops . In contrast, Colombia’s EMP allows spraying at 50 metres . As

shown in Chapter 2, even this dangerously high limit has been violated by

Colombia’s spray planes on over 16,143 spray flights along or near the border

with Ecuador 970.

4.109 Nor does Colombia’s programme meet the meteorological requirements

imposed by other States in regard to aerial spraying. Colombia permits spraying

971
in weather as warm as 35°C . In contrast, the Netherlands forbids spraying

when the temperature rises above 25°C … a 10°C difference … to avoid the greater

risks of spray drift at elevated temperatures 97. The Colombian aerial spraying

programme is also incompatible with the law in the United Kingdom, which bars

spraying when the temperature is higher than 30°C because, according to the

Department for Environment, Food and Rural Affairs, “rising air currents may

carry spray droplets and vapour in an unexpected wayŽ 973. In Costa Rica, a

968Organization for Economic Co-Operation and Development (OECD), Joint Meeting of the

Chemicals Committee and The Working Party on Chemicals, Pesticides and Biotechnology,
Report of the OECD Pesticide Risk Reduction Steering Group: The Second Risk Reduction
Survey, ENV/JM/MONO (2006)14, p. 81 (19 July 2006). ER, Vol. IV, Annex 105.
969
Resolution No. 1054 of 30 September 2003 of the Ministry for the Environment of Colombia,
p. 173. CCM, Vol. II, Annex 50.

970See supra Chap. 2, para. 2.103.
971
Resolution No. 1054 of 30 September 2003 of the Ministry for the Environment of Colombia,
op. cit., p. 173. CCM, Vol. II, Annex 50.
972
Organization for Economic Co-Operation and Development (OECD), Joint Meeting of the
Chemicals Committee and The Working Party on Chemicals, Pesticides and Biotechnology,
Report of the OECD Pesticide Risk Reduction Steering Group: The Second Risk Reduction

Survey, ENV/JM/MONO (2006)14, p. 81 (19 July 2006). ER, Vol. IV, Annex 105.
973United Kingdom Department for Environment, Food and Rural Affairs, Code of Practice For

Using Plant Protection Products, p. 90 (2006). ER, Vol. III, Annex 17.

355tropical country where conditions are similar to Colombia, aerial spraying must

974
be suspended if the temperature exceeds 29ºC .

4.110 Differences between Colombia and the rest of the world exist with respect

to wind conditions as well. For example, in Australia, a minimum wind speed of

3 kilometres per hour is required 97. The Australian regulatory agency explains

that:

“A minimum speed of 3 km/hr is required because times of no

wind (essentially below 3 km/hr) often precede or accompany
periods of highly stable air and surface temperature inversion
conditions both of which can greatly increase spray drift risk.

Moreover, when wind resumes after periods of calm, its direction
is not predictable. Spraying only when there is at least some wind

ensures that wind direction is known (so that drift onto sensitive
areas can be avoided) and greatly reduces the likelihood of surface
temperature inversions forming during or shortly after
976
applicationŽ .

4.111 Similarly, aerial application guidance from the United Kingdom states that

“[t]he safest conditions in which to spray are when it is cool and humid with a

steady wind of 2 to 4 miles an hour or 3.2 to 6.5 kilometres an hour (light breeze)

977
blowing away from any sensitive areas or neighbours’ landŽ .

974Costa Rica, Executive Decree No. 34202-MAG-S-MINAE-MOPT-G-MSP, Art. 1(g)(2)-(3) (21

May 2007). ER, Vol. III, Annex 18.
975APVMA Operating Principles, op. cit., p. 21. ER, Vol. III, Annex 22.

976Ibid., p. 21.
977
United Kingdom Department for Environment, Food and Rural Affairs, Code of Practice For
Using Plant Protection Products, p. 89 (2006). ER, Vol. III, Annex 17. In Saskatchewan,
Canada, the regulators direct: “[d]o not spray under dead calm conditions in early morning, night,

3564.112 Unlike these and other jurisdictions, Colombia’s spray program has no

minimum threshold for wind speed. This is particularly dangerous because calm

wind conditions favour temperature inversions that produce greater spray drift

and off-target deposition 978.

4.113 The dangers inherent in aerial spraying … and thus the need for strict

regulation … are also recognized by courts across many jurisdictions. For

example, a 2009 decision by the U.S. Court of Appeals of Arizona found that

despite the use of modern technology, aerial spraying of pesticides remains an

inherently dangerous activity because “the risk of harm cannot be eliminated

through the exercise of reasonable careŽ 97. In holding the aerial applicator liable

for damage caused to an adjacent landowner’s property, the Arizona court found

that the risk of harm to nearby land, property and people could not be eliminated

through the use of advanced technologies such as “improved spray nozzles, new

computer-controlled release systems, use of GPS navigation systems and

inclusion of ‘thickening agents’ in spray solutionsŽ 980. The court also considered

the state’s strict regulation of aerial spraying as evidence of the inherent danger of

or late evening. These are often associated with temperature inversions and the combination of
these factors can result in long-distance spray drift (2 km or more)Ž. Government of
Saskatchewan, Ministry of Agriculture, 2010 Guide to Crop Protection, p. 12 (2010). ER, Vol.

III, Annex 25.
978Durham K. Giles, Ph.D., Spray Drift Modeling of Conditions of Application for Coca Crops in

Colombia, pp. 27-28, 42-44 (Jan. 2011). ER, Vol. II, Annex 2; Hansman & Mena Report, op. cit.,
p. 23, n.9. ER, Vol. II, Annex 1; supra Chap. 2, para. 2.152.
979
Pride of San Juan v. Pratt, 221 Ariz. 337, 338, 340 (Ct. App. 2009).
980Ibid., p. 340.

357the activity, explaining that “[t]he legislature regulates this activity in part to

avoid the serious potential harm that can be caused by pesticides and chemical

driftŽ, and that violation of the regulations can result in criminal penalties81.

4.114 Courts in other jurisdictions have reached the same conclusion. For

instance, in 2009 a court in Argentina granted a writ of amparo filed by the

citizens of Santa Fé, enjoining for six months the aerial spraying of pesticides,

including Roundup. The court found that aerial application caused adverse

982
consequences for public health and the environment . The decision was upheld

on appeal by the Second Chamber of the Court of Civil and Commercial Appeals

of Santa Fé 983. The appellate court affirmed that the use of agrochemicals such as

glyphosate could cause severe harm to the environment, to animals, and to the

health and quality of life of the population of Santa Fé, in violation of the law984.

981Ibid., p. 342, n. 8.

982“A Constitution Appeal Is Ordered In San Jorge: A Judge Recognizes the Risk of Glyphosate
FumigationsŽ, ETRE R IOSENTRE TODOS (Entre Rios, 13 Apr. 2009). ER, Vol. IV, Annex 86.

983Shane Romig, “Argentina Court Blocks Glyphosate Spraying Near Rural TownŽ,OW ONES

N EWSWIRES (21 Mar. 2010). ER, Vol. IV, Annex 91.
984
“Santa Fe: A Ruling In Favor of LifeŽENACE (4 Jan. 2010). ER, Vol. IV, Annex 88. In
May 2009, an environmentalist group petitioned Argentina’s Supreme Court, seeking a temporary
ban on the use of Roundup after reported high incidence of birth defects and carcinogenesis in

people living near rural areas having been sprayed with herbicides, and scientific evidence linking
genetic malformations in amphibians in those areas to glyphosate. “Weed Killer Kills Human
Cells: Study Intensifies Debate over ‘Inert’ IngredientsŽ, EMENTAL HEALTH NEWS (22
June 2009). ER, Vol. IV, Annex 87. Furthermore, the Municipality of Paraná has prohibited

fumigations with Roundup close to urban areas, after complaints of damaged crops and the death
of animals by local residents. The only application of herbicides allowed is manual fumigation
outside urban areas, after the processing of the corresponding permi“It Is Warned that
Fumigations Are Being Carried Out in Paraná Despite Them Being ProhibitedŽ, LOZ (9 Jan.

2010). ER, Vol. IV, Annex 89. And in San Pedro Peninsula, the local authorities prohibited the

358 Conclusion

4.115 Colombia’s aerial spraying programme is not only conducted in a manner

that is impermissible in countries around the world, it is executed in ways that are

impermissible even in Colombia. In sum, Colombia sprays huge swaths of

territory immediately adjacent to Ecuador with a toxic chemical herbicide without

ever having carried out an EIA to determine the spray’s impacts on human health

or the environment, in defiance of the demands of its Environment Ministry,

National Ombudsman, Comptroller General, and courts; it executes the aerial

spraying programme in a manner that flagrantly disregards the operational

requirements of its own EMP, which has the status of law and is intended to

prevent or minimize harm to human health and the environment; and it ignores

legally mandated requirements intended to avoid spray drift and associated harms

to health and the environment. These failures to exercise even a minimum

amount of diligence in carrying out what is an inherently dangerous activity all

but assure spray drift into Ecuador at toxic levels sufficient to harm the local

population, kill legitimate crops, and wreak havoc on the delicate natural

environment characteristic of the border region. In short, these facts destroy

Colombia’s claim that it satisfied its obligation of due diligence.

use of Roundup, invoking scientific uncertainty over the consequences of its application.
“Fumigations with Glyphosate Are Not Permitted on the PeninsulaŽ (10 Feb. 2010). ER, Vol. IV,
Annex 90.

359 CHAPTER 5.

VIOLATION OF TERRITORIAL SOVEREIGNTY5.1 In its Memorial, Ecuador showed how the adverse effects of the use of

toxic herbicides by Colombia in the border area with Ecuador has violated

Ecuador’s territorial sovereignty. As noted by Ecuador, and not contradicted by

Colombia, respect for a State’s territorial sovereignty is a fundamental obligation

under general international law as well as the treaties applicable to the Parties in

985
this dispute, and it gives rise to a distinct cause of action in international law .

In this case, by failing to take steps to prevent the drift of toxic herbicides onto

the territory of Ecuador, Colombia has violated the duty to respect Ecuador’s

territorial sovereignty. As described in the Memorial and in more detail in

Chapters 2 through 4 of this Reply 986, Colombia has allowed this to occur by

failing to require a proper environmental assessment to be carried out in

accordance with national and international legal requirements (including but not

limited to the obligations to carry out (1) the transboundary environmental impact

assessment required by general international law 98, and (2) the assessment

required by Article 7(3) of the 1989 Indigenous and Tribal Peoples’ Convention

(ILO Convention No. 169 988), and by failing to exercise proper diligence in

authorising the spraying activities, namely by:

985Memorial of Ecuador, Vol. I, Chap. 7, paras. 7.3-7.8 (28 Apr. 2009) (hereinafter “EMŽ).

986EM, Chap. 8, Section C, “Colombia Failed to Take Adequate Precautionary Measures;Ž see
supra Chaps. 2-4.

987See infra Chap. 6; Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay),
Judgment, 2010, pp. 60-61, paras. 203-206.

988See infra Chap. 7; ILO Convention No. 169 Concerning Indigenous and Tribal Peoples, Art.
7(3) (hereinafter “ILO Convention 169Ž).

363 989
▯ allowing the use of inappropriate chemicals ;

▯ failing to prevent planes from operating at a speed and height that
will prevent spray drift 990;

991
▯ permitting inappropriate aircraft to be utilised ;

▯ failing to prevent small droplet sizes from being sprayed 992;

993
▯ allowing night spraying ;

▯ paying insufficient attention to climatic temperatures and wind
conditions 994; and

▯ permitting the herbicide spray to be applied at an excessive
application rate 995.

Colombia does not claim any right to allow overflights of the territory of

Ecuador; nevertheless, there is evidence that at least some such flights have

occurred in a manner not authorised by Ecuador, in violation of Ecuadorian

996
sovereignty .

5.2 In its Counter-Memorial, Colombia has chosen to avoid engaging with

Ecuador’s arguments. It has invoked a well-trodden path frequently adopted by a

Respondent, namely to rewrite the arguments made by the Applicant and respond

989
See supra Chap. 2, paras. 2.17-2.64.
990See supra Chap. 2, paras. 2.88-2.107.

991See supra Chap. 2, paras. 2.115-2.122.

992See supra Chap. 2, paras. 2.135-2.138.
993
See supra Chap. 2, paras. 2.145-2.149.
994
See supra Chap. 2, paras. 2.151-2.154.
995
See supra Chap. 2, paras. 2.140-2.143.
996See supra Chap. 2, para. 2.163, n320 . See also R. John Hansman, Ph.D. & Carlos F. Mena,

Ph.D., Analysis of Aerial Eradication Spray Events in the Vicinity of the Border Between
Colombia and Ecuador from 2000 to 2008, p. 13 (Jan. 2011). ER, Vol. II, Annex 1.

364to arguments that have not actually been made. Thus, Colombia has recast

Ecuador’s claim as being that “no detectable or measurable trace of spray mix, no

997
matter how small, should be allowed to enter Ecuador’s . . . territoryŽ . There is

no citation to any such assertion, which is not Ecuador’s position. As shown in

Chapters 2 and 3 of the Reply, the evidence of substantial harm is well-

established.

5.3 As noted in Chapter 3, Colombia has ignored the harm caused to its own

territory998, despite the reports of extensive harm there. Colombia’s Office of the

Ombudsman has concluded that the programme had affected “thousands of

ColombiansŽ and had “high socio-economic and environmental costŽ 999,

identifying damage to crops, animals and people, and raising concerns about “the

1000
ruin of their household financesŽ and the “severe food security problemŽ .

Departmental and local authorities have also complained of the severe damage

caused in Colombia: in 2002 the Governor of Putumayo Department, adjacent to

Ecuador, denounced the aerial spraying, stating that the damage caused to legal

997Counter-Memorial of Colombia, Vol. I, Chap. 8, para. 8.35 (29 Mar. 2009) (hereinafter
“CCMŽ).

998CCM, Chap. 1, para. 1.34(1).
999
Republic of Colombia, Office of Ombudsman, The Implementation of the Strategy of Aerial
Eradication of Illicit Crops With Chemicals, From a Constitutional Perspective, p. 1 (Apr. 2003).
ER, Vol. V, Annex 146.

1000Republic of Colombia, Office of the Ombudsman, Ombudsman Resolution No. 4, p. 4 (12
Feb. 2001). EM, Vol. II, Annex 92. See also EM, Chap. 5, paras. 5.106-5.108.

365crops by the program was “causing an economic crisis and displacement of the

1001
populationŽ .

5.4 This directly contradicts Colombia’s claim of limited effects 1002.

Colombia’s Counter-Memorial confirms that between 2002 and 2008 some 117

persons were compensated, thereby admitting that some harm has occurred 1003.

Yet Colombia has ignored the thousands of complaints of property damage which

are awaiting compensation. Indeed, Colombia’s Comptroller General reports that

4,500 complaints were received by the Ministry of Justice in 2002 alone 1004.

Similarly, in 2001 the Colombian Office of the Ombudsman reported receiving

1005
6,553 complaints .

5.5 As described in Chapter 3, the harm in Colombia has been extensive. To

cite but a few examples: in 2000, the mayor of Puerto Guzmán reported that at

1006
least seven people had died as a consequence of aerial spraying in that area ; in

1001
“Putumayo: Governor Denounces FumigationsŽ, H OY (Quito, 29 July 2007). ER, Vol. IV,
Annex 85.
1002
CCM, Chap. 1, para. 1.34(1).
1003
CCM, Chap. 4, para. 4.22. See also ibid., Chap. 1, para.1.34(1).
1004
Comptroller General of the Republic of Colombia, Plan Colombia: Fifth Evaluation Report
(Dec. 2004), p. 36. ER, Vol. V, Annex 152.
1005
Republic of Colombia, Office of the Ombudsman, National Ombudsman Resolution No. 26,
Human Rights and International Humanitarian Law in the Context of Armed Conflict and
Fumigation of the Coca Crops in the Province of Putumayo (9 Oct. 2002), p. 24. ER, Vol. V,
Annex 145. See also supra Chap. 3, paras. 3.170-3.173.

1006“Mayor Denounces FumigationsŽ, E L U NIVERSO (Guayaquil, 22 Aug. 2000). ER, Vol. IV,

Annex 56.

3662001, the Colombian Comptroller-General reported that spraying had caused

“nausea, vomiting, diarrhea, and burning of the eyes, skin and throatŽ, all

symptoms that “coincide with information in the literature and are consistent with

the position of the Ministry of HealthŽ 1007; also in 2001, the Putumayo

Department of Health recorded a sharp increase in acute respiratory infections,

diarrhea, dermatitis, and skin infections following sprayings just 20 kilometres

from Ecuador 100; and in 2003, the Colombian Office of the Ombudsman reported

an “increase in medical visits related to skin problems, gastrointestinal,

respiratory infections and conjunctivitis after the fumigationsŽ, particularly with

“childrenŽ who, due to their “fragile stateŽ, have had their “fundamental right to

life and health . . . affectedŽ00. Thus, Colombia’s claim that “[n]o substantiated

complaint of death or serious harm to human health has been presented in

1010
Colombia since the inception of the programŽ disregards the findings of its

1011
own public officials . That harm, as noted in Chapter 3, has been substantiated

1007
Comptroller General of the Republic of Colombia, Plan Colombia: Second Evaluation Report,
p. 43…44 (10 Dec. 2001). EM, Vol. II, Annex 94.
1008
EM, Chap. V, para. 5.103.
1009
Republic of Colombia, Office of Ombudsman, The Implementation of the Strategy of Aerial
Eradication of Illicit Crops With Chemicals, From a Constitutional Perspective, p. 6 (Apr. 2003).
ER, Vol. V, Annex 146.

101CCM, Chap. 1, para. 1.34(1).

1011It also disregards the numerous independent accounts that confirm the extensive damage

caused by the aerial spraying. See, e.g., “The Void of the FumigationsŽ, EO (Bogotá, 28
May 2000) (“[i]n the countryside, reporters from this newspaper confirmed the destruction of
plantain plants and corn, as well as expanses of virgin forestŽ). ER, Vol. IV, Annex 55. Larry
Rohter, “To Colombians, Drug War is Toxic EnemyŽ, TE NEW YORK TIMES (New York, 1 May

2000) (describing damage to a remote Yanacona Indian village and noting that “dozensŽ of
residents became ill and numerous farms were damaged). ER, Vol. IV, Annex 54; Juan Forero,

367by international observers, including the UN Special Rapporteur on the situation

of human rights and fundamental freedoms of indigenous people, who, in 2004,

noted the “adverse effects of indiscriminate spraying, including environmental

damage to the topsoil, fauna, flora and water, the destruction of subsistence crops

1012
and direct damage to human healthŽ .

5.6 Colombia seeks to elide Ecuador’s claims of violation of territorial

sovereignty into a renewed discussion of the legal issues relating to

transboundary environmental harm, a matter that Ecuador has addressed

separately, in Chapter 8 of its Memorial and in Chapter 6 of this Reply. The

evidence shows that the amount of herbicide that is transported into Ecuador’s

territory as a result of Colombia’s activity is significant and gives rise to adverse

“No Crops Spared in Colombia's Coca WarŽ,HEN EW Y ORK TIMES (New York, 31 Jan. 2001).

ER, Vol. IV, Annex 60; “Fumigation DisputeŽ, EEMPO (Bogotá, 22 July 2001). ER, Vol. IV,
Annex 62; “Colombia Denounces Indiscriminate Spraying in PutumayoŽ, EMERCIO (Quito,
10 Jan. 2002). ER, Vol. IV, Annex 64; “Another Controversy Over FumigationŽ, ERCIO
(Quito, 9 July 2002). ER, Vol. IV, Annex 67; “Requesting an End to FumigatiLTIEMPO

(Bogotá, 10 Oct. 2002). ER, Vol. IV, Annex 72; “Fumigations Cause Concern in PutumLyoŽ, E
COMERCIO (Quito, 10 Nov. 2002). ER, Vol. IV, Annex 73; “Glyphosate RainŽ,LETIEMPO
(Bogotá, 25 Feb. 2003). ER, Vol. IV, Annex 74; “Between Faith and FumigationsŽ, EO

(Bogotá, 10 May 2002). ER, Vol. IV, Annex 66; “Spray Program on Indigenous Territories Is
StrugglingŽ, ETIEMPO (Bogotá, 28 Apr. 2003). ER, Vol. IV, Annex 75.
1012
Report of the Special Rapporteur on the Situation of Human Rights and Fundamental
Freedoms of Indigenous People, Mr. Rodolfo Stavenhagen, Mission to Colombia U.N. Doc.

E/CN.4/2005/88/Add.2, para. 50 (10 Nov. 2004). ER, Vol. IV, Annex 102; see also ibid., para.
82. ER, Vol. IV, Annex 102. Mr. Stavenhagen reported that the Awa had been particularly
affected: “The Awá community in Nariño has informed the Special Rapporteur of various kinds of

damage caused over the last three years to large tracts of rainforest in several areas of the
municipalities of Tumaco and Barbacoas, as a result of spraying with glyphosate. The greatest
damage was done, they say, to sources of fresh water, killing native fish and affecting human
health, causing aching bones, vomiting, dizziness, fever and other ailments, particularly among

children.Ž Ibid., para. 51. ER, Vol. IV, Annex 102.

368 1013
effects . Such adverse effects include the inducing of fear and apprehension,

and on occasion even panic, in sectors of the Ecuadorian population, just as fear

and apprehension and panic are induced in elements of the Colombian

population 1014(and also in the generation of a very large number of compensation

1015
claims in Colombia) . It is these consequences that contribute to the violation

by Colombia of Ecuador’s sovereignty: in accordance with general international

law, and the 1988 Narcotics Convention, Colombia has an obligation to respect

the territorial integrity and sovereignty of Ecuador, and it has failed to do so. The

deposit of toxic substances is not insignificant, giving rise to a distinct violation

of Colombia’s international legal obligations, consistent with the approach taken

in numerous judgments of the Court. Colombia has made no effort to provide

any response to those authorities. It has not sought to distinguish them or argue

that they were wrongly decided. It simply chooses to ignore them.

5.7 There is no need to recall in great detail the factual and legal arguments

made by Ecuador in its Memorial: these are largely uncontested by Colombia.

This chapter focuses on the two issues raised by Colombia. The first concerns

Colombia’s response to the very notion that an obligation to respect sovereignty

1013See supra Chap. 2, paras. 2.199-2.202; Durham K. Giles, Ph.D., Spray Drift Modeling of

Conditions of Application for Coca Crops in Colombia, pp. 47-48 (Jan. 2011). ER, Vol. II,
Annex 2; Stephen C. Weller, Ph.D., Glyphosate-Based Herbicides and Potential for Damage to
Non-Target Plants Under Conditions of Application in Colombia, pp. 17-21, 25 (Jan. 2011). ER,
Vol. II, Annex 3.
1014
See, e.g., supra Chap. 3, paras. 3.18, 3.21, 3.158-3.166.
1015
See supra Chap. 3, paras. 3.170-3.173.

369adds in any way to the obligation to prevent transboundary harm; the second

concerns Colombia’s arguments on unauthorised overflights by Colombian

aircraft of Ecuadorian territory.

5.8 As recognised by this Court in the Corfu Channel case, “[b]etween

independent States, respect for territorial sovereignty is an essential foundation of

international relationsŽ 1016. This obligation, and its corresponding duty to not

intervene in the internal and external affairs of other States, is part and parcel of

customary international law 1017. It has been recognized in numerous international

instruments, such as General Assembly Resolution 2625 (XXV) on the

Declaration of Principles of International Law concerning Friendly Relations and

Co-operation among States in accordance with the Charter of the United

1018
Nations , and the Montevideo Convention on the Rights and Duties of

1019
States .

1016Corfu Channel (United Kingdom v. Albania), Judgment, I.C.J. Reports 1949, p. 35.
1017
Military and Paramilitary Activities in and against Nicaragua (Nicaragua v. United States of
America), Judgment, I.C.J. Reports 1986, p. 14, paras. 202, 292 (5).
1018
United Nations General Assembly Resolution 2625 (XXV) Declaration of Principles of
International Law concerning Friendly Relations and Cooperation among States in accordance
with the Charter of the United Nations (24 Oct. 1970).

1019Montevideo Convention on the Rights and Duties of States, Art. 8 (26 Dec. 1933), entered
into force 26 Dec. 1934, OAS Treaty Series No. 37, available at

http://www.oas.org/juridico/english/sigs/a-40.html. Both Ecuador and Colombia are parties to the
Convention.

3705.9 Of particular relevance to this case is Article 2 of the 1988 Narcotics

Convention, which provides:

“2. The Parties shall carry out their obligations under this

Convention in a manner consistent with the principles of sovereign
equality and territorial integrity of States and that of non-
1020
intervention in the domestic affairs of other StatesŽ .

Colombia argues in its Counter-Memorial that the principles stated in Article 2 of

this Convention “do not have the effect of imposing any additional substantive

obligations on the States Parties to the 1988 ConventionŽ 102. Implicitly,

therefore, Colombia recognizes that the obligation to respect Ecuador’s territorial

integrity arises under general international law, and that Article 2(2) merely

reflects and underscores that legal obligation. In short, general international law

and Article 2 of the 1988 Narcotics Convention impose upon Colombia a clear

obligation to respect the principles of territorial integrity and non-intervention in

respect of Ecuador. By causing and allowing toxic sprays to cross into the

territory of Ecuador, Colombia is violating these obligations, which exist under

conventional and customary law. Colombia accepts that exposure to glyphosate

has a “toxicity to humans and animalsŽ, even if it is asserted to be “minimalŽ, and

1022
that it causes “minor irritationŽ (for the avoidance of doubt, Ecuador does not

accept as a matter of international law that even the most minor of “irritationsŽ is

1020United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic
Substances, Art. 2, U.N. Doc. E/CONF.82/15 (20 Dec. 1988), reprinted in 28 I.L.M. 493 (1989)
(hereinafter “1988 Narcotics ConventionŽ). EM, Vol. II, Annex 3.

1021CCM, Chap. 8, para. 8.33.
1022
CCM, Chap. 8, para. 8.39.

371acceptable, and actions giving rise to such “irritationsŽ constitute harm that is to

be prohibited). Ecuador’s right to territorial sovereignty encompasses a right that

its people … as well as animals found on its territory … should not be subject to

exposure to such “toxicityŽ or “irritationŽ, the consequences are neither tolerable

nor insignificant, and it cannot be the position of Colombia that it would tolerate

such consequences in a reverse scenario. This is all the more so having regard to

the consequences of the herbicide on plant life and on biodiversity, a matter on

which Colombia retains a conspicuous silence.

5.10 The obligation to respect a State’s territorial sovereignty involves not only

the duty for other States to not intervene in the internal affairs of other States, but

the exclusive right to display the activities of a State. This was recognised in the

1023
arbitral decision in the Island of Palmas case , and by this Court in the case

1024
concerning Military and Paramilitary Activities in and against Nicaragua .

The Court, when addressing the content of the principle of non-intervention,

noted:

“in view of the generally accepted formulations, the principle

forbids all States or groups of States to intervene directly or
indirectly in internal or external affairs of other States. A
prohibited intervention must accordingly be one bearing on

matters in which each State is permitted, by the principle of State
sovereignty, to decide freely. One of these is the choice of a

1023Island of Palmas Case (Netherlands v. United States of America), Reports of International
Arbitral Awards, Vol. II, p. 839 (1928).
1024
Military and Paramilitary Activities (Nicaragua v. United States), Judgment, I.C.J. Reports
1986, p. 108, para. 205.

372 political, economic, social and cultural system, and the
1025
formulation of foreign policyŽ .

To this formulation may be added the violation of environmental and health

standards that Ecuador has adopted, as well as international environmental norms

and those relating to the protection of fundamental human rights and the rights of

indigenous peoples, including those set forth in ILO Convention No. 169. In

addition, Ecuador invokes the right of all its citizens and all persons living within

its territory not to be subject to exposure to toxic chemicals that cause any degree

of harm.

5.11 The exercise of sovereignty by Ecuador inevitably includes the right to

exercise permanent sovereignty over the natural resources that are to be found

within its territory. As Ecuador made clear in its Memorial, the principle of

permanent sovereignty over natural resources is recognised in numerous

1026
instruments of international law and has been confirmed by the Court to be “a

1027
principle of customary international lawŽ .

5.12 The principle of permanent sovereignty over natural resources has

received special recognition in the context of environmental policy through its

formulation provided for the first time in Principle 21 of the 1972 Stockholm

102Ibid.

102EM, Chap. 7, para. 7.14.
1027
Armed Activities on the Territory of the Congo (Democratic Republic of the Congo v.
Uganda), Judgment, I.C.J. Reports 2005, p. 251, para. 244.

373Declaration on the Human Environment, which asserts that States have “the

sovereign right to exploit their own resources pursuant to their own

1028
environmental policiesŽ . The principle is also reflected in Article 7(4) of ILO

Convention No. 169, which provides that “Governments shall take measures, in

co-operation with the peoples concerned, to protect and preserve the environment

1029
of the territories they inhabitŽ . Principle 21 establishes as the sole limitation

of this sovereign right the duty to respect the principles of international law and to

not cause damage to the environment of other States or of areas beyond the limits

of national jurisdiction 1030. The 1992 Convention on Biological Diversity,

binding upon Ecuador and Colombia, incorporates Principle 21 of the Stockholm

1031
Declaration as a legal obligation of States in its Article 3 . Colombia does not

dispute the content or legal status of these obligations.

5.13 In the same manner that States have the right to freely determine their

“choice of a political, economic, social and cultural system, and the formulation

1032
of foreign policyŽ , they have the right to freely determine their own standards

for the protection of the environment and the well-being of their population.

1028Declaration of the United Nations Conference on the Human Environment, U.N. Doc.
A/CONF/48/14/REV.1 (1972) (hereinafter “Stockholm DeclarationŽ).

1029ILO Convention 169, Art. 7(4).

1030Stockholm Declaration, Principle 21.
1031
Convention on Biological Diversity, Art. 3 (22 May 1992), entered into force on 29 Dec.
1993. Colombia and Ecuador are parties to this Convention.
1032
Military and Paramilitary Activities (Nicaragua v. United States), Judgment, I.C.J. Reports
1986, p. 108, para. 205.

374Ecuador is entitled as a matter of domestic law to prohibit aerial spraying of

pesticides in the manner now engaged in by Colombia, and it is entitled to hold

Colombia to a standard that prohibits that State from allowing activities which

will lead to the transboundary movement of pesticides from Colombia to

Ecuador, in circumstances that even Colombia accepts will expose the people to

toxic risks and consequent “irritationŽ. In the same manner that Ecuador has the

sovereign right to close its ports or its airspace if it so wishes, with due regard to

international law, a State has the sovereign right to apply higher standards of

environmental protection than its neighbouring countries and to be respected, free

of foreign intervention, in doing so.

5.14 Colombia seeks to trivialise Ecuador’s claim by portraying it as though

Ecuador were demanding the absolute freedom of its territory from any trace of

Colombian activity. This is not Ecuador’s case. As Colombia is well aware,

Ecuador’s action is prompted by the severity of the environmental and human

consequences suffered in its territory as a result of Colombia’s uncontrolled … or

inadequately controlled … activities. It is inappropriate for Colombia to invoke a

need to reconcile “conflicting interestsŽ by reference to considerations of

1033
“reasonableness and proportionalityŽ : Colombia has failed to respect the basic

principles of international cooperation and of due diligence with respect to

transboundary harm, as explained by Ecuador in Chapter 8 of its Memorial and

103CCM, Chap. 8, para. 8.35.

375Chapter 6 of its Reply. It is equally inappropriate for Colombia to apply its

internal laws and standards to the territory of Ecuador, or to accept that as a

matter of international law it is entitled to do so. If Colombia had provided

adequate information, if it had cooperated with Ecuador, if it had carried out a

proper transboundary environmental impact assessment (and a proper and

complete “Environmental Management PlanŽ), and if it had properly regulated

the spray flights (including, inter alia, by gathering and sharing proper flight data

and carrying out a proper and complete spray drift study), then it might be in a

better position to argue that it had not violated Ecuador’s sovereignty. But having

done none of these things, and having manifestly failed to provide an accurate

and complete account of its acts, Colombia has disabled itself from claiming that

its actions have respected Ecuador’s sovereignty.

5.15 Finally, in its Counter-Memorial, Colombia dismisses Ecuador’s claim of

violation of its territorial sovereignty as a result of transboundary harm to the

Ecuadorian people and environment by claiming that “[t]o describe the causing of

1034
such harm as a breach of sovereignty does nothing to further the analysisŽ .

For the reasons set out above, this is wrong: the duty to respect a State’s

sovereignty is a fundamental obligation of international law, and it is independent

from other international obligations and provides grounds for a specific cause of

103CCM, Chap. 8, para. 8.32.

376action in international law 1035. Its violation does not depend on proving the same

degree of harm as, for example, violations of fundamental human rights or

damage to the environment. Even if Colombia’s dismissive portrayal of the

spray’s harms were true, which they are not, minor irritations caused to a large

number of people in Ecuador, over extended periods of time and as a

consequence of the use of a pesticide that is prohibited from being used by aerial

spraying around the world, gives rise to a violation of a State’s sovereignty. The

Court has recognised this principle in numerous judgments, declaring the

violation of sovereignty to be a distinct violation of international law, even when

it is a consequence of acts which result in the violation of other or additional

international obligations 103.

5.16 Considering the brevity with which Colombia addresses in its Counter-

Memorial Ecuador’s claims of violation of its territorial sovereignty and integrity,

it has presented a notably lengthy response to Ecuador’s reference to the pertinent

allegations made by Australia and New Zealand in the Nuclear Tests cases.

Colombia compares the situation of transboundary harm resulting from French

nuclear tests with that arising from the transboundary movement of pesticides in

the present case:

103EM, Chap. 7, para. 7.7.
1036
See, e.g., Armed Activities on the Territory of the Congo (Democratic Republic of the Congo
v. Uganda), Judgment, I.C.J. Reports 2005, p. 227, para. 165.

377 “In any event the Nuclear Tests cases concerned long-distance
radioactive fallout from atmospheric nuclear testing, a very
different proposition than incidental and marginal spray drift from

lawful activities in the fight against illicit drugs. There are many
uncertainties about the effects of radioactivity, and no ‘safe’ dose.
The radioactive elements concerned have a long half-life and the

illnesses they appear to cause (the chain of causation is
undetectable and unpreventable) are initially difficult to detect and
expensive to treatŽ1037.

Colombia seems to be arguing that allegations of a violation of sovereignty

causing greater environmental harm would be more capable of being sustained in

the circumstances of the Nuclear Tests cases than in those of the present dispute.

This misses the point. Colombia accepts that the intrusion into the territory of a

State of a harmful substance can and does give rise to a violation of the obligation

to respect the sovereignty of a State. That is the key point. The distinction

between the consequences of radionuclides and the spray’s pesticide mixture is

one of degree, if it is anything, but it is not one of principle. There are many

uncertainties about the effects of the pesticides used by Colombia, and that is

precisely why their use is strictly controlled and why aerial spraying of pesticides

is banned in the European Union and elsewhere. In these circumstances, by

allowing such pesticides to be transported into the territory of Ecuador, Colombia

is failing to respect Ecuador’s sovereignty.

5.17 Colombia does not dispute that overflight of Ecuadorian territory by

aircraft involved in the aerial spraying would, in the absence of a treaty or other

103CCM, Chap. 8, para. 8.39.

378consensual arrangement, violate the sovereignty of Ecuador. This is a concession

1038
that Ecuador accepts . Colombia argues, however, that Ecuador has not given

any “particularised examples of overflightŽ, and for this reason there has been no

1039
violation . Ecuador is now in a position to provide the particularised examples

that Colombia refers to: in Chapter 2, there is set out the aerial spraying incidents

giving rise to violations of Ecuadorian sovereignty 1040. Ecuador recognises that

the number of overflights is small, but that does not diminish the significance of

the issue of principle: having regard to the likelihood of further violations,

Ecuador considers that there is a need for the Court to make clear that Colombia

is under a strict duty to prevent any overflights of the territory of Ecuador that

have not been authorised.

1038
CCM, Chap. 8, para. 8.42.
1039CCM, Chap. 8, para. 8.43.

1040See supra Chap. 2, para. 2.163, n. 320.

379 CHAPTER 6.

VIOLATION OF INTERNATIONAL ENVIRONMENTAL LAW AND
RESPONSIBILITY FOR TRANSBOUNDARY HARM Section I. Introduction

6.1 In its Memorial, Ecuador set forth detailed arguments with respect to

Colombia’s violation of its international obligations on prevention of

transboundary harm, environmental impact assessment and cooperation, and the

need for a precautionary approach. In its Counter-Memorial, Colombia tries to

evade its responsibility for causing transboundary harm by portraying the spray

programme as harmless and benign. Ecuador reiterates the arguments it made in

the Memorial, and responds in this Reply to Colombia’s arguments. Chapter 2 of

this Reply shows that Colombia has misrepresented the toxicity of the glyphosate-

based formulations used in the aerial spray programme. Diplomatic

correspondence with Ecuador and official U.S. and Colombian reports reveal that

the spray mixture contained chemicals that Colombia omitted to refer to in its

description. Various formulations of glyphosate with quite different

characteristics have been used at various times, in combination with other

chemicals. Given Colombia’s failure to provide a complete account or

description, and the ensuing uncertainty, it is impossible for Ecuador or the Court

to assess fully the risks posed by the chemicals used in the spray. It is clear,

however, that the spray mixture is toxic and significantly harmful to humans.

The nature and scale of Colombia’s spraying, as shown in Chapter 2, magnifies

the problem for communities living near the border with Colombia.

3836.2 Colombia argues that Ecuador has not proved significant harm. Chapter 3

of this Reply sets out further evidence of harm to people, crops, water supplies,

natural resources and the environment … all in Ecuador … resulting from

Colombia’s aerial spraying programme 1041. That evidence need not be repeated

here: it shows that aerial spraying along the border caused significant harm in

Ecuador prior to 2007, when Colombia ceased spraying within a 10 kilometre

buffer zone, and that further harm could be caused in the future if spraying closer

to Ecuador were resumed.

6.3 In its Counter-Memorial, Colombia claims that it had, at most, an

obligation to conduct an environmental impact assessment under the terms of the

applicable Colombian law and to keep the situation under review 1042. It argues

that the aerial spraying programme was adopted and implemented with all due

diligence 1043. And it denies that it failed to cooperate with Ecuador in the

1044
implementation of the aerial spraying programme .

6.4 Ecuador disagrees. Its detailed response is set out in subsequent sections

of this Chapter. In summary:

1041
See supra Chap. 3, Section I.
1042
Counter-Memorial of Colombia, Vol. I, Chap. 8, paras. 8.89-8.90 (29 Mar. 2010) (hereinafter
“CCMŽ).
1043
Ibid., Chap. 8, para. 8.60.
1044Ibid., Chap. 8, paras. 8.105-8.112.

384 a. Given the risk of toxic herbicide drifting into Ecuador and causing

harm, there was a duty under international law to carry out a prior

environmental impact assessment of transboundary effects.

b. Colombia did not carry out such an assessment before the spraying

operation was initiated.

c. Colombia’s aerial spraying caused significant harm to people,

property and the environment in Ecuador and there remains a risk of

further harm if the spraying is resumed within 10 kilometres of the

border.

d. Given the large scale of the spraying operations, and the uncertain

composition and effects of the chemicals in use, a heightened duty of

due diligence is called for, requiring a precautionary approach to

prevention of harm.

e. Colombia failed to exercise due diligence in authorising and

supervising the spraying activities, inter alia, by:

▯ allowing the use of inappropriate chemicals 1045;

▯ failing to ensure that spray1046nes operate at a speed and height
that will prevent spray drift ;

104See supra Chap. 2, paras. 2.17-2.64.

104See supra Chap. 2, paras. 2.88-2.107.

385 1047
▯ permitting inappropriate aircraft to be utilised ;
1048
▯ allowing night spraying ;

▯ paying insufficient attention to meteorological conditions,
1049
including temperature, humidity and wind conditions ;

▯ permitting an excessive rate of application having regard to the
areas being sprayed 1050;

▯ failing to ensure compliance by spray planes with the
1051
Environmental Management Plan (“EMPŽ) ;

▯ failing to give warning when spray operations were scheduled to
take place in border areas 1052;

1053
▯ failing to monitor the harmful effects of spraying .

f. Colombia has not cooperated with Ecuador in good faith as required

by customary international law, the 1988 Narcotics Convention, and

the 1992 UN Convention on Biological Diversity. Specifically, it has

failed to:

▯ consult Ecuador before initiating the border spraying programme;

▯ notify Ecuador of the composition of the spray mixture and of

planned spraying operations;

▯ undertake joint monitoring of the impact of the spraying operation.

104See supra Chap. 2, paras. 2.115-2.122.
1048
See supra Chap. 2, paras. 2.145-2.149.
1049
See supra Chap. 2, paras. 2.151-2.154.
105See supra Chap. 2, paras. 2.140-2.143.

105See supra Chap. 2, paras. 2.67-.2.73.
1052
See supra Chap. 3, paras. 3.7, 3.99, 3.141; Memorial of Ecuador, Vol. I, Chap. 3, paras. 3.-3.3,
3.17, 3.21, 3.25, 3.46 (28 Apr. 2009) (hereinafter “EMŽ).
1053
See infra paras. 6.45-6.71.

386 g. Finally, Colombia has not answered the need for adequate

precautionary measures to deal with the ongoing risk of significant

harm to Ecuador should the spraying programme along the border ever

resume.

6.5 However expressed, the central point of this part of the case is clear and

unambiguous: Ecuador is entitled in international law to expect Colombia to carry

out its spraying programme in a manner which assesses all the risks to Ecuador

and takes all necessary steps to prevent avoidable transboundary harm from

occurring. In Ecuador’s submission that means no spraying in border areas in

circumstances where significant harm to Ecuador or its people, property or

environment is likely to result. Only since 2007, when Colombia stopped

spraying within 10 kilometres of the border, has the problem of herbicide

deposition in Ecuador been tackled effectively; as regards the future, Colombia’s

halt to the programme does not address past illegalities, with their continuing

consequences. This simple fact shows that it is possible for Colombia to carry

out its spraying programme without the need to spray in close proximity to the

border. What Ecuador seeks now is a binding obligation on Colombia not to

resume spraying within 10 kilometres of the border.

387 Section II. The Applicable Law

A. G ENERAL INTERNATIONAL LAW

6.6 Colombia has a particularly narrow and conservative view of the

applicable law. The Parties differ markedly on this issue. Ecuador’s views as set

out in the Memorial and in this Chapter are grounded in principle and established

practise. They adopt and apply the Judgment of this Court in the Pulp Mills

Case 105. The significance of that Judgment for the present case is addressed

below.

6.7 Colombia argues that international environmental law is mainly treaty-

based, and that “[s]uch customary international law rules as exist in relation to the

environment are of a general and residual characterŽ 105. It appears to deny the

existence of any relevant norms of customary international law apart from the

general duty of due diligence referred to in the Court’s Advisory Opinion on the

1056
Legality of the Threat or Use of Nuclear Weapons . Specifically, it disputes the

existence of a requirement to carry out a prior environmental impact assessment

as to transboundary effects, or to ensure that members of the public in Ecuador

1054
Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010.
1055
CCM, Chap. 8, para. 8.6.
1056
Advisory Opinion on the Legality of the Threat or Use of Nuclear Weapons, I.C.J. Reports
1996, pp. 241-242, para. 29.

388who are potentially affected by the spray are informed in advance 1057. It

discounts the articles of the International Law Commission (“ILCŽ) with respect

to prevention of transboundary harm, saying that they do not reflect customary

international law, and in any event, do not apply because the threshold criterion

1058
of a likelihood of significant harm is not met . It denies that the precautionary

1059
principle has more than “adjectivalŽ significance .

6.8 Ecuador’s arguments with respect to violation of the law on transboundary

1060
harm were fully elaborated in the Memorial . As shown later in this Chapter,

Ecuador’s case on environmental assessment requires the Court to do no more

1061
than apply the general law as set out in the Pulp Mills case . No treaty

applicable between the Parties is required to substantiate Ecuador’s arguments in

this respect, nor does Ecuador seek to “incorporateŽ an indeterminate range of

otherwise inapplicable environmental treaties via Article 14 of the 1988 Narcotics

Convention, as Colombia alleges 1062. Ecuador does not accept Colombia’s

argument that the 1988 Narcotics Convention is either the principal source of

applicable law or that it functions as a lex specialis, displacing customary law and

1057
CCM, Chap. 8, paras. 8.67-8.88, 8.95-8.100.
1058Ibid., Chap. 8, para. 8.122(2).

1059Ibid., Chap. 8, para. 8. 57.

1060EM, Vol. I, Chap. 5.
1061
See infra Chap. 6, paras. 6.29-6.35. See also Case Concerning Pulp Mills on the River
Uruguay (Argentina v. Uruguay), Judgment, I.C.J. Reports 2010, especially paras. 101, 187, 197,
204-205.

1062CCM, Chap. 8, para. 8.18.

389other applicable treaties. While Ecuador relies on the 1988 Narcotics Convention

as an additional basis for applying general international law on transboundary

harm and applicable human rights treaties, it is not dependent on that Convention

to make its case. The Court has jurisdiction to apply general international law

and applicable treaties in this dispute, and Ecuador invites it to do so.

B. T HE 1988 UN C ONVENTION ON N ARCOTIC D RUGS

6.9 Colombia relies upon Articles 14, 24 and 25 of the 1988 Narcotics

Convention as applicable law 1064. Colombia claims that it has strictly complied

with all applicable treaties, but it cites in addition to the 1988 Narcotics

1065
Convention only the 1992 Biological Diversity Convention . Other treaties

1066
referred to by Ecuador are dismissed as inapplicable between the Parties ,

which misses the point that they may also be evidence of customary international

law or provide guidance in the interpretation of treaties which are applicable

between the Parties, including the 1988 Narcotics Convention. Colombia claims

to recognise the need to take account of human rights and the environment when

implementing the 1988 Narcotics Convention. It refers to the Declaration it made

on ratification and says that “Colombia’s concern in making that declaration was,

106EM, Chap. 4.
1064
CCM, Chap. 9, para. 9.1.
1065
Ibid.
106CCM, Chap. 8, para. 8.8.

390inter alia, to maintain a balance between criminalisation of coca cultivation and a

‘policy of alternative development, taking into account the rights of indigenous

1067
communities involved and the protection of the environment’Ž .

6.10 Colombia nevertheless argues that the 1988 Narcotics Convention

functions as a lex specialis excluding other rules of general international law

1068
relating to the environment or human rights . Ecuador cannot accept this

argument, which misconceives the function of lex specialis rules and the

character of the 1988 Narcotics Convention. The 1988 Narcotics Convention is

not a self-contained regime governing all aspects of relations between the Parties

with regard to drug eradication. To so hold would eviscerate the application of

other general rules of law between the Parties in a manner inconsistent with the

concept of a lex specialis and the proper interpretation of the 1988 Narcotics

Convention. In the present case, Ecuador submits that the correct approach, in

accordance with the wording in the 1988 Narcotics Convention, is to apply both

the Convention and other applicable rules and principles of international law not

incompatible with it.

6.11 Ecuador’s approach conforms to the treatment of lex specialis regimes by

the ILC and in decisions of this Court. As the ILC pointed out in its Report on the

106Ibid., Chap. 8, para. 8.17.

106Ibid., Chap. 8, paras. 8.13-8.18.

391Fragmentation of International Law, a rule may be “specialŽ in various ways,

either because it is a more specific application of a general rule, or because it

1069
modifies or sets aside the general rule . It does not necessarily follow, as

Colombia asserts in this case, that other more general rules are excluded or

trumped by a lex specialis. More usually, a lex specialis enables a court to locate

a specific rule or body of law within a broader set of rules whose content will

influence the interpretation and application of the lex specialis 1070. Ecuador

submits that this view of the relationship between special and general rules

applies aptly in the circumstances of the present case. As the ILC Study Group

notes, “preference was often given to a special standard because it not only best

reflects the requirements of the context, but because it best reflected the intent of

those who were to be bound by itŽ 1071. From this perspective, the lex specialis

doctrine is essentially a technique for interpreting and applying treaties. In

Ecuador’s view, explained in more detail below, that view seems more consistent

1069
United Nations General Assembly, International Law Commission, Fragmentation of
International Law: Difficulties Arising From the Diversification and Expansion of International
Law, Report of the Study Group of the International Law Commission, para. 88, U.N. Doc.
A/CN.4/L.682 (13 Apr. 2006).

1070Case Concerning the Gabþíkovo-Nagymaros Project (Hungary/Slovakia), Judgment, I.C.J.
Reports 1997, para. 132; Amoco International Finance Corp. v. Iran, US-Iran CTR 189, para. 112
(1987); Ambatielos Case (Greece v. United Kingdom), Preliminary Objections Judgment, I.C.J.

Reports 1952, p. 44; Southern Bluefin Tuna Cases, Provisional Measures, Judgment, ITLOS, Nos.
3-4 (2000). See generally Joost Pauwelyn, Conflict of Norms in Public International Law 385-
416 (Cambridge, 2003).
1071
United Nations General Assembly, International Law Commission, Report of the Study Group
on Fragmentation of International Law: Difficulties Arising from the Diversification and
Expansion of International Law, para. 12, U.N. Doc. A/CN.4/L.663 Rev.1 (28 July 2004).

392with the ordinary meaning of Article 14(2) of the 1988 Narcotics Convention, a

provision which Colombia reduces to insignificance in its reading of the text.

6.12 Article 14(2) does not set out special rules on human rights or

environmental protection. Rather, it makes only a general reference to the

existing law on those subjects, and thus serves to place an explicit limit on the

application of the 1988 Narcotics Convention, including Articles 24 and 25.

While in theory there may be circumstances in which the 1988 Narcotics

Convention modifies the law on transboundary harm if necessary to give effect to

its object and purpose, that is far from being the case here. It is neither necessary

nor reasonable to cause transboundary harm in Ecuador in order to facilitate

measures aimed at eradicating illegal drug crops or to give effect to what is in

substance a treaty on law enforcement cooperation.

6.13 Ecuador’s view of lex specialis regimes does not differ from that taken by

the Court. Ecuador invokes the Advisory Opinion on the Legality of the Threat or

Use of Nuclear Weapons 107. In that case, treaties and customary law relating to

the use of force, international humanitarian law, human rights law, and

international environmental law were relied on by various parties to the

proceedings. The Court did not decide the case on the basis of any one of these

107Legality of the Threat or Use of Nuclear Weapons, Advisory Opinion, I.C.J. Reports 1996, p.
240, para. 25.

393bodies of law exclusively, even if it did recognize the particular significance of

the jus in bello. Rather, it accepted that in the appropriate context the use of

nuclear weapons might engage some or all of the rules in question. Thus, human

rights law continued to apply in wartime, but “the test of what is an arbitrary

deprivation of life . . . falls to be determined by the applicable lex specialis,

namely the law applicable in armed conflict which is designed to regulate the

conduct of hostilitiesŽ 1073. Similarly, environmental obligations continued to

apply during an armed conflict and were relevant to assessing whether a

particular use of force was necessary and proportionate but, the Court “did not

consider that [environmental treaties] could have been intended to deprive a State

of the exercise of its right of self-defenceŽ 107.

6.14 In the present case, Ecuador does not seek to deprive Colombia of its right

to implement drug eradication programmes consistent with the 1988 Narcotics

Convention, but it does insist that this Convention cannot and need not be

interpreted so as to deny Ecuador all protection from transboundary harm, as

Colombia appears to argue. Ecuador’s fundamental point is that drug crop

eradication can proceed effectively pursuant to the 1988 Narcotics Convention

without causing significant transboundary harm to Ecuador. When such harm

occurs or is at risk of occurring, its legality must then be judged in accordance

107Ibid., p. 240, para. 25.

107Ibid., p. 242, para. 30.

394with the applicable rules of general international law on the environment and

human rights, as explicitly envisaged by Article 14(2) of the 1988 Narcotics

Convention.

6.15 Colombia recognizes the limits of its own argument. It accepts that “[t]he

natural interpretation of Article 14(2) is that general respect for human rights and

the environment is called for in the context of the required eradication

measuresŽ 1075. This is a concession that Ecuador is pleased to take. Yet,

Colombia does not say what it means by “general respectŽ. Later in the Counter-

Memorial, it again notes that Article 14(2) of the Convention requires the Parties

to take “due account of . . . the protection of the environmentŽ 107. It then says

that “this is subsumed under the general international law relating to

transboundary harm; a State which exercises due diligence in accordance with the

international law standard will thereby respect the protection of the

environmentŽ 1077. That is precisely Ecuador’s point: Colombia accepts that in

relation to the environment, Article 14(2) requires the Parties, inter alia, to apply

the applicable international law standard of due diligence. It follows inexorably

from the logic of Colombia’s own admission that a State that does not exercise

due diligence in accordance with the international law standard will thereby fail

107CCM, Chap. 8, para. 8.18.

107Ibid., Chap. 8, para. 8.119.
1077
Ibid.

395to “respect the protection of the environmentŽ and thus be in breach of Article

14(2) of the 1988 Narcotics Convention. That argument was fully developed by

Ecuador in its Memorial 1078, and is fully maintained.

6.16 Even if, arguendo, Ecuador is wrong in treating Article 14(2) as creating a

cause of action, it still follows that a State that does not exercise due diligence in

accordance with Article 14(2) will not be entitled to rely on the 1988 Narcotics

Convention as a defence to an alleged violation of customary international law on

transboundary harm. Colombia must exercise its powers with respect to drug

eradication on its territory in conformity with applicable international law on

transboundary harm and human rights 107. Colombia’s only answer to that

argument is to rely on Articles 24 and 25 of the 1988 Narcotics Convention. To

recall, these Articles provide:

“Article 24: A Party may adopt more strict or severe measures
than those provided by this Convention if, in its opinion, such
measures are desirable or necessary for the prevention or

suppression of illicit traffic.

“Article 25 : The provisions of this Convention shall not derogate
from any rights enjoyed or obligations undertaken by Parties to
this Convention under the 1961 Convention, the 1961 Convention

as amended and the 1971 ConventionŽ.

6.17 According to Colombia, neither Article 24 nor the 1961 Convention on

Narcotic Drugs or the 1971 Convention on Psychotropic Substances contain any

107EM, Chap. 8, paras. 8.24-8.37.

107See 1988 UN Convention on Narcotic Drugs, Arts. 2 and 14.

396provision “even arguablyŽ incorporating human rights, indigenous rights or

environmental obligations 1080. It goes on to assert that “[a] State accused of

disregard for those obligations in taking some measure could simply say that it

did so pursuant to the permission in Article 24, or the saving clause in Article

25Ž 1081. Colombia then invokes reliance on both provisions 1082.

6.18 It is implicit in Colombia’s argument that Articles 24 and 25 override

Article 14, and indeed every other article of the 1988 Narcotics Convention.

Ecuador does not accept Colombia’s interpretation of Articles 24 and 25. To do

so would give every individual party to that convention carte blanche to disregard

international human rights law and international environmental law, if in its

opinion, it were desirable to do so in order to prevent or suppress traffic in illicit

narcotics. Indeed, it would give a party to the Convention the right to override

any inconvenient part of international law. Presumably, if, in Colombia’s

opinion, it were necessary or desirable to spray toxic herbicides over Quito in

order to suppress illicit narcotics traffic, then Colombia would have a good

defence under Articles 24 and 25. Colombia’s reading of these articles is not

consistent with the object and purpose of the Convention, nor with the ordinary

meaning of the text.

1080CCM, Chap. 8, para, 8.13.

1081Ibid.
1082
Ibid.

3976.19 First, it needs to be recalled that according to Article 2, the object and

purpose of the 1988 Narcotics Convention is to promote cooperation between

States parties. It would be strange indeed if a convention on cooperation were to

be construed as empowering one State unilaterally to violate the rights of other

parties. Nothing in Article 2 supports such an interpretation. Article 2 provides:

“1. The purpose of this Convention is to promote co-operation

among the Parties so that they may address more effectively the
various aspects of illicit traffic in narcotic drugs and psychotropic
substances having an international dimension. In carrying out their
obligations under the Convention, the Parties shall take necessary
measures, including legislative and administrative measures, in

conformity with the fundamental provisions of their respective
domestic legislative systems.

2. The Parties shall carry out their obligations under this

Convention in a manner consistent with the principles of sovereign
equality and territorial integrity of States and that of non-
intervention in the domestic affairs of other States.

3. A Party shall not undertake in the territory of another Party the

exercise of jurisdiction and performance of functions which are
exclusively reserved for the authorities of that other Party by its
domestic lawŽ. (emphasis added).

6.20 Quite apart from the express reference to human rights and environmental

protection in Article 14, the text of Article 2 as highlighted above presupposes at

least three limits on the measures that may be taken to address illicit traffic more

effectively: conformity with fundamental provisions of national law (including

presumably constitutional protection of human rights and the environment);

consistency with sovereign equality, territorial integrity and non-intervention; and

non-exercise of jurisdictional functions reserved to other States. On a plain

398reading of the text, any measures adopted under Article 24 remain subject to the

limitations imposed by Article 2. The second of those limitations applies to the

present case: causing transboundary harm to Ecuador by spraying herbicides in

border areas is inconsistent with sovereign equality, respect for the territorial

integrity of Ecuador, and non-intervention in its domestic affairs 108. On that

reading, Article 24 does not give Colombia “permissionŽ to derogate from its

environmental obligations towards Ecuador, any more than it would sanction

human rights violations by Colombia in Ecuador. Article 2 thus reinforces the

argument that Article 14 constrains the measures parties may take pursuant to the

Convention, and requires them to respect the general law on human rights and the

environment.

6.21 Second, it is also necessary to look more closely at the wording of Article

24. When it refers to a party adopting “more strict or severe measures than those

provided by this ConventionŽ, the obvious intent is to allow parties to do more

within their own domestic jurisdiction. In common with other law enforcement

cooperation conventions, it provides a common minimum for action by all States

parties, but allows individual States to go further if they wish 108. The UN

108EM, Chap. 7.
1084
Other examples include Article 34(3) of the United Nations Convention on Transnational
Organised Crime, which provides: “Each State Party may adopt more strict or severe measures
than those provided for by this Convention for preventing and combating transnational organized
crimeŽ. U.N. Doc. A/55/383 (2000), reprinted in 40 I.L.M. 335 (2001). See also Article Art.
65(2) of the United Nations Convention Against Corruption, which provides: “Each State Party

399Commentary to the 1988 Narcotics Convention gives the example of limitation

periods for prosecution of offences, noting that “a party might provide instead

1085
that the prosecution of those offences would not be subject to any time-limitŽ .

However, nothing in the Commentary to the 1988 Narcotics Convention or its

predecessors of 1961 and 1971 suggests that the parties are thereby granted an

open-ended permission to derogate from international law or violate the rights of

other States, as Colombia appears to argue. The 1988 UN Commentary simply

notes that “[i]n the previous commentaries, it was pointed out that the article

permitted a party to adopt measures additional to those prescribed by the

Convention or to replace them by stricter or more severe measures than those

1086
provided for in the ConventionŽ .

6.22 Consider the effect of Colombia’s Article 24 argument if it were to be

applied to Article 17 of the same Convention. That article deals with illicit traffic

1087
at sea . Article 17 sets out significant limits on the power of States parties to

may adopt more strict or severe measures than those provided for by this Convention for

preventing and combating corruptionŽ. U.N. Doc. A/58/422 (2003), 43 I.L.M. 37 (2004).
1085Commentary on the United Nations Convention Against Illicit Traffic in Narcotic Drugs and

Psychotropic Substances 1988, p. 391, para. 24.3, U.N. Doc E/CN.7/590 (20 Dec.1988). ER, Vol.
IV, Annex 94.
1086
Ibid.
1087Article 17 provides:

ILLICIT TRAFFIC BY SEA

1. The Parties shall co-operate to the fullest extent possible to suppress illicit traffic by sea, in
conformity with the international law of the sea.

400interfere with navigation at sea or arrest of foreign vessels. It is intended to

protect the rights of freedom of navigation “in conformity with the international

2. A Party which has reasonable grounds to suspect that a vessel flying its flag or not
displaying a flag or marks of registry is engaged in illicit traffic may request the assistance of
other Parties in suppressing its use for that purpose. The Parties so requested shall render such
assistance within the means available to them.

3. A Party which has reasonable grounds to suspect that a vessel exercising freedom of

navigation in accordance with international law, and flying the flag or displaying marks of
registry of another Party is engaged in illicit traffic may so notify the flag State, request
confirmation of registry and, if confirmed, request authorization from the flag State to take
appropriate measures in regard to that vessel.

4. In accordance with paragraph 3 or in accordance with treaties in force between them or in
accordance with any agreement or arrangement otherwise reached between those Parties, the

flag State may authorize the requesting State to, inter alia:

a) Board the vessel;

b) Search the vessel;
c) If evidence of involvement in illicit traffic is found, take appropriate action with respect to the

vessel, persons and cargo on board.
5. Where action is taken pursuant to this article, the Parties concerned shall take due account
of the need not to endanger the safety of life at sea, the security of the vessel and the cargo or
to prejudice the commercial and legal interests of the flag State or any other interested State.

6. The flag State may, consistent with its obligations in paragraph 1 of this article, subject its

authorization to conditions to be mutually agreed between it and the requesting Party,
including conditions relating to responsibility.

7. For the purposes of paragraphs 3 and 4 of this article, a Party shall respond expeditiously to
a request from another Party to determine whether a vessel that is flying its flag is entitled to
do so, and to requests for authorization made pursuant to paragraph 3. At the time of

becoming a Party to this Convention, each Party shall designate an authority or, when
necessary, authorities to receive and respond to such requests. Such designation shall be
notified through the Secretary-General to all other Parties within one month of the
designation.

8. A Party which has taken any action in accordance with this article shall promptly inform
the flag State concerned of the results of that action.

9. The Parties shall consider entering into bilateral or regional agreements or arrangements to

carry out, or to enhance the effectiveness of, the provisions of this article.
10. Action pursuant to paragraph 4 of this article shall be carried out only by warships or

military aircraft, or other ships or aircraft clearly marked and identifiable as being on
government service and authorized to that effect.

11. Any action taken in accordance with this article shall take due account of the need not to
interfere with or affect the rights and obligations and the exercise of jurisdiction of coastal
States in accordance with the international law of the sea.

401law of the seaŽ, while enhancing the regime of enforcement through cooperation

with the flag State. If Colombia’s interpretation of Article 24 is correct, then any

party may disregard the limitations recognized by Article 17 if in its opinion it is

necessary or desirable to do so in order to suppress illicit drug traffic. If that is

the intended effect of Article 24, then why did the parties agree to adopt Article

17 108?

6.23 Colombia’s proposed reading of Article 24 lacks credibility and is

implausible. Colombia cannot say that Article 24 overrides human rights and

environmental protection obligations, but not the law of the sea, because nothing

in the wording of the text would support such a distinction. If the rights of other

States under the law of the sea are not overridden by Article 24, then the rights of

other States under international environmental law and human rights law are also

not overridden. These rights are expressly recognized in Articles 2 and 14. In

Ecuador’s submission, Article 24 can only be read as empowering States parties

to do more domestically, not to override international law or violate the territorial

sovereignty or rights of other States. Colombia remains bound by the limitations

imposed by Articles 2 and 14, as well as by general international law in regard to

the environment and human rights.

1088
For the negotiating history of Article 17 (referred to as draft article 12) see United Nations
Conference for the Adoption of a Convention against Illicit Traffic in Narcotic Drugs: Official
Records, Vol. I, pp. 27-28, 154-158; Vol. II, pp. 267-274, 308-314 (Vienna, 1988). ER, Vol. IV,
Annex 96.

4026.24 Similar comments apply to Article 25 insofar as it preserves rights and

obligations under the 1961 Convention on Narcotic Drugs and the 1971

Convention on Psychotropic Substances. Article 25 cannot have been intended to

override international law or permit violations of the rights of other States. That

much is clear from the text of the two earlier conventions.

6.25 Article 39 of the 1961 Convention as amended provides as follows:

“Notwithstanding anything contained in this Convention, a Party

shall not be, or be deemed to be, precluded from adopting
measures of control more strict or severe than those provided by
this Convention and in particular from requiring that preparations

in Schedule III or drugs in Schedule II be subject to all or such of
the measures of control applicable to drugs in Schedule I as in its
opinion is necessary or desirable for the protection of the public
1089
health or welfareŽ .

As in the case of Article 25 of the 1988 Narcotics Convention, the ordinary

meaning of this provision is to preserve the freedom of parties to take additional

domestic measures, not to derogate from international law.

6.26 Article 23 of the 1971 Convention provides: “[a] Party may adopt more

strict or severe measures of control than those provided by this Convention if, in

its opinion, such measures are desirable or necessary for the protection of the

1089United Nations Single Convention on Narcotic Drugs as amended by the 1972 Protocol
Amending the Single Convention on Narcotic Drugs, Art. 39, 976 UNTS 3, reprinted in 11 I.L.M.
804 (1972).

403public health and welfareŽ 1090. This wording is identical to Article 24 of the 1988

Narcotics Convention. It does no more than that Article. Colombia’s

interpretation of Article 25 of the 1988 Narcotics Convention is thus as

unsupported by the text and the object and purpose of the 1961 and 1971

Conventions as its interpretation of Article 24.

6.27 Simply preserving the rights of parties to the 1961 and 1971 Conventions

can thus have no effect on their obligations towards other States under general

international law. Those obligations are expressly preserved by Articles 2 and

14(2), and any relevant rules of international law applicable between the parties

must be taken into account when interpreting and applying Articles 2, 14, 24 and

25 of the 1988 Narcotics Convention in accordance with Article 31(3)(c) of the

1969 Vienna Convention on the Law of Treaties. This would include customary

international law on transboundary harm and environmental impact assessments

(“EIAŽ) 1091. The same argument applies equally to applicable human rights

treaties considered in the next Chapter.

1090
United Nations Convention on Psychotropic Substances (1971), 1019 UNTS 175, reprinted in
10 I.L.M. 261 (1971).
1091Iron Rhine Arbitration (Belgium/Netherlands), Arbitral Award, paras. 58-59 (2005); Case

Concerning the Gabþíkovo-Nagymaros Project (Hungary/Slovakia), Judgment, I.C.J. Reports
1997, pp. 77-78, paras 140-141; Case Concerning Pulp Mills on the River Uruguay (Argentina v.
Uruguay), Judgment, I.C.J. Reports 2010, p. 60, para. 204.

4046.28 In conclusion, whether under customary international law or Article 14(2),

Colombia’s obligations with respect to transboundary harm and EIA are not

overridden by Articles 24 and 25 of the 1988 Narcotics Convention, and these

articles provide no defence to Ecuador’s case on harm or the risk of harm caused

by aerial spraying of toxic herbicides, nor to its arguments with respect to EIA

and cooperation. They also provide no defence to the human rights arguments

1092
made in the Memorial and in the next Chapter of this Repl.

Section III. Failure to Carry Out a Prior Environmental Impact
Assessment

A. DUTY TO C ARRY O UT AT RANSBOUNDARY EIA

6.29 Given the obvious risk of significant transboundary harm posed by

spraying toxic herbicides close to inhabited areas of Ecuador, it is indisputable

that Colombia had an obligation in general international law to carry out a

transboundary EIA before spraying near those areas commenced in 2000. Indeed,

Colombia has not argued the contrary, and most of its discussion of earlier case-

law has been shown to be without merit following the Court’s 2010 Judgment in

Pulp Mills on the River Uruguay. In that case, the Court held that prior

assessment of transboundary impacts is not merely a treaty based obligation … as

109EM, Chap. 9; infra Chap. 7.

405Colombia maintains in its Counter-Memorial … but is a requirement of general

international law:

“In this sense, the obligation to protect and preserve, under Article

41 (a) of the Statute [of the River Uruguay], has to be interpreted
in accordance with a practice, which in recent years has gained so

much acceptance among States that it may now be considered a
requirement under general international law to undertake an
environmental impact assessment where there is a risk that the

proposed industrial activity may have a significant adverse impact
in a transboundary context, in particular, on a shared resource.
Moreover, due diligence, and the duty of vigilance and prevention

which it implies, would not be considered to have been exercised,
if a party planning works liable to affect the régime of the river or
the quality of its waters did not undertake an environmental
1093
impact assessment on the potential effects of such worksŽ .

6.30 The Court also held that “an environmental impact assessment must be

conducted prior to the implementation of a project. Moreover, once operations

have started and, where necessary, throughout the life of the project, continuous

1094
monitoring of its effects on the environment shall be undertakenŽ .

6.31 Colombia argues in its Counter-Memorial that “[a]t most, Colombia had

to conduct an assessment, under the terms of the applicable Colombian law, as to

whether its spraying program risked causing significant transboundary harm, and

1095
if so, what mitigation measures were appropriateŽ . Colombia’s position is

1093Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, p. 60, para. 204 (emphasis added).

109Ibid., p. 61, para. 205 (emphasis added).
1095
CCM, Chap. 8, para. 8.89.

406inconsistent with that of the Court in the Pulp Mills case. For Colombia, the

obligation to conduct a prior assessment of transboundary impact arises, if at all,

from its own law, not general international law. Yet that is not what the Court

ruled in Pulp Mills.

6.32 Colombia then goes on to argue that it had no such obligation, because its

1993 Law on the Environment and the 1994 Regulatory Decree adopted under

that law did not require prior environmental authorization for the application of

pesticides already operating prior to that date 109. This is not a correct

appreciation of its own law. As the Rojas Report makes clear, under Law 99 of

1993, the 1994 and all subsequent aerial spray programmes required an

Environmental License, and thus an EIA:

“[A] strict legal analysis of the laws and regulations in force at that
time, can only lead to the conclusion that the spraying operations
of 1994 and subsequent programs, due to their particularities and

their scope, would have had to be distinguished from those
previously authorized, and therefore would have had to submit to
the regulatory regime of the Environmental License contained in
1097
Law 99 of 1993Ž .

Yet, in Colombia’s view, the 1993 law excludes the aerial spraying programme

from its requirements because it had already begun before 1993. This is simply

1096
Ibid., Chap. 4, paras. 4.10…4.11.
1097
Claudia Rojas Quiñonez, Esq., The Aerial Spray Program and Violations of Colombia’s
Domestic Laws Regarding the Environment and the Rights of Indigenous Peoples, para. 72 (Jan.
2011) (hereinafter “Rojas ReportŽ). ER, Vol. II, Annex 8. See also Letter from Cecilia Lopez
Montano, Minister of Environment, Republic of Colombia, to Nestor Humberto Martinez Neira,
Minister of Justice and Law, Republic of Colombia, p. 1 (20 Dec. 1994). ER, Vol. V, Annex 123.

407wrong. In the first place, after Pulp Mills, it can no longer be argued that there is

no obligation under general international law to conduct a transboundary EIA

prior to commencement of the activity in question. Second, as set out at length in

Chapter 4 of this Reply 1098, the argument is contradicted by Colombia’s own

Ministry of Environment, which for years demanded that the National

Antinarcotics Agency (“DNEŽ) carry out studies of the spray programme’s

environmental impacts. In 1999, the Ministry demanded that the DNE supply it

with “information in relation to the analysis and determination of the conditions

of exposure, whether the exposure was direct or indirect, and the possible

cumulative impacts, the latter with the aim of re-establishing an environmental

1099
risk assessment for the spraying activitiesŽ . When the DNE finally responded,

the Ministry of Environment concluded that the information given was

insufficient to assess environmental risk 1100.

6.33 The Ministry of Environment ordered the DNE to “develop within a

period of six months, for the areas affected by the spraying of glyphosate to

eradicate illicit crops, evaluations of environmental impactŽ that would facilitate

1098
See supra Chap. 4, paras. 4.19-4.29, 4.48.
1099Republic of Colombia, Ministry of Environment, Resolution No. 341, Adopting some
decisions in relation to the Program for the Eradication of Illicit Crops by Aerial Spraying with

Glyphosate, p. 2 (2001) (hereinafter “Colombian Ministry of Environment, Resolution No. 341 of
2001Ž). EM, Vol. II, Annex 14.
1100
Ibid., pp. 4-6. See also Rojas Report, op. cit., para. 78. ER, Vol. II, Annex 8.

408the development of mitigation and compensation measures 1101. In late 2001, the

Ministry of Environment was still requesting information that would allow for the

characterisation of sprayed areas and a determination of risks, and further ordered

the DNE to evaluate the toxicological risks associated with the chemicals

used 1102. The Ministry of Environment’s futile efforts to require the DNE to

assess the aerial spray programme’s environmental impacts are set out in detail in

Chapter 4 of this Reply, so there is no need to repeat them here. What is clear is

that as part of the authorisation process the Ministry of Environment required the

DNE to carry out environmental impact studies of the risks posed by the spray

programme, and that when the necessary information was not forthcoming, it

1103
imposed its own conditions on the spray programme . But neither the Ministry

of Environment nor any other State agency ever succeeded in making DNE (or

anyone else) carry out an EIA 1104.

6.34 In Pulp Mills, the Court noted that “it is for each State to determine in its

domestic legislation or in the authorization process for the project, the specific

content of the environmental impact assessment required in each case, having

1101Colombian Ministry of Environment, Resolution No. 341 of 2001, op. cit., Art. 2. EM, Vol.
II, Annex 14.

1102Republic of Colombia, Ministry of Environment, Resolution No. 1065, Environmental
Management Plan, Arts. 5, 10 (26 Nov. 2001). EM, Vol. II, Annex 15. See also Rojas Report,
op. cit., para. 78. ER, Vol. II, Annex 8.

1103See supra Chap. 4, paras. 4.19-4.29, 4.55-4.56, 4.61, 4.65. See also Rojas Report, op. cit.,
paras. 78-79. ER, Vol. II, Annex 8.

1104See supra Chap. 4, paras. 4.66, 4.75.

409regard to the nature and magnitude of the proposed development and its likely

adverse impact on the environment as well as to the need to exercise due

1105
diligence in conducting such an assessmentŽ . This paragraph makes two

important points. First, it implies that an EIA need not be specifically required by

law, but may be required as part of the authorisation or permitting process. What

matters is that some means is put in place to ensure that an EIA is carried out.

Even if Colombia is correct in saying that no EIA was required by the 1993 Law

on the Environment … which it is not … it is still the case that before authorising

the spray programme the Ministry of Environment was required to ensure that an

assessment of possible transboundary impacts be carried out. It attempted to

exercise that power, but the law enforcement agencies responsible for execution

of the aerial spraying programme refused to obey it, apparently with the backing

of higher authorities. Second, while the “specific contentŽ of each EIA is for the

State to determine, there must be an EIA and it must have regard to “the nature

and magnitude of the proposed development and its likely adverse impact on the

environmentŽ. In this way the Court has recognized that there are certain

minimum requirements that must be met. The Court cannot be understood as

saying that the content of an EIA … if any … is entirely a matter for the State to

decide in its sole discretion. The Court’s approach would be denied of any

practical effect if interpreted and applied to mean that a State could avoid its

110Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, p. 61, para. 205.

410international obligation to carry out a transboundary EIA by not requiring one as

a matter of domestic law or authorization. On the contrary, the approach that

Ecuador recognises to be reflected in the Court’s approach has the merit of

according with the views of the ILC and the arguments of the parties based on the

Commentary. The 2001 ILC Commentary contains the following explanation:

“(7) The specifics of what ought to be the content of assessment is
left to the domestic laws of the State conducting such assessment.

For the purposes of article 7, however, such an assessment should
contain an evaluation of the possible transboundary harmful
impact of the activity. In order for the States likely to be affected to

evaluate the risk to which they might be exposed, they need to
know what possible harmful effects that activity might have on
them.

(8) The assessment should include the effects of the activity not
only on persons and property, but also on the environment of other
States. The importance of the protection of the environment,

independently of any ha1106o individual human beings or property
is clearly recognizedŽ .

6.35 It is apparent from the Commentary that whatever else may be required

by national law, international law requires at a minimum that an EIA assess

possible effects on people, property and the environment of other States likely to

be affected. If national law does not ensure that such an assessment is carried out

1106
United Nations General Assembly, Report of the International Law Commission on the Work
of its Fifty-Third Session (23 April–1 June and 2 July–10 August 2001), commentary to Article 7,
at pp. 402-405, U.N. Doc. A/56/10 (2001) (emphasis added, internal citation omitted). Article 7
provides: “Any decision in respect of the authorization of an activity within the scope of the
present articles shall, in particular, be based on an assessment of the possible transboundary harm
caused by that activity, including any environmental impact assessmentŽ. Ibid., p. 402.

411… for whatever reason … then there is inevitably a breach of this obligation. That

is the situation in which Colombia finds itself.

B. C OLOMBIA DID N OTC ARRY OUT A T RANSBOUNDARY EIA

6.36 The essential point in Ecuador’s case on EIA is that no assessment of the

risk of transboundary harm was conducted at any time prior to authorization or

implementation of Colombia’s aerial spraying programme; nor has it been carried

out subsequently. Chapter 4 sets out in detail the account of how the Colombian

Ministry of Environment and other agencies repeatedly tried but failed to compel

the DNE to carry out the necessary studies. Without exception, these demands

were frustrated by the organ of the Colombian State responsible for conducting

the aerial spraying (DNE) 110. Spraying along the Ecuador border began in

January 2000, at which point the Ministry of Environment was still trying to force

1108
the DNE to carry out the required EIA . It continued trying until the Minister

1109
of Environment resigned in 2003 .

6.37 Colombia has no case on EIA. Nothing in the Counter-Memorial shows

that Colombia carried out an EIA of possible transboundary effects prior to

authorising or implementing the border spraying programme. Indeed, Colombia

110See supra Chap. 4, Sections I and II.
1108
See supra Chap. 4, paras. 4.30,4.35.
1109
See supra Chap. 4, paras. 4.48-4.67.

412does not even purport to claim that it carried out an EIA. It complied neither with

the requirements of international law nor even its own national law. In particular

it failed to assess:

x the chemicals actually used in the spray programme;

x the likelihood of the spray drifting across the border;

x the likely impact on the receiving environment in Ecuador if
spray did drift across the border.

6.38 Colombia argues that spraying was approved in 1994 only “after carrying

1110
out relevant scientific studies and assessing the existing situationŽ . It says that

“[t]hese studies included experimental assessments of glyphosate applications in

the Natural Park at the Sierra Nevada in Santa Marta in the 1980sŽ 1111. The only

study listed at this point in the Counter-Memorial was undertaken in 1987. It is

reproduced in Annex 123, which indicates that “[t]his study has been undertaken

for the need of the Colombian National Police to establish the effects on the

jungle as a consequence of the intensive application (by means of spraying) of

1112
glyphosate used to destroy marijuana cropsŽ . It goes on to list the sites at

1110
CCM, Chap. 4, para. 4.8.
1111
Ibid., Chap. 4, para. 4.8, n. 253.
1112SGS (Societé Générale de Surveillance, S.A.) Colombia S.A., “Report of Contamination

Control for glyphosate application at the Sierra of Santa MartsŽ, Introduction (1987). CCM, Vol.
III, Annex 123.

413which tests were carried out, and the sampling scheme for soil, foliage and

rivers1113. But that is all.

6.39 Three omissions in the 1987 study are fundamental. First, in Chapter 2 of

this Reply Ecuador pointed out significant differences in the various spray

formulations used by Colombia. It is unclear which of these formulations, if any,

was used in the 1987 trial. Colombia does not say whether the spray used in 1987

consisted only of glyphosate, or was the same as one of the glyphosate-based

formulated products and other substances subsequently used along the border to

eliminate coca plantations. Was it Roundup Ultra? Or Roundup Export? Was

Cosmo-Flux added? Or POEA? We do not know and Colombia does not say.

Second, there is no reference in the study to any assessment of the likelihood of

drift or deposition of herbicides at some distance from the target. The only field

study conducted much later by Colombia on spray drift showed that glyphosate

mixed with Cosmo-Flux, one of the adjuvants used in Colombia’s spray

programme, is more prone to drift than any other glyphosate-based formulation

that was tested, yet Colombia refused to abandon the use of Cosmo-Flux 1114.

Third, the 1987 study makes no mention of possible transboundary impacts on

Ecuador, and it says nothing about possible effects on humans, animals or

1113
Ibid.
1114See supra Chap. 2, paras. 2.186-2.187; Las Palmas Ltda., Technical Department, Glyphosate

(10,4 l/ha) and Three Different Adjuvants, For Illicit Coca Crop (Erythoxylum spp.) Control,
Agronomic Efficacy Testing of Doses of Glyphosate in Illicit Crops: Final Report, p. 12 (July
2004). ER, Vol. III, Annex 15.

414property. It tells us only what might happen to glyphosate in the jungle in a

Colombian national park if one unidentified type of herbicide is directly sprayed

1115
on it months earlier .

6.40 Given these manifest deficiencies, it is impossible to read the 1987 study

as a transboundary EIA for the purpose of assessing the probable effects of

different glyphosate formulations drifting into inhabited areas of Ecuador.

6.41 Nevertheless, in October 1993 the Colombian Health Ministry and the

National Institute for Natural Renewable Resources and the Environment

(“IDERENAŽ) issued opinions approving the use of glyphosate for eradication of

coca and marijuana crops 1116. It is worth noting the terms in which IDERENA’s

opinion was given, because it does not support the rosy view of glyphosate …

1117
likening it to “baby shampooŽ … presented in the Counter-Memorial .

Reproduced in Annex 35 of Colombia’s Counter-Memorial, it says, inter alia:

“When the spraying process started in the Province of Huila, the
Antinarcotics Police established ten (10) parameters, among which

it is important to highlight the ones referring to environmental

1115
SGS (Societé Générale de Surveillance, S.A.) Colombia S.A., “Report of Contamination
Control for glyphosate application at the Sierra of Santa MartsŽ, Introduction (1987). CCM, Vol.
III, Annex 123.
1116
CCM, Chap. 4, para. 4.9. See also Note from the General Manager of INDERENA (National
Institute for Renewable Natural Resources and the Environment) to the Director of the National
Narcotics Directorate of Colombia (8 Oct. 1993) (hereinafter “Oct. 1993 letter from INDERENA
to DNEŽ). CCM, Vol. II, Annex 35; Note from the Colombian Health Minister to the Director of

the National Narcotics Directorate (11 Oct. 1993). CCM, Vol. II, Annex 36.
1117CCM, Chap. 7, para. 7.97.

415 aspects: the herbicide will not be sprayed on inhabited areas, fish
ponds, apiaries, poultry, or other animals, and on Special
Management Areas; spraying will not conducted in sites close to

water streams or sources; not to over flight (sic) water pipe
reservoirs, schools or other sites that pose risk to human health
and the environment.

Under these conditions, INDERENA ratifies the acceptance of the
action strategy set by the National Narcotics Council in its
communiqué dated 31 January 1992, pointing out the importance

that must be given to compliance with the specific and technical
parameters established for the eradication process of poppy crops
and that must be kept for eradication of coca and cannabis
cropsŽ1118.

6.42 It is Ecuador’s case that the spraying has not been carried out in

conformity with the parameters identified by IDERENA. Instead, toxic spray has

indeed been sprayed over, or drifted over, inhabited areas, fish ponds, poultry,

other animals, schools and other areas, where it “poses risk to human health and

the environmentŽ in Ecuador. It is notable that IDERENA foresaw the likely

consequences of aerial spraying in more vulnerable areas. But like the 1987

study referred to earlier, this opinion cannot be described as a transboundary EIA,

however concerned it may have been about the potential risks. Colombia does not

attempt to argue that it constitutes an EIA.

111Oct. 1993 letter from INDERENA to DNE. CCM, Vol. II, Annex 35 (emphasis added).

416 C. AN EMP ISN OT AN EIA

6.43 The authorisation to begin spraying in border areas was thus not based on

a transboundary EIA. Nevertheless, Colombia argues that the Environmental

Management Plan (“EMPŽ), which lays down the conditions for the spraying

programme, “is equivalent to an environmental impact assessmentŽ 111. That

might be convincing if an EMP met the main requirements of an EIA, but it does

not, as a comparison of Colombia’s own description of the two processes shows.

6.44 Colombian law provides that:

“The environmental impact assessment will include information
about the location of the project and the biotic and abiotic and
socio-economic elements of the milieu that may suffer

deterioration by the corresponding work or activity that for their
execution are required to have a license, and an evaluation of the
impacts they may cause. It will also include the design of the plans

for prevention, mitigation, correction, and compensation for
impacts and the environmental management plan for the work or
activityŽ112.

6.45 In contrast, Colombia defines an “environmental management planŽ in the

following terms:

“Environmental Management Plan: Is the plan that, in a detailed
way, establishes the actions required to prevent, mitigate, control,
compensate, and correct the possible negative environmental
effects or impacts caused in the implementation of a project, work

1119
CCM, Chap. 4, para. 4.10.
112Colombian Law 99 of 1993, Art. 57. CCM, Vol. II, Annex 32.

417 or activity. It includes follow-up, evaluation, and monitoring plans
1121
and contingency plansŽ .

6.46 While there is evidently some overlap between an EIA and an EMP, the

two processes are very different. Colombia acknowledges this. Paragraph 6.24

of the Counter-Memorial confirms that at the time of meetings with Ecuadorian

officials in 2003, “Colombia had only developed an Environmental Management

Plan, on the basis of the experience gained by prior experimental spraying

programmes and studies, and not an ‘Environmental Impact Assessment

1122
conducted prior to sprayings of Glyphosate’, as requested by EcuadorŽ .

6.47 Colombia’s Counter-Memorial nevertheless argues that the EMP adopted

in 2001 (nearly two years after spraying began near Ecuador) is the equivalent to

an EIA. This is a fallacy: an EMP is not and could not be an EIA 1123. An EIA is

necessary to identify risks to the human population, to agriculture and to other

socio-economic activities, to flora and fauna, and to the environment; and to

determine whether they are acceptable and under what conditions. An EMP

comes later in time, and in response to the risks identified by the EIA; based on

the risks identified in the EIA, the EMP establishes the operational parameters

and requirements for avoidance or mitigation of those risks. The EIA is therefore

112Colombian Decree 1753 of 1994, Art. 1. CCM, Vol. II, Annex 38.

112CCM, Chap. 6, para. 6.24.
1123
Ibid., Chap. 4, para. 4.10.

418the sine qua non for the EMP. Colombia’s EMP is made up of three specific

programmes, covering operations management, detection and spraying. It merely

sets parameters for the operation, including flight altitude, temperature, relative

1124
humidity, cloudiness, rainfall, type of nozzle, droplet size, etc . This is not an

EIA, whether under international law or under Colombian law.

6.48 Had there been a transboundary EIA, the EMP could and should have

been informed by it. Without the benefit of a properly conducted EIA, it is hardly

surprising that, among other things, the EMP fails to address the risk of drift

causing transboundary harm and does not consider the dangers presented by the

full range of chemicals in the spray mixture. Crucially, what the EMP appears to

lack is the key information provided by an EIA, even in Colombia, namely “the

location of the project and the biotic and abiotic and socio-economic elements of

the milieu that may suffer deterioration . . . and an evaluation of the impacts they

may causeŽ 1125. The lack of any information about the location of the project and

the impacts it may cause helps explain Ecuador’s objections to the spraying

programme: an EMP is simply not designed to address the possibility of

transboundary harm arising in Ecuador. It is focused only on how the spray

operation is conducted in Colombia.

1124
See Note Nº SARE-142 from the Director of the National Narcotics Directorate of Colombia
to the President of the Scientific and Technical Commission of Ecuador, para. 2.4. CCM, Vol. II,
Annex 13.
1125
Colombian Law 99 of 1993, Art. 57 (emphasis added). CCM, Vol. II, Annex 32.

4196.49 Thus, to confuse the EMP with a transboundary EIA is to miss the point

entirely. Whereas the EMP sets operational parameters, an EIA is “a national

procedure for evaluating the likely impact of a proposed activity on the

1126
environmentŽ . The UN Environmental Programme defines it as “an

examination, analysis and assessment of planned activities with a view to

1127
ensuring environmentally sound and sustainable developmentŽ . Colombia’s

own documentation shows that its EMP does none of these things.

6.50 Colombia attempts to support its argument on EIA by reference to various

other studies, including the studies delivered in 2005 and 2009 (the “Solomon

1128
StudiesŽ) . For reasons fully elaborated in Chapter 4, none of these studies can

1129
be treated as an EIA . Neither addressed the risks to Ecuador, and both relied

upon seriously flawed data when evaluating the risk of spray drift. In any event,

they were conducted long after spraying began 113. The conclusion that follows

inexorably from the history revealed in Chapter 4 is obvious: at no time, whether

before it began spraying in border areas or subsequently, has Colombia carried

out an EIA of potential transboundary impacts.

1126See United Nations Convention on Environmental Impact Assessment in a Transboundary

Context, Art. 1(vi) (1991), 1989 UNTS 310, reprinted in 30 I.L.M. 800 (1991).
11271987 United National Environmental Programme Goals and Principles of Environmental

Impact Assessment, preamble.
112CCM, Chap. 7, paras. 7.11-7.12.

112See supra Chap. 4, paras. 4.37-4.41, 4.45-4.46.

113See ibid.

4206.51 In conclusion, Colombia’s own evidence has shown that it did not carry

out a transboundary EIA. To plug this hole in its case, Colombia has attempted to

argue that no EIA was required, or alternatively to find an EIA equivalent in the

EMP. Of necessity, its argument fails because the EMP and later studies were not

designed to do what a transboundary EIA is meant to do … assess likely impacts

on other States. There has plainly been a violation of Colombia’s obligations in

general international law with respect to transboundary EIA.

Section IV. Failure to Act with Due Diligence to Prevent Transboundary
Harm

A. COLOMBIA S FAILURE TO PREVENT SIGNIFICANTH ARM

6.52 Colombia argues that there is no evidence of significant harm in

1131
Ecuador . Chapter 3 of this Reply sets out in detail the evidence of avoidable

and significant harm caused by Colombia’s deposition of toxic herbicides over

Ecuadorian territory. Chapter 3 lists, inter alia:

▯ effects on the health of the population, including damage to
eyesight, sickness, skin and throat irritation, vomiting and

diarrhea;

▯ destroyed or damaged crops and farm animals;

▯ effects on forests, water supplies and the environment;

▯ displacement and effects on the health and cultural life of
indigenous peoples;

113CCM, Chap. 7, para. 7.10.

421 ▯ cumulative effects on a fragile environment and subsistence
1132
lifestyle arising from repeated exposure to toxic spraying .

6.53 Contrary to Colombia’s assertions, the totality of the damage more than

satisfies the test of “significant harmŽ, a standard which Colombia accepts is the

threshold for obligations of transboundary harm prevention and risk management

1133
to arise . This is the term used by the ILC in the 1997 Convention on

1134
International Watercourses and the 2001 Articles on Prevention of

1135
Transboundary Harm . The Commentary to both texts notes that “significantŽ

1136
harm need not be serious or substantial but must be “more than trivialŽ . In the

present case, the health symptoms which Colombia perfunctorily dismisses

include eye irritation, respiratory distress, skin infections and gastroinsestinal

difficulties1137. None of these are trivial effects. Nor can the evidence of pollution

of essential water supplies, crop damage and loss of harvests, or harm to farm

animals, be classed as trivial. Some villagers have had to move away from polluted

1132
See supra Chap. 3, Sec. I.
1133
CCM, Chap. 8, para. 8.59.
1134Convention on the Law of the Non-Navigational Uses of International Watercourses, Art. 7

(1997), 36 I.L.M. 700 (1997).
1135International Law Commission, Draft Articles on the Prevention of Transboundary Harm

from Hazardous Activities, Arts. 1-4, 8-12 (2001) (hereinafter “Draft Articles on Prevention of
Transboundary HarmŽ).
1136
United Nations General Assembly, Convention On the Law of the Non-Navigational Uses of
International Watercourses, Report of the Sixth Committee Convening as the Working Group of
the Whole, p. 5, U.N. Doc. A/51/869 (11 Apr. 1997). United Nations General Assembly, Report
of the International Law Commission on the Work of its Fifty-Third Session (23 April–1 June and
2 July–10 August 2001), p. 152, paras. (4)-(7), U.N. Doc. A/56/10 (2001).

1137See supra Chap. 3, Section I, esp. para. 3.14.

422 1138
border areas . These effects are all documented in the Memorial and in Chapter 3

1139
of this Reply . Under human rights law, effects of the scale and kind inflicted on

Ecuador have been more than sufficient to establish violations of the right to life, the

right to private life, the right to property, and the right to health and a healthy

environment 1140. They are more than sufficient to satisfy the threshold standard of

significant harm in general international law. Colombia is responsible in

international law for its failure to prevent this harm, and Ecuador is entitled to

reparation as indicated in Chapter 8.

6.54 In response to Colombia’s assertion that it took “reasonable precautionsŽ

1141
when conducting its aerial spraying programme , it is only logical that the

reasonableness of the precautions allegedly taken depends on the risk of harm that

has been created. Colombia asserts that the herbicide was a Class III substance,

i.e., that it was only “mildly toxicŽ 1142. Ecuador has already shown in Chapter 2

1138See e.g., supra Chap. 3, paras. 3.83, 3.114. See also e.g., Declaration of Witness 10, 16 Jan.
2009, p. 4. EM, Vol. IV, Annex 198; Declaration of Witness 11, 16 Jan. 2009, p. 4. EM, Vol. IV,

Annex 199.
1139
EM, Chap. 6 ; supra Chap. 3, Section I.
1140Social and Economic Rights Action Centre and the Centre for Economic and Social Rights v.

Nigeria, ACHPR Comm. 155/96 (2002); Maya Indigenous Communities of the Toledo District v.
Belize, Inter-Am. C.H.R., Report No. 40/04, Case 12.053 (12 Oct. 2004); López Ostra v. Spain,
Judgment, ECHR, Series A No. 303-C (9 Dec. 1994); Guerra and Others v. Italy, Judgment,
ECHR, Reports of Judgments and Decisions 1998 I (19 Feb. 1998); Fadeyeva v. Russia [2005]

ECHR 376; Öneryildiz v. Turkey [2004] ECHR 657; Case of Taskin and Others v. Turkey,
Judgment, ECHR, paras. 113-119 (10 Nov. 2004); Tatar v. Romania, No. 67021/01 ECHR, para.
88 (2009); Budayeva, al. v. Russia, Judgment, No. 15339/02, ECHR (2008).
1141
CCM, Chaps. 7 and 8, paras. 7.187, 8.49.
1142
CCM, Chap. 8, para. 8.49.

423of this Reply that this is not true, and that Colombia has misrepresented the

composition of the compounds actually used at various times 114. The Counter-

Memorial’s claim that only two glyphosate-based products have been used

1144
(Roundup SL and GLY-41) is inconsistent with the evidence that Colombia

used a different product, Roundup Export, and discontinued its use only after the

U.S. Environmental Protection Agency gave it the highest possible toxicity rating

1145
and determined, among other things, that it causes permanent eye damage . It

is also inconsistent with the evidence that Colombia used Roundup Ultra as

well 114. Indeed, all of the compounds used in the aerial spraying programme are

significantly more toxic to human health than Colombia acknowledges. The

warnings found on manufacturers’ labels show clearly the risks to human health

1147
and legitimate agriculture and livestock created by using these chemicals .

They point to the need for the utmost care and caution. The addition of POEA and

Cosmo-Flux further exacerbates the problem that these chemicals are simply

inappropriate for spraying in inhabited areas. In many countries the aerial

spraying of chemicals such as those used by Colombia is banned altogether or

severely restricted 1148. The European Union directive on aerial spraying

1143See supra Chap. 2, paras. 2.17-2.63.
1144
CCM, Chap. 4, para. 4.50.
1145
See supra Chap. 2, paras. 2.18-2.23.
1146
See supra Chap. 2.
1147See supra Chap. 2, paras. 2.19-2.20, 2.27-2.29, 2.32-2.34, 2.37-2.41.

1148See supra Chap. 4, paras. 4.99-4.114.

424succinctly summarises why aerial spraying has to be severely limited and

stringently controlled:▯

“Aerial Spraying of pesticides has the potential to cause significant

adverse impacts on human health and the environment, in
particular from spray drift. Therefore, aerial spraying should

generally be prohibited with derogations possible where it
represents clear advantages in terms of reduced impacts on human
health and the environment in comparison to other spraying

methods, or where there are no viable alternatives, provided that
the best available technology to reduce drift is usedŽ 114.

6.55 For all these reasons and others reviewed in detail in Chapter 2 of this

Reply, it is correct to characterize aerial application of the glyphosate-based

formulations used by Colombia in inhabited border areas as “inherently

1150
hazardousŽ and Ecuador rejects Colombia’s claim that they are not . The aerial

1149
European Parliament and the Council of the European Union, Directive 2009/128/EC:
Establishing a Framework for Community Action to Achieve the Sustainable Use of Pesticides,
para. (14) (21 Oct. 2009). ER, Vol. IV, Annex 109.
1150
See supra Chap. 2, paras. 2.17-2.61; R. John Hansman, Ph.D. & Carlos F. Mena, Ph.D.,
Analysis of Aerial Eradication Spray Events in the Vicinity of the Border Between Colombia and
Ecuador from 2000 to 2008, p. 30 (Jan. 2011) (concluding that Colombia's aerial spraying
operations have routinely violated numerous operational parameters).ER, Vol. II, Annex 1;

Durham K. Giles, Ph.D., Spray Drift Modeling of Conditions of Application for Coca Crops in
Colombia, p. 48 (Jan. 2011) (concluding that meaningful quantities of spray drift are expected to
travel 10 kilometres or more). ER, Vol. II, Annex 2; Stephen C. Weller, Ph.D., Glyphosate-Based
Herbicides and Potential for Damage to Non-Target Plants Under Conditions of Application in
Colombia, p. 25 (Jan. 2011) (concluding that drift resulting from Colombia’s aerial spraying

operations would be expected to cause injury to plants at distances of up to 10 kilometres from the
site of application). ER, Vol. II, Annex 3; Charles A. Menzie, Ph.D. & Pieter N. Booth, M.S.,
Response to: “Critique of Evaluation of Chemicals Used in Colombia’s Aerial Spraying Program,
and Hazards Presented to People, Plants, Animals and the Environment in Ecuador,” As
Presented in: Counter-Memorial of the Republic of Colombia, Appendix, p. 41 (Jan. 2011)
(concluding that a buffer zone of at least 10 kilometres is warranted). ER, Vol. II, Annex 6;

Reinhard Joas, Ph.D., The Development of the 2009 European Union Pesticides Directive With
Particular Focus on Aerial Spraying, pp. 13-16 (Jan. 2011) (hereinafter “Joas ReportŽ)

425spraying of these chemical compounds has predictably and foreseeably caused

1151
significant harm in Ecuador . Moreover, there is no countervailing public

benefit that could justify imposing such a burden on the population living on

Ecuador’s side of the border. In these circumstances, the measures required to

prevent transboundary harm will necessarily be more demanding than Colombia

has so far recognized. Unfortunately, the measures taken by Colombia to prevent

transboundary harm have been lax and ineffective in the extreme.

6.56 Chapter 4 details how poorly regulated Colombia’s aerial spraying

programme is, especially when compared to generally accepted international

standards endorsed by the UN Food and Agricultural Organization and followed

or exceeded in many other countries 1152. Of itself, that is sufficient to show that

Colombia has not acted with due diligence to prevent significant harm in

Ecuador 1153. When the flight data records submitted in evidence by Ecuador

show that even Colombia’s already lax regulations are regularly flouted with

evident impunity, the argument that it took “reasonable precautionsŽ to prevent

1154
transboundary harm becomes wholly unsustainable . The combination of

(concluding that Colombia’s aerial spraying programme is inconsistent with European Union
legislation designed to prevent risks to human health and the environment). ER, Vol. II, Annex 7.
1151
See supra Chap. 3, Section I.
1152
Food and Agriculture Organization of the United Nations, Guidelines on Good Practice for
Aerial Application of Pesticides (2001). ER, Vol. IV, Annex 98.
1153
See supra Chap. 4, paras. 4.77-4.87, 4.99-4.114.
1154See supra Chap. 2, Sections II, III and IV.

426inappropriate chemicals, lax regulation and inadequate enforcement is fatal to

Colombia’s case on due diligence. It cannot credibly say that it has acted with the

due diligence expected of governments which carry out or permit hazardous

activities near an international border. When compared to the standard set by the

Court in the Pulp Mills case, Colombia’s failure to act accordingly is manifest.

B. DUE D ILIGENCE IN THE PULP M ILLSCASE

6.57 With regard to the prevention of transboundary harm, the Court held in

Pulp Mills:

“The Court points out that the principle of prevention, as a
customary rule, has its origins in the due diligence that is required
of a State in its territory. It is ‘every State’s obligation not to allow

knowingly its territory to be used for acts contrary to the rights of
other States.’ A State is thus obliged to use all the means at its
disposal in order to avoid activities which take place in its

territory, or in any area under its jurisdiction, causing significant
damage to the environment of another State. This Court has
established that this obligation ‘is now part of the corpus of
international law relating to the environment’Ž.

6.58 The obligation of prevention is not an obligation of result nor does it

require in all cases the elimination of all risk.To that extent Ecuador and

Colombia agree, and it is unnecessary to respond to Colombia’s arguments on the

point. But there is plainly an obligation of diligent conduct … to take measures

that are necessary in the circumstances to minimize or prevent significant

115Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, p. 38, para. 101 (internal citations omitted).

427transboundary harm 1156. What measures are required will depend on the character

of the risk and the likely harm. Colombia cites passages to this effect from the

ILC commentary to its draft Articles on Prevention of Transboundary Harm 1157.

Ecuador does not disagree. The Parties are thus divided not about the principle of

prevention as such, but about the nature of the risk from aerial spraying of the

various compounds used by Colombia, and about the conduct required of

Colombia to prevent transboundary harm.

6.59 Ecuador argued and continues to argue that in the circumstances of this

case the standard of care that is necessary and readily achievable to reduce the

risk of significant transboundary harm is to refrain from spraying within 10

kilometres of the border since this is the only response that can eliminate the risk

1158
of transboundary harm to Ecuador . Colombia characterises this as an

1159
“absolute prevention thesisŽ , which it claims is not supported by either the

1160
ILC commentary or by this Court’s judgment in Gabþikovo-Nagymaros .

1156Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, p. 55, para. 187: “The Court considers that the obligation laid down in Article 36 is
addressed to both Parties and prescribes the specific conduct of co-ordinating the necessary

measures through the Commission to avoid changes to the ecological balance. An obligation to
adopt regulatory or administrative measures either individually or jointly and to enforce them is
an obligation of conduct. Both Parties are therefore called upon, under Article 36, to exercise due
diligence in acting through the Commission for the necessary measures to preserve the ecological

balance of the riverŽ. (Emphasis added).
1157CCM, Chap. 8, para. 8.52.

1158EM, Chap. 8, paras. 8.27-8.31.

1159CCM, Chap. 8, paras. 8.53-56.
1160
Ibid., Chap.8, paras. 8.55-56.

428Colombia says that the “vigilance and preventionŽ required by the Court in that

1161
case “do not entail the elimination of all risk whateverŽ . That might be true if

the potential harm were not as significant as it is in this case, or if it did not reach

a level that amounted to a threat to human health and livelihood, as well as the

natural environment, or if it were impossible to eliminate the risk by other

reasonable means. But that is not the case here. Aerial spraying of glyphosate

formulations with toxic surfactants is a threat to human health and livelihood and

the environment in Ecuador. Eliminating the risk posed by aerial spraying is not

only possible using reasonable means; it has already been accomplished. The risk

was eliminated in 2007, when Colombia stopped aerial spraying in the border

areas. It could have been eliminated in 2000, by not spraying near the border, as

Ecuador has consistently sought.

6.60 To quote the Court’s Judgment in Pulp Mills: Colombia must use “all the

means at its disposal in order to avoid activities which take place in its territory,

or in any area under its jurisdiction, causing significant damage to the

1162
environment of another State . . .Ž . Ecuador is not asking for more than the

Court itself has described as the appropriate standard to be applied. In the present

case, as Ecuador has already shown in the Memorial, Colombia has not used “all

the means at its disposalŽ in order to prevent transboundary drift causing

116Ibid.
1162
Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, p. 38, para. 101.

429significant harm. Nor has it taken seriously the need for an appropriately

precautionary approach to harm prevention. Yet it can do both: by making

permanent its suspension of aerial spraying within 10 kilometres of the border, in

effect since 2007. This Colombia has refused to do.

C. A PPLICATION OF THE PRECAUTIONARY P RINCIPLE

6.61 Colombia argues that the precautionary principle “may be seen as

providing guidance as to how States should conduct themselves in matters

concerning sustainable developmentŽ 1163. It goes on to claim that “[t]here is no

reason to think that it modifies the substantive law as concerns transboundary

1164
harmŽ . This is not a serious argument. The most authoritative version of the

precautionary principle was adopted by consensus in Principle 15 of the 1992 Rio

Declaration on Environment and Development 116. Principle 15 specifically

refers in this context to protection of the environment, not merely sustainable

development. It provides: “In order to protect the environment, the precautionary

approach shall be widely applied by states according to their capabilities. Where

there are threats of serious or irreversible damage, lack of full scientific certainty

1163
CCM, Chap. 8, para. 8.57.
1164
Ibid.
1165United Nations Conference on Environment and Development, Rio Declaration on

Environment and Development, Principle 15, U.N. Doc. A/CONF.151/26 Vol. I, reprinted in 31
I.L.M. 874 (1992).

430shall not be used as a reason for postponing cost-effective measures to prevent

environmental degradationŽ 1166.

6.62 A moment’s consideration of the many environmental treaties that refer to

the precautionary principle or precautionary approach will immediately show that it

1167
is not limited to “sustainable developmentŽ . As a general principle, Principle 15

certainly covers transboundary pollution, and to argue otherwise is not sustainable.

6.63 But even if Colombia’s argument with respect to the precautionary

principle and sustainable development were correct, there can be no doubt that

the kind of transboundary harm suffered by Ecuador amounts to an interference

1166
Ibid.
1167See e.g., United Nations Framework Convention on Climate Change, Art. 3, U.N. Doc.

A/AC.237/18 (Part II)/Add.1 (1992), reprinted in 31 I.L.M. 849 (1992); Convention on Biological
Diversity, Preamble, 1760 UNTS 79, reprinted in 31 I.L.M. 818 (1992) and Cartagena Protocol on
Biosafety to the Convention on Biological Diversity, 2226 UNTS 208, reprinted in 39 I.L.M.
1027 (2000); Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution on
Further Reduction of Sulphur Emissions, 2030 UNTS 122 (1994); Protocol to the 1979

Convention on Long-Range Transboundary Air Pollution on Heavy Metals, 2237 UNTS 4 (1998);
Protocol to the 1979 Convention on Long-Range Transboundary Air Pollution on Persistent
Organic Pollutants, 2230 UNTS 79 (1998); 1996 Protocol to the Convention on the Prevention of
Marine Pollution by Dumping of Wastes and Other Matter, Art. 3, reprinted in 36 I.L.M. 1 (1997);

Stockholm Convention on Persistent Organic Pollutants, Art. 1, reprinted in 40 I.L.M. 532 (2001);
Convention for the Protection of the Marine Environment of the Northeast Atlantic (“Paris
ConventionŽ), Art. 2, reprinted in 32 I.L.M. 1069 (1993); Convention on the Protection and Use of
Transboundary Watercourses and International Lakes, Art. 2(5), 1936 UNTS 269, reprinted in 31
I.L.M. 1312 (1992); Convention on Co-operation for the Protection and Sustainable Use of the

Danube River, Art. 2(4) (1994) available at: http://www.icpdr.org/icpdr-pages/drpc.htm;
Convention on the Protection of the Marine Environment of the Baltic Sea Area, Art. 3(2), 1507
UNTS 167, reprinted in 13 I.L.M. 546 (1974); Rhine Convention Against Pollution by Chlorides,
Art. 4, reprinted in 16 I.L.M. 265 (1976); United Nations Conference on Straddling Fish Stocks
and Highly Migratory Fish Stocks, Art. 6, reprinted in 34 I.L.M. 1542. See Patricia Birnie, Alan

Boyle and Catherine Redgwell, International Law and the Environment 152-164 (3rd ed., Oxford U.
Press, 2009).

431with or denial of the right to sustainable development. The Court has itself noted

how “[t]his need to reconcile economic development with protection of the

1168
environment is aptly expressed in the concept of sustainable developmentŽ .

As a result of Colombia’s aerial spraying of toxic herbicides Ecuador has suffered

water pollution, soil pollution, loss of crops and harm to animals, as well as

illness in the human population and damage to the environment in border areas.

The most obvious characteristics of unsustainable development include material

harm and a lack of material benefits for those most adversely affected 116. The

kind of damage suffered by Ecuador cannot be characterised as consistent with

sustainable development.

6.64 The UN Special Rapporteur on the Right to Health has also taken the view

that the precautionary principle is applicable in the present case:

“the Special Rapporteur’s preliminary view was that there was

credible and reliable evidence that the aerial spraying of
glyphosate along the border damages the physical and mental
health of people living in Ecuador. The Special Rapporteur’s

preliminary conclusion was that the evidence provided during the
mission was sufficient to call for the application of the
precautionary principle and that, accordingly, Colombia should not

1168
Case Concerning the Gabþíkovo-Nagymaros Project (Hungary/Slovakia), Judgment, I.C.J.
Reports 1997, p. 78, para. 140.
116Social and Economic Rights Action Centre and the Centre for Economic and Social Rights v.

Nigeria, ACHPR Comm. 155/96 (2002); Maya Indigenous Communities of the Toledo District v.
Belize, Judgment, Inter-Am. C.H.R., Report No. 40/04, Case 12.053 (12 Oct. 2004); Ilmari
Lansman et al. v. Finland, ICCPR Comm. No. 511/1992 (1996).

432 recommence aerial spraying in the 10 km border zone with
Ecuador . . .Ž1170.

6.65 Ecuador agrees with the UN Special Rapporteur. The obligations of due

diligence and transboundary EIA must be interpreted and applied in a

precautionary manner in order to minimise or eliminate the real and foreseeable

risk to Ecuador. This is hardly a controversial proposition. As a leading authority

has observed, “[t]he point which stands out is that some applications of the

principle, which is based on the concept of foreseeable risk to other states, are

1171
encompassed within existing concepts of state responsibilityŽ . For the same

reason, the ILC noted that the precautionary principle is already included in the

principles of prevention and prior authorisation, and in environmental impact

1172
assessment, “and could not be divorced therefromŽ . From this perspective, the

importance of the precautionary principle as a general principle is that it redefines

existing rules of international law on control of environmental risks and

conservation of natural resources and brings them into play at an earlier stage

than before. Like the UN Special Rapporteur on the Right to Health, Ecuador’s

position is that the requirements of due diligence in the circumstances of this case

1170Report of the Special Rapporteur on the Right of Everyone to the Enjoyment of the Highest
Attainable Standard of Physical and Mental Health, Paul Hunt: Preliminary Note on Mission to

Ecuador and Colombia, Addendum, para. 17, U.N. Doc. A/HRC/7/11/Add.3 (4 Mar. 2007). EM,
Vol. II, Annex 31.
1171Ian Brownlie, Principles of Public International Law 276 (6th ed., Oxford U. Press, 2003).

1172United Nations, General Assembly, Report of the International Law Commission on the Work
of its Fifty-Second Session, 1 May -9 June and 10 July - 18 August 2000, Supplement No.10, p.

128, para. 716, U.N. Doc. A/55/10 (2000).

433must be interpreted and applied with precaution in mind, given the known risks of

glyphosate, Cosmo-Flux, POEA and other chemical additives in Colombia’s

spray mixture 117, and the uncertainties involved in such a large-scale experiment

with human health and the environment. Colombia has given no answer to that

argument. It has neither acted with due diligence nor followed a precautionary

approach to the management of transboundary risk, as the following examples

show.

D. N O PRIOR N OTIFICATION

6.66 Although there have been tens of thousands of spray flights along or near

the border, save on one occasion in November 2004, no advance notification of

spraying operations likely to affect Ecuador has ever been provided to the

Government of Ecuador or to Ecuadorians living in or near the affected areas 1174.

Colombia asserts that “[a]s to advance notifications of individual missions,

Colombia was under no obligation, having regard to the evident security

concerns, to give such notificationŽ 1175. Colombia’s current EMP includes a

Communications Strategy which aims to “keep the society and community at

large informed nationally, regionally, and locally, especially the communities

117See supra Chap. 2, paras. 2.18-2.63.
1174
CCM, Chaps. 5 & 6, para. 5.39, 6.33.
1175
CCM, Chap. 6, para. 6.34.

434 1176
located in the areas of influence of the Glyphosate sprayingŽ . If the spraying

poses a risk for Colombians that can be mitigated by advance warning then it

equally poses a risk for Ecuadorians that could be mitigated by similar warnings.

Yet no mention is made of communication with Ecuador or with the communities

affected on the Ecuadorian side of the international frontier. Colombia sees such

notification as somehow “problematicŽ and seems to assume that what Ecuador

asks for is a public enquiry conducted by Colombia on Ecuadorian territory 117.

6.67 No doubt consultation with those likely to be affected would have been an

excellent policy, and Ecuador reserves the right to argue that such consultation

should have taken place 1178. But Ecuador’s argument is much simpler: what it

complains about is Colombia’s failure to provide those living on the Ecuadorian

side of the border with any advance warning of spraying operations. Whether

such warning is given directly or via the Ecuadorian government is immaterial.

In the circumstances of this case, there was a duty to ensure that advance warning

was given to those likely to be affected by spraying operations that posed a clear

1176
Resolution Nº 1054 of 30 September 2003 of the Ministry for the Environment of Colombia,
p. 190 (hereinafter “2003 Environmental Management PlanŽ). CCM, Vol. II, Annex 50.
1177
CCM, Chap. 8, para. 8.96.
1178
Notably, under Article 6 of ILO Convention 169. See infra Chap. 7, paras. 7.57 et seq.

435and known risk to public health 117. What is a risk on one side of the border is

equally a risk on the other.

E. F AILURE TO C OMPLY WITH THE INADEQUATE EMP

6.68 The EMP sets out the conditions under which the Colombian Ministry of

Environment authorised the aerial spraying programme. The point has already

been made earlier in this Chapter that no version of Colombia’s EMP directly

1180
addresses the risk of transboundary pollution affecting Ecuador . Nor has

Colombia ever consulted Ecuador regarding the sufficiency of the EMP to protect

Ecuador’s territory, people or environment. While the EMP purports to address

the environmental risks of glyphosate, it does not take into account the risks of

surfactants or other components of the spray mixture, which may present even

1181
greater human health and environmental concerns . The current EMP also

1182
permits higher flight altitudes and removes flight speed limits during spraying .

Both of these factors are important for limiting the amount of spray drift and

preventing the spray from spreading beyond the intended target areas 118. Finally,

1179Corfu Channel (United Kingdom v. Albania), Judgment, Merits, I.C.J. Reports 1949, p. 22;
Draft Articles on Prevention of Transboundary Harm, op. cit., Art. 8; EM, paras. 8.33-8.35, 8.55-

8.62.
118See supra Chap. 6, paras. 6.36-3.42.

11812003 Environmental Management Plan, op. cit., pp. 186 (proposing studies to evaluate the
impact of glyphosate on soil, water, and plants; does not address other chemical components of

the spray mixture). CCM, Vol. II, Annex 50.
118Ibid., p. 173.

118See supra Chap. 2, paras. 2.88-2.89, 2.98, 2.104-2.107.

436 1184
the requirement for an independent audit has been removed from the EMP .

These are fundamental failings. The rules governing the Colombian spray

programme are among the world’s most lenient. Some jurisdictions take the view

that aerial spraying of herbicides is simply too dangerous. They have banned the

practice 118. Those jurisdictions that do not ban spraying impose restrictions

1186
significantly stronger than those adopted by Colombia . This Court held in the

Pulp Mills case that the exercise of due diligence entails “a careful consideration

1187
of the technology to be usedŽ . In the present case, the problem is more the

failure to give careful consideration to the way the technology is used than the

technology itself, although at least one type of spray aircraft used by Colombia

was indeed unsuitable for the task, for reasons set out in the next paragraph.

Whatever the technology, a defective and inadequate set of operational

parameters cannot satisfy Colombia’s obligation of due diligence in international

law, even if the spray planes followed it to the letter in every respect.

6.69 But they did not or could not follow it, and the reality is even worse than

the inadequate EMP. Colombia claims to have taken “every careŽ to “ensure that

1184
2003 Environmental Management Plan, op. cit. CCM, Vol. II, Annex 50.
1185
Joas Report, op. cit., p. 8. ER, Vol. II, Annex 7; supra Chap. 4, paras. 4.101, 4.104.
1186See supra Chap. 4, paras. 4.104-4.114.

1187Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, p. 65, para. 223.

437spraying occurs only on Colombian territoryŽ and that no drift results 1188. This is

nonsense. Colombia concedes that operational parameters in the EMP must be

1189
complied with in order to avoid excessive drift and off-target damage . The

Counter-Memorial reaffirmed the mandatory nature of the operational parameters

and specifically said they are necessary to ensure the protection of people, plants

1190
and animals in Ecuador . Far from ensuring that “every careŽ is taken,

1191
compliance with the EMP, lax as it is, has been poor . The spray planes have

violated the speed and height restrictions within 10 kilometres of the border tens

of thousands of times. Colombia itself admits that the higher the speed and the

greater the height, the farther the spray will drift from its intended target. As

explained in detail in Chapter 2, flight data records show that Colombian aircraft

repeatedly disregarded the requirements of the EMP, in a way that virtually

ensured that spray would reach Ecuador. The aircraft flew too high, too fast and

1192
too close to the border when spraying , resulting in a herbicide mist forming

and drifting over Ecuador and onto watercourses flowing through Ecuadorian

territory. The high speed military aircraft used for spraying operations (the OV-

10 Bronco) were particularly unsuited to the task 1193, and the pilots were often

1188
CCM, Chap. 7, para. 7.16.
1189
Ibid., Chap. 7, para. 7.17.
1190
Ibid., Chap. 4, para. 4.74.
1191See supra Chap. 2, paras. 2.72-2.73.

1192See supra Chap. 2, paras. 2.89-2.106.

1193See supra Chap. 2, paras. 2.115-2.122.

438operating in hostile conditions under fire. They had every reason to fly high and

fast to avoid being shot 1194. In these conditions, spray that should have fallen as

1195
large droplets disintegrated into a fine mist, more susceptible to drift .

Sometimes the aircraft operated at night, or in unfavourable wind or climatic

1196
conditions, increasing the risk of drift . On thousands of occasions their

1197
spraying significantly exceeded the prescribed application rate . There were

1198
repeated problems of ill-discipline and incompetence among the pilots . All of

these facts are set out in detail in Chapter 2 of this Reply.

6.70 In June 2003, the Ministry of Environment fined the DNE for violating

various emergency measures imposed by the Ministry in Resolution 341 of 2001,

including the immediate requirement to carry out environmental impact

studies 1199. In a subsequent ruling, the Council of State held that the DNE was

obligated to comply with Resolution 341:

“the guidelines stated by the environmental authorities should be
followed when illicit crops are being sprayed, and not even the

slightest deviation from these should be permitted, which means
that it is therefore necessary for permanent controls to be

1194
See supra Chap. 2, paras. 2.108-2.114.
1195See supra Chap. 2, paras. 2.97-2.98.

1196See supra Chap. 2, paras. 2.144-2.154.

1197See supra Chap. 2, paras. 2.123-2.133.
1198
See supra Chap. 2, paras. 2.173-2.185.
1199
Republic of Colombia, Ministry of Environment Resolution No. 670, Whereby a Sanction is
Imposed and Other Decisions Are Made (19 June 2003). EM, Vol. II, Annex 19. See supra
Chap. 4, para. 4.65.

439 undertaken, with continuous evaluations of any effects which

might begin to appear . . . . It is nevertheless advisable to order
the Ministry of the Environment to continue to comply strictly

with the Environmental Management Plan, and furthermore to not
stop carrying out studies with a view to obtaining even more
details of the effects of the chemical compound that is used in the
1200
spraying, with verification by the National Narcotics DivisionŽ .

The flight data records show that these orders from Colombia’s highest

administrative tribunal were regularly ignored by the agencies responsible for

execution of the aerial spraying programme … just as they previously ignored the

resolutions of the Ministry of Environment.

6.71 Colombia claims to have audited compliance with the EMP. Why then

has it not made the results of those audits available to the Court? The evidence

provided by the flight data records for 2004 through 2008 and reviewed in

Chapter 2 of this Reply shows clearly that the strict compliance ordered by the

1201
Council of State in 2004 did not occur . Moreover, as Chapter 2 of this Reply

points out, the Counter-Memorial did not present the Court with any of the data

Colombia claims to have recorded 120. Colombia did not submit any of the audit

reports. In contrast, the data recorded by the spray planes and obtained by

Ecuador from the U.S. Department of State is manifestly inconsistent with the

description of the aerial spraying programme provided in the Counter-

1200State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the
Administrative Tribunal of Cundinamarca, p.11 (19 Oct. 2004) (emphasis in original). ER, Vol.
V, Annex 151.

120See supra Chap. 2, Sections II-IV.
1202
See supra Chap. 2, paras. 2.5, 2.71, 2.82, 2.154.

440Memorial 120. The conclusion is obvious: the spray programme violates an order

imposed by Colombia’s highest administrative tribunal and Colombia does

nothing to enforce either the rules laid down in the EMP or the orders of its own

courts. This is not compatible with the reasonable standard of due diligence

required by international law as set out in the Pulp Mills case. As this Court said

in that case:

“It [due diligence] is an obligation which entails not only the
adoption of appropriate rules and measures, but also a certain level

of vigilance in their enforcement and the exercise of administrative
control applicable to public and private operators, such as the
monitoring of activities undertaken by such operators, to safeguard

the rights of the other party. The responsibility of a party to the
1975 Statute would therefore be engaged if it was shown that it
had failed to act diligently and thus take all appropriate measures

to enforce its relevan1204gulations on a public or private operator
under its jurisdictionŽ .

Colombia has manifestly not taken “all appropriate measures to enforce its

relevant regulationsŽ or exercised a “level of vigilance in their enforcementŽ as

required by the Court. It is ultimately responsible for that failure.

F. B UFFER ZONES

6.72 Colombia claims that it did not spray near Ecuador, or otherwise spray in

or near vulnerable areas, including areas of human settlement, water bodies and

120See supra Chap. 2, Sections II-IV.
1204
Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, p. 58, para. 197.

441other sensitive environments. The flight data outlined in Chapter 2 show that this

claim too is false 1205. Colombia has sprayed in very close proximity to highly

sensitive areas in Ecuador … reserves set aside to protect the vulnerable

communities of the Awá and Cofán indigenous peoples living on their traditional

lands on both sides of the border 120. Only since Colombia stopped border

spraying in 2007 has the problem of toxic spray deposition drifting into Ecuador

been tackled effectively. However, Colombia has made no commitment not to

resume border spraying. Ecuador thus remains at risk of suffering further

transboundary harm unless this temporary 10 kilometre buffer zone is made

permanent.

6.73 In this Chapter, as in the Memorial, Ecuador has identified various ways …

including observance of a 10 kilometre no-spray zone adjacent to the Ecuadorian

border … in which Colombia could and should have exercised greater diligence in

conducting the spraying operation so as to eliminate or reduce the harm and the

1207
risk of harm to Ecuador . To reiterate, Ecuador’s case is not that international

law or the obligation of due diligence require in all circumstances the elimination

of all risk. It argues only that necessary precautionary measures to prevent

significant harm or the risk of such harm must be taken. Even Colombia agrees

120See supra Chap. 2, Section IV.

120See supra Chap. 2, paras. 2.170-2.179.
1207
EM, Chap. 8, paras. 8.30-8.31.

442 1208
that precautions are necessary in order to protect Ecuador , yet it has failed to

ensure that they are followed by those agencies charged with conducting the

spray operation. International law requires at a minimum that Colombia assess the

risks to Ecuador, adopt a proper EMP consistent with its due diligence

obligations, and enforce its operational requirements. Colombia has done none of

these.

6.74 Given the large scale of the spraying operations, the uncertain

composition and effects of the toxic chemicals in use, and the known risks of

aerial spraying, Ecuador is entitled in international law to expect Colombia to

1209
take the necessary steps to prevent foreseeable harm from occurring . In

Ecuador’s submission, that has always meant no spraying in border areas in

circumstances where harm to Ecuador or its people is likely to result. It is not an

unreasonable request in the circumstances, as Colombia belatedly recognized in

2007. It could have been accepted right from the beginning when Ecuador first

made the request not to spray in border areas. At the very least, it should be made

permanent, if not by Colombia itself then by order of the Court.

1208Colombia’s Ministry of Foreign Affairs assured Ecuador on 20 December 2006 that the aerial
spraying “. . . is executed under the strictest technical measures which guarantee the protection of

the environment and human health, also preventing the sprayed mixture to reach Ecuadorian
territoryŽ. Diplomatic Note from the Colombian Foreign Ministry to the Ecuadorian Embassy in
Bogotá, 20 Dec. 2006. CCM, Vol. II, Annex 26.
1209
Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay), Judgment, I.C.J.
Reports 2010, pp. 38, 55, 58, 60-61, 65, paras. 101, 187, 197, 204-205, 223.

443 G. F AILURE TO C OOPERATE AND M ONITOR

6.75 The point of cooperation in an environmental context is to help the

parties prevent or mitigate transboundary harm. The ILC Commentary to Article

4 of its draft Articles on Prevention of Transboundary Harm makes the point

cogently:

“The principle of cooperation between States is essential in
designing and implementing effective policies to prevent
significant transboundary harm or at any event to minimize the
risk thereof. The requirement of cooperation of States extends to

all phases of planning and of implementation. Principle 24 of the
Stockholm Declaration and principle 7 of the Rio Declaration
recognize cooperation as an essential element in any effective

planning for the protection of the environment. More specific
forms of cooperation are stipulated in subsequent articles. They
envisage the participation of the State likely to be affected in any

preventive action, which is indispensable to enhance the
effectiveness of any such action. The latter State may know better
than anybody else, for instance, which features of the activity in

question may be more damaging to it, or which zones of its
territory close to the border may be more affected by the
transboundary effects of the activity, such as a specially vulnerable
ecosystemŽ 1210.

6.76 Ecuador has already set out in the Memorial its arguments on the

international obligation of transboundary cooperation to manage environmental

1210
United Nations General Assembly, Report of the International Law Commission on the Work
of its Fifty-Third Session (23 April–1 June and 2 July–10 August 2001), p. 396, U.N. Doc.
A/56/10 (2001).Article 4 of the ILC Draft Articles on Prevention of Transboundary harm
provides: “States concerned shall cooperate in good faith and, as necessary, seek the assistance of
one or more competent international organizations in preventing significant transboundary harm
or at any event in minimizing the risk thereofŽ. Ibid.

444risks1211. Colombia’s response to Ecuador’s arguments on non-cooperation is

twofold. It says firstly that it had no duty to cooperate, save under Article 14 of

1212 1213
the 1988 Narcotics Convention . Secondly, it argues that it did cooperate .

6.77 Colombia asserts that the 1988 Narcotics Convention is the “explicit legal

basisŽ for cooperation on matters relating to eradication of illicit drug crops 1214.

It claims that the 1988 Narcotics Convention is a lex specialis with respect to

transborder cooperation on drug eradication, but its reading of Article 14 of the

1215
Convention is curiously fragmented . It complains that Ecuador did not

cooperate with respect to eradication measures as provided for in Article 14(3),

while at the same time discounting the reference in Article 14(2) with respect to

fundamental human rights and taking due account of the protection of the

environment 121. Colombia ignores Article 2 entirely, although this article sets

out important conditions on the measures the parties may take. To recall, Article

2(2) provides that:

“The Parties shall carry out their obligations under this Convention
in a manner consistent with the principles of sovereign equality

and territorial integrity of States and that of non-intervention in the
domestic affairs of other StatesŽ.

1211
EM, Chap. 8, paras. 8.38-8.71
1212
CCM, Chap. 8, paras. 8.113-8.121.
1213
Ibid., Chap. 8, paras. 8.105-8.112.
1214Ibid., Chap. 8, para. 8.114.

1215Ibid., Chap. 8, paras. 8.113-8.121.

1216Ibid., Chap. 8, paras. 8.117-8.119.

4456.78 It seems obvious, as explained earlier in this Chapter, that the objectives

of the 1988 Narcotics Convention were carefully framed to ensure respect for the

territorial integrity of other States, including the human rights of their citizens,

and the protection of their environments 121. In that context the cooperation

envisaged by Article 14(3) cannot be interpreted so narrowly as to exclude the

human rights and environmental concerns referred to in Article 14(2) or the

limitations prescribed by Article 2. Put another way, Article 14(2) requires that

the general law on environmental protection, including transboundary

cooperation, must be taken into account when interpreting and applying Article

1218
14(3) . The latter article is not to be read in splendid isolation from the rest of

Article 14 or from Article 2, as Colombia prefers. In Ecuador’s reading of Article

14(3), “cooperation in eradication programmes along the common frontiersŽ

necessarily includes cooperation to prevent and mitigate the likely effects on

people and environmental damage in Ecuador caused by those programmes. Any

other interpretation would be inconsistent with the respect for Ecuador’s

territorial integrity required by Article 2.

6.79 Ecuador’s case with respect to the 1988 Narcotics Convention thus

remains that Colombia neither facilitated the exchange of scientific and technical

121See supra Chap. 6, paras. 6.10-6.28.

121Vienna Convention on the Law of Treaties, Art. 31(3)(c), 1155 UNTS 331, entered into force
27 Jan. 1980; Case Concerning Pulp Mills on the River Uruguay (Argentina v. Uruguay),
Judgment, I.C.J. Reports 2010, pp. 29, 60, paras. 62, 204.

446information as required by Article 14(3)(b), nor with respect to the hazards posed

by aerial spraying along the common frontier did it “seek to cooperateŽ as

required by Article 14(3)(c).

6.80 As regards cooperation in general international law, the Counter-

Memorial discusses the Lac Lanoux case and notes that the arbitral tribunal

rejected Spain’s argument that there existed any rule of international law giving

1219
one State a right of veto over activities in another State . Ecuador has not

argued that it has or should have a veto over spraying activities within Colombia.

6.81 What Ecuador maintains is that, because of the likely transboundary

effects in Ecuador, Colombia had a duty to cooperate by consulting Ecuador and

providing information about the chemical composition of the herbicide

compounds prior to commencing its programme of border spraying operations.

Thereafter, it should have given Ecuador due warning at an appropriate time

before each operation. It should also have cooperated with Ecuador in joint

monitoring. Ecuador reiterates that case law, multilateral and bilateral treaties, the

1988 Narcotics Convention, the ILC draft Articles on Prevention of

Transboundary Harm, and Principle 19 of the Rio Declaration, as well as

elementary considerations of humanity referred to in the Corfu Channel Case, all

point to the conclusion that neighbouring States have a duty in general

121CCM, Chap. 8, para. 8.108.

447international law to cooperate in order to control and minimize the risk of

1220
transboundary harm . They must give each other prior notice of the activity,

provide adequate information about the substances used, and the risks posed to

health, property or the environment. They must consult and negotiate in good

faith in order to identify means of preventing or minimizing the risk of

transboundary harm before it occurs 1221. Colombia did none of these things

before undertaking its programme of aerial spraying in border areas in January

2000. It acted entirely unilaterally and in breach of its obligations in general

international law. As detailed in Ecuador’s Memorial, Colombia did not respond

to repeated requests for information about the chemicals in use; nor did it give

1222
Ecuador advance notice of spraying, nor has it cooperated in joint monitoring .

6.82 Colombia’s own Environmental Code provides for “reciprocal and prior

noticeŽ with bordering States regarding actions taken in one State (by the

government or private parties) that may harm the environmental rights or interests

of another State. Such communication must be made with sufficient advance

notice so that the governments involved can address the situation 1223. Colombia

1220
EM, Chap. 8, para. 8.68.
1221Ibid., Chap. 8, paras. 8.63-8.70.

1222Ibid., Chap. 3, paras 3.6-3.44.

1223Republic of Colombia, National Code of Renewable Natural Resources and Environmental
Protection, Decree 2811 of 1974, Art. 10(b) (18 Dec. 1974) (“PART II: ENVIRONMENTAL
ISSUES OF INTERNATIONAL SCOPE OR INFLUENCE . Article 10: To prevent or solve

environmental problems and regulate the use of renewable natural resources shared with
neighbouring countries and, without prejudice to existing treaties, the Government will seek to

448nevertheless failed to consult Ecuador before authorising border spraying

operations even after it was alerted to Ecuador’s very real concerns 1224. Despite

repeated requests from Ecuador 1225, Colombia failed to identify the chemicals to

be used. It failed to notify Ecuador when and where spraying would take place.

Monitoring of effects on Ecuador’s side of the border plainly requires cooperation

by both States, yet that cooperation was never forthcoming. All of this made it

impossible for Ecuador to warn the border communities likely to be affected or to

monitor the spraying and its effects. Such elementary failures are not consistent

with good faith cooperation by Colombia.

complement the existing agreements or negotiate other agreements deemed appropriate . . . (b)
The reciprocal and prior notice of environmental changes or imbalances that can originate from
works or planned projects by the governments or the peoples of the respective countries, with

sufficient time in advance so that said governments can take the appropriate action when they
consider that their rights and environmental interests may be impairedŽ). ER, Vol. V, Annex 119.
1224
EM, Chap. 3, paras. 3.6-3.22; see also, supra Chap. 3, paras. 3.7, 3.99, 3.141.
1225EM, Chap. 3, paras. 3.6-3.22. Requests sent by Ecuador referring to the Environmental Impact

Assessment, the chemical compounds used, dates and locations of future spraying operations
include: 1) Diplomatic Note 12437-47 SP/DGA/DTANC, sent from the Ministry of Foreign
Affairs of Ecuador to the Embassy of Colombia in Ecuador (24 July 2000). EM, Vol. II, Annex
36. 2) Diplomatic Note 21085 SSN/DGST, sent from the Ministry of Foreign Affairs of Ecuador

to the Embassy of Colombia in Quito (16 Feb. 2001). EM, Vol. II, Annex 38. 3) Diplomatic
Note 47839 DGAF, sent from the Ministry of Foreign Affairs of Ecuador to the Embassy of
Colombia in Quito (18 Oct. 2002). EM, Vol. II, Annex 45. 4) Diplomatic Note 68934/2003-GM,
sent from the Ministry of Foreign Affairs of Ecuador to the Ministry of Foreign Affairs of
Colombia (23 Oct. 2003). EM, Vol. II, Annex 52. 5) Diplomatic Note 75204/2003-GM, sent

from the Ministry of Foreign Affairs of Ecuador to the Ministry of Foreign Affairs of Colombia
(21 Nov. 2003). EM, Vol. II, Annex 51. 6) Diplomatic Note 4820/2004-GM, sent from the
Ministry of Foreign Affairs of Ecuador to the Ministry of Foreign Affairs of Colombia (10 Feb.
2004). EM, Vol. II, Annex 55. 7) Diplomatic Note 15839/2004-GM-VM, sent from the Ministry
of Foreign Affairs of Ecuador to the Embassy of Colombia in Quito (10 Mar. 2004). EM, Vol. II,

Annex 59. 8) Diplomatic Note 20434/2003-GM, sent from the Ministry of Foreign Affairs of
Ecuador to the Ministry of Foreign Affairs of Colombia (31 Mar. 2004). EM, Vol. II, Annex 61.

4496.83 Colombia accepts that an assessment of possible risks would not be “a

one-off exerciseŽ but would involve “keeping the situation under continuous

1226
reviewŽ . In other words, it accepts a duty to monitor the effects of its spraying

programme. In 2004, Colombia’s Council of State ordered the Ministry of Social

Protection to “conduct studies geared towards determining the impact of the

1227
chemicals glyphosate, poea, and cosmoflux on the lives of ColombiansŽ . It

also ordered the DNE to “verify the effects of aerial fumigation using glyphosate,

plus poea, plus cosmoflux for illicit crop eradication on the environmental

elements, in the areas that it has selected from those that have been sprayed, by

way of sample, and its study will include sprayed areas over varying time periods.

During this process, it will continue to perform the audit required for monitoring

1228
the effects of fumigationŽ . Colombia claims that a “careful appraisalŽ is

conducted twice a year by qualified scientists with “full access to

informationŽ 1229. Yet the evidence set out in Chapter 2 of this Reply shows how

Colombia has entirely failed to monitor the spray operation’s compliance with its

own EMP requirements 123. The “strict complianceŽ with the EMP called for by

1231
the Council of State Judgment has not been met, yet Colombia appears to have

1226
CCM, Chap. 8, para. 8.89.
1227State Council of Colombia, Claudia Sampedro and Others, Judgment on Appeal From the

Administrative Tribunal of Cundinamarca, p. 2 (19 Oct. 2004). ER, Vol. V, Annex 151.
122Ibid., p. 11, para. 4.

122CCM, Chap. 8, para. 8.90.

123See supra Chap. 2, paras. 2.88-2.154.
1231
See supra Chap. 6, paras. 6.70-6.71.

450no idea that this is the case. Either Colombia has not been monitoring the

programme and does not know it is not working, or it knows but is unwilling to

admit the reality.

6.84 Against this background, it is impossible to view the diplomatic contacts

between the two sides as meaningful cooperation. Colombia’s failure to

cooperate is a violation of its obligations in general international law, a breach of

the 1988 Narcotics Convention, and of the 1992 Convention on Biological

Diversity, as detailed in Ecuador’s Memorial 1232. For Colombia, the border

spraying operation was in substance non-negotiable until 2007, when the

unilateral decision was taken to suspend spraying within 10 kilometres of

Ecuador. The suspension was and remains a helpful development, but it

represents a fragile truce rather than a permanent solution to the problem. The

Foreign Minister of Colombia reiterated his government’s position that the

suspension of aerial spraying near Ecuador is only temporary 123. Colombia has

rejected Ecuador’s repeated entreaties to make the suspension permanent and

binding: “Colombia was not in a position to make a commitment regarding the

123EM, Chap. 8, pp. 293-319.

123EM, Chap. 3, para. 3.72.

451fumigation question, nor could it predict what decisions would be made in the

1234
future regarding this issueŽ .

Conclusions

6.85 With respect to transboundary harm, the principal source of applicable

law is general international law and applicable treaties, including, but not limited

to, the 1988 Narcotics Convention. In accordance with the law of treaties, the

1988 Narcotics Convention must be interpreted and applied taking applicable

general international law into account and in accordance with Article 14(2).

6.86 The relevant general international law is to be found, inter alia, in the ILC

draft Articles on Prevention of Transboundary Harm and in judgments of this

Court, in particular the Court’s 2010 Judgment in Pulp Mills on the River

Uruguay. The threshold of significant harm required by Article 2(a) of the ILC

articles is more than met given the risk posed by aerial spraying of a chemical

compound, known to be toxic, in border areas adjacent to human habitation,

crops, domestic animals and water supplies. Colombia is wrong to say that

Ecuador claims to be “completely immuneŽ from incidental effects of activities

carried out in Colombian territory 123. Ecuador’s evidence shows that these

activities have caused significant harm to people, property and the environment in

123Ibid.

123CCM, Chap. 8, para. 8.122(3).

452Ecuador, and that the precautionary principle is applicable when applying the

obligation of due diligence to the circumstances of this case.

6.87 Colombia has failed to take appropriate or adequate precautionary

measures to prevent or mitigate significant harm. In particular, it failed to carry

out any EIA prior to commencing spraying border areas in January 2000, or

1236
subsequently . The EMP does not constitute an EIA under international law or

1237
even under Colombian law . The failure to conduct an EIA prior to

implementation of the border spraying programme, or at all, constitutes a

violation of general international law, in accordance with this Court’s 2010

Judgment in Pulp Mills on the River Uruguay, and is additionally a violation of

Articles 2 and 14 of the 1988 Narcotics Convention.

6.88 Colombia has also failed to conduct the aerial spraying in a manner

consistent with its obligation of due diligence. Aerial spraying of glyphosate-

based herbicides is inherently hazardous to human health and livelihood and the

environment in Ecuador. In the circumstances of this case, the required standard

of diligence is readily achievable … the risk of transboundary harm from aerial

spraying can be eliminated by not spraying near the border. The EMP sets out the

operational parameters for spraying, but it provides inadequate protection against

123Supra Chap. 4, Section I and II.

123Supra Chap. 6, paras. 6.44-6.51.

453transboundary impacts, and in any event it has not been complied with by the

planes conducting the spraying operation. The failure to take adequate preventive

measures when implementing the border spraying programme, or even to enforce

the EMP, constitute violations of general international law, in accordance with

this Court’s 2010 Judgment in Pulp Mills on the River Uruguay, and additionally

violate Articles 2 and 14 of the 1988 Narcotics Convention.

6.89 Colombia has failed to cooperate in managing the transboundary risk

posed by aerial spraying, in particular by failing to consult Ecuador before

authorising the spraying operation, by failing to provide information on the

composition of the spray, by failing to give advance warning of spraying

operations, by failing to cooperate in joint monitoring, and by failing to consult

and negotiate in good faith with Ecuador once alerted to Ecuador’s very real

concerns. The failure to cooperate is a violation of general international law, of

the 1992 Biological Diversity Convention, and of Articles 2 and 14 of the 1988

Narcotics Convention.

6.90 Finally, Colombia’s violations of its international obligations have

resulted in significant harm to persons, property and the environment in Ecuador.

It is responsible in international law for this harm and is under an obligation to

make reparation as set forth in Chapter 8 of this Reply.

454 CHAPTER 7.

VIOLATIONS OF HUMAN RIGHTS AND INDIGENOUS PEOPLES’
RIGHTS Section I. Overview

7.1 In its Memorial, Ecuador made three arguments with respect to the

violation of human rights by Colombia. First, it alleged that Colombia has

violated the rights of indigenous peoples in Ecuador, in contravention of the ILO

Convention No. 169 Concerning Indigenous and Tribal Peoples in Independent

Countries, Article 27 of the 1966 International Covenant on Civil and Political

Rights (“ICCPRŽ), and Article 21 of the American Convention on Human

1238
Rights . Second, it alleged that Colombia has violated the human rights of

persons in Ecuador, including the right to life, health, private life, food and water,

property, humane treatment, a healthy environment, and information, in

contravention, inter alia, of the 1969 American Convention on Human Rights

with the 1988 Additional Protocol, the International Covenant on Economic,

Social and Cultural Rights (“ICESCRŽ), the 1979 Convention on the Elimination

of All Forms of Discrimination Against Women (“CEDAWŽ), the 1989

1239
Convention on the Rights of the Child (“CRCŽ), and the ICCPR . Finally, it

argued that human rights obligations are incorporated in the 1988 Narcotic

1240
Convention via Article 14(2) and have been violated in the same way .

123Memorial of Ecuador, Vol. I, Chap. 9, paras. 9.18-9.36 (hereinafter “EMŽ).
1239
EM, Chap. 9, paras. 9.43-9.107.
1240
EM, Chap. 8.

4577.2 In its Counter-Memorial, Colombia declares that Ecuador’s claims

concerning human and indigenous rights are unsubstantiated and “unsustainableŽ

1241
under applicable treaties or under customary international law . In general, it

argues: (1) that the “factual underpinningŽ of the claims is inconsistent with the

scientific evidence, and that the evidence of harm submitted by Ecuador is

1242
insufficient and unreliable ; (2) that the aerial spraying is not targeted at people

1243
living across the border in Ecuador ; (3) that there is no allegation of death or

serious long-term illness 1244; and (4) that the effects of herbicide pollution are so

de minimis that Colombia has no obligations under international law which would

require it to respect human rights or the rights of indigenous peoples outside its

1245
own territory . Furthermore, Colombia contests Ecuador’s allegation that

violations in three interdependent fields of international law … namely

international environmental law, international human rights law, and international

protection of indigenous peoples … may constitute an “integrated, mutually

1246
reinforcing wholeŽ . In Colombia’s view, Ecuador is supposed to substantiate

each breach independently from the other in the three different fields. Finally,

with respect to the effects on indigenous peoples, Colombia makes the same

1241
Colombia Counter-Memorial, Chap. 9, para. 9.1 (hereinafter “CCMŽ).
1242
CCM, Chap. 9, para. 9.1.
1243
CCM, Chap. 9, paras. 9.13-9.14.
1244CCM, Chap. 9, para. 9.61.

1245CCM, Chap. 9, paras. 9.22, 9.63.

1246CCM, Chap. 9, paras. 9.4-9.8.

458arguments about evidence, territoriality of obligations, and targeting 124. It also

claims that Colombia has done nothing which could amount to a denial of the

1248
rights of indigenous peoples .

7.3 Following this overview, the Chapter is divided into five sections:

▯ In Section II, Ecuador rebuts Colombia’s contentions that its actions

have not affected the human rights of the population living on the

Ecuadorian side of the border. Contrary to the impression created in

Colombia’s Counter-Memorial, all concerned stakeholders in the

matters underlying the present dispute … with the exception of the

Government of Colombia in these proceedings … share the conclusion

that spray drift has crossed the border and caused significant risks and

significant harm, not only to the natural environment and crop fields,

but also … directly and indirectly … to the human population living

across the border on Ecuadorian territory. These consequences entail

serious human rights violations for which Colombia must bear

responsibility.

▯ Section III addresses the question of the so-called “territorialityŽ of

human rights and indigenous rights. It will be seen that Colombia,

124CCM, Chaps. 7 and 9, paras. 7.178-7.186, 9.13-9.14, 9.159, 9.164-9.167,

124CCM, Chap. 9, paras. 9.165, 9.169.

459 Ecuador and all other Latin American States share a regional legal

space aimed at securing human rights protection throughout the entire

region. This reality is incompatible with Colombia’s attempt to

exclude from international legal regulation the extra-territorial effects

of activities detrimental to human rights and indigenous peoples’

rights in Ecuador, and distinguishes the inapposite authorities on

which Colombia relies.

▯ Section IV responds to Colombia’s arguments on the special status of

indigenous peoples under international law. Ecuador shows that

significant harm has been caused to indigenous communities located

on both sides of the border and to their ability to sustain a traditional

subsistence existence. As with human rights generally, Ecuador

demonstrates that the obligation to respect indigenous rights is not

territorially limited and that specific targeting of indigenous peoples is

not required for there to be a violation of international law. These

communities should have been consulted and notified before spraying

began.

▯ In Section V, Ecuador presents its views on the interrelationship

between environmental protection and human rights. The conclusion

is that the inter-relationship between unlawful damage to the human

460 environment and breach of human rights obligations cannot be

ignored.

▯ Finally, Section VI sets out a summary of conclusions to be drawn

from the previous sections.

Section II. Colombia’s Violations of Human Rights

A. A ERIAL S PRAYING H AS SERIOUSLY INJURED AFFECTED INDIVIDUALS

7.4 Colombia systematically dismisses the probative value of the evidence

provided by Ecuador to support the breach of fundamental human rights, on the

1249
basis that it lacks “independently verified expert reportsŽ or that witness

1250 1251
statements provided are “vagueŽ or of “doubtful weightŽ . Ecuador has

1252
already replied thoroughly in Chapter 3 to such accusations . To support its

criticism of the evidence submitted by Ecuador of human rights violations, which

consumes nearly 100 paragraphs of response to Ecuador’s claims of human rights

violations, Colombia provides the repeated refrain that the witnesses are

1253
“vagueŽ . In Chapter 3 of this Reply, Ecuador has demonstrated, contrary to

Colombia’s attempt to claim otherwise in the Counter-Memorial, not only the

124CCM, Chap. 9, para. 9.75.

125CCM, Chap. 9, para. 9.124.
1251
CCM, Chap. 9, para. 9.77.
1252
See supra Chap. 3, paras. 3.23-3.27, 3.34-3.46.
125See e.g. CCM, Chap. 9, paras. 9.77, 9.131.

461specificity of the witness testimonies … in terms of the appearance of the spray

mist, and the impacts on their eyes, skin, respiratory and digestive systems, crops

and livestock … but also their remarkable consistency with one another, across

different time periods and geographic locations; with the spray flight data

obtained from the U.S. Government; with the effects of glyphosate-based

herbicidal sprays; and with the labelling warnings and instructions provided by

the manufacturers of the chemical products that Colombia uses in its spray

mixtures.

7.5 Colombia seeks also to dismiss the confirming value of the reports of the

UN Special Rapporteurs on the Right to Health, the Rights of Indigenous Peoples

and the Right to Food. Colombia states that the views of the Special Rapporteur

on the Right to Food are “in no way ‘authoritative’Ž 1254. It also dismisses the

reports from this Rapporteur and the Special Rapporteur on the Rights of

Indigenous People, claiming that they “are based on allegations of individuals and

have no scientific basisŽ 1255. Similarly, it asserts that the opinion of the Special

Rapporteur on the Right to Health that there is “‘credible, reliable evidence’Ž is

merely a matter of “express[ing] his viewsŽ and “adds nothing to what he was

1256
told by his informantsŽ and is not supported by any scientific evidence .

125CCM, Chap. 9, para. 9.91.
1255
CCM, Chap. 9, para. 9.93. See also CCM, Chap. 9, para. 9.109.
1256
CCM, para. 9.132.

462Chapter 3 of this Reply addresses the value of the mission carried out by the

1257
Special Rapporteur on the Right to Health . Among other things, this expert

took witness statements and gathered scientific evidence and engaged with

Colombian authorities. The findings of other UN appointed experts, such as the

Special Rapporteur on the Rights of Indigenous Peoples, are also of comparable

rigour and independence. They all confirm Ecuador’s arguments and evidence.

7.6 Colombia’s assessment of the work of UN Special Rapporteurs

misrepresents their independent and expert nature, and it also seeks to dismiss the

evidentiary value of their reports. As explained in Chapter 3 of this Reply, the

series of statements of local people, gathered at different times, in different

locations and by different experts, including those appointed by the United

Nations, matched with the flight path data, provide systematic and consistent

evidence of the risks and the harm caused to the people living in the border

areas1258.

7.7 The record shows that, since 2000, the living conditions of the populations

residing along the Ecuadorian side of the border have been significantly affected

by Colombia’s aerial sprayings. Ecuador has provided extensive evidence from

first-hand observers, corroborating the fact that the harm is directly linked to the

125See supra Chap. 3, paras. 3.65-3.70.

125See supra Chap. 3, Sections I and II, esp. paras. 3.7, 3.38.

463spraying of toxic herbicides which repeatedly took place in direct proximity to

their homes and property.

7.8 As Colombia’s arguments on the probative value of the evidence

submitted by Ecuador have already been rebutted in Chapter 3 of this Reply, it is

not necessary to address this matter further in this Chapter1259. However, Ecuador

is bound to reaffirm in the clearest possible terms its concerns as to the serious

human consequences of Colombia’s past actions relevant to the present dispute.

First, there is no doubt that tens of thousands of spraying operations have been

conducted in direct proximity to the border. The repeated sprayings in the border

region have been consistently mentioned in all witness statements submitted to

the Court and are corroborated by the flight data now available in these

proceedings 126. Equally relevant is that nearly all witnesses personally saw or

felt the spray drift towards the Ecuadorian side of the border.

7.9 Second, the record shows that the spray drift has caused serious health

problems. Two fundamental causes can be identified: the direct contact with the

spray drift deposited directly over individuals, and the more indirect effects

resulting from damage to food and water supplies and medicinal plants. With

respect to the first cause, many witnesses on Ecuadorian soil and in direct

125See supra Chap. 3, Sections I and II, esp. paras. 3.23-3.46.

126See supra Chap. 3, Section I.

464proximity with the planes saw the spray drift towards them, after which they felt

1261
the spray on their bodies . A clear example is provided by the statement of

Witness 32 who was in his canoe as the spray fell directly on him and the

1262
surrounding water body . In this respect, the information provided by the

witnesses has not been seriously challenged, and it cannot be. As regards the

second and more indirect cause, the previous Chapters of the Reply have already

clearly established the extent of environmental damage caused to the direct living

1263
environment of the affected populations . In short, the spray drift has given

rise to serious risks and destroyed significant amounts of the subsistence crops of

the affected individuals, causing food shortages. Drinking water has been

polluted and other food such as fish or farm animals have been poisoned before

being ingested by the local populations 1264.

7.10 Apart from the fact that they saw the spray drift falling on them and their

property, all the witnesses also observed the direct consequences on their

immediate surroundings. One witness explained how his subsistence crops died

1261See, e.g., Declaration of Witness 2, 16 Jan. 2009 (hereinafter “Witness 2 DeclarationŽ). EM,

Vol. IV, Annex 190; Declaration of Witness 4, 22 Dec. 2008 (hereinafter “Witness 4
DeclarationŽ). EM, Vol. IV, Annex 192; Declaration of Witness 6, 16 Jan. 2009 (hereinafter
“Witness 6 DeclarationŽ). EM, Vol. IV, Annex 194; Declaration of Witness 11, 16 Jan. 2009
(hereinafter “Witness 11 DeclarationŽ). EM, Vol. IV, Annex 199; Declaration of Witness 28, 17
Feb. 2009 (hereinafter “Witness 28 DeclarationŽ). EM, Vol. IV, Annex 212; Declaration of

Witness 33, 19 Feb. 2009 (hereinafter “Witness 33 DeclarationŽ). EM, Vol. IV, Annex 217.
1262Declaration of Witness 32, 19 Feb. 2009 (hereinafter “Witness 32 DeclarationŽ). EM, Vol.

IV, Annex 216.
1263See supra Chap. 3, Section I.

1264See e.g., supra Chap. 3, paras. 3.11, 3.82, 3.94-3.97; see also EM, paras. 9.70-9.74.

465 1265
from top down, and not as is usual from the roots upwards . Others explained

how the sprayings have affected the areas surrounding them, observing that the

effects were strongest on the Colombian side of the border, which was directly

targeted by the spray planes 126. On the Ecuadorian side of the border the damage

was still significant as corroborated by all witnesses, and the damage diminished

as the distance from the border grew. Finally, it must be stressed that the local

populations did not have any doubt as to the origin of their symptoms. The health

symptoms that they suffered were the same each time there were sprayings along

the border.

7.11 Turning to the health consequences, these have been amply described in

the written pleadings and well-documented through scientific, medical and

witness reports. All of the witnesses who have been directly affected have

declared under oath that they subsequently, although with different degrees of

intensity, suffered health effects which correspond to the symptoms associated

with the chemicals used in the spray mixture deposited by Colombia. These

1267 1268
include notably: eye irritation , skin rashes and bumps , headaches and

126Declaration of Witness 18, 15 Jan. 2009 (hereinafter “Witness 18 DeclarationŽ). EM, Vol. IV,

Annex 204.
1266See, e.g., Declaration of Witness 1, 16 Jan. 2009 (hereinafter “Witness 1 DeclarationŽ). EM,

Vol. IV, Annex 189; Declaration of Witness 3, 17 Jan. 2009 (hereinafter “Witness 3
DeclarationŽ). EM, Vol. IV, Annex 191; Declaration of Witness 10, 19 Jan. 2009. EM, Vol. IV,
Annex 198; Declaration of Witness 19, 17 Jan. 2009 (hereinafter “Witness 19 DeclarationŽ). EM,
Vol. IV, Annex 205.
1267
See, e.g., Declaration of Witness 5, 16 Jan. 2009 (hereinafter “Witness 5 DeclarationŽ). EM,
Vol. IV, Annex 193; Declaration of Witness 8, 16 Jan. 2009 (hereinafter “Witness 8

466 1269 1270 1271
dizziness , fever , and gastrointestinal difficulties . The eyewitness

testimonies are further corroborated by medical staff confronted with recurring

DeclarationŽ). EM, Vol. IV, Annex 196; Declaration of Witness 9, 16 Jan. 2009 (hereinafter
“Witness 9 DeclarationŽ). EM, Vol. IV, Annex 197; Declaration of Witness 12, 16 Jan. 2009

(hereinafter “Witness 12 DeclarationŽ). EM, Vol. IV, Annex 200; Declaration of Witness 17, 16
Jan. 2009 (hereinafter “Witness 17 DeclarationŽ). EM, Vol. IV, Annex 203; Declaration of
Witness 20, 16 Jan.2009 (hereinafter “Witness 20 DeclarationŽ), EM, Vol. IV, Annex 206;
Declaration of Witness 22, 16 Jan. 2009 (hereinafter “Witness 22 DeclarationŽ). EM, Vol. IV,

Annex 208; Declaration of Witness 37, 19 Feb. 2009 (hereinafter “Witness 37 DeclarationŽ). EM,
Vol. IV, Annex 220; Declaration of Witness 39, 19 Feb. 2009 (hereinafter “Witness 39
DeclarationŽ). EM, Vol. IV, Annex 222.

1268See, e.g., Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 2 Declaration, op.
cit. EM, Vol. IV, Annex 190; Witness 3 Declaration, op. cit. EM, Vol. IV, Annex 191; Witness 4

Declaration, op. cit. EM, Vol. IV, Annex 192; Witness 5 Declaration. EM, Vol. IV, Annex 193;
Witness 6 Declaration, op. cit. EM, Vol. IV, Annex 194; Declaration of Witness 7, 16 Jan. 2009
(hereinafter “Witness 7 DeclarationŽ). EM, Vol. IV, Annex 195; Witness 8 Declaration, op. cit.
EM, Vol. IV, Annex 196; Witness 9 Declaration, op. cit. EM, Vol. IV, Annex 197; Witness 11

Declaration, op. cit. EM, Vol. IV, Annex 199; Witness 12 Declaration, op. cit. EM, Vol. IV,
Annex 200; Declaration of Witness 13, 15 Jan. 2009 (hereinafter “Witness 13 DeclarationŽ). EM,
Vol. IV, Annex 201; Declaration of Witness 14, 17 Jan. 2009. EM, Vol. IV, Annex 202; Witness

17 Declaration, op. cit. EM, Vol. IV, Annex 203; Witness 18 Declaration, op. cit. EM, Vol. IV,
Annex 204; Witness 19 Declaration, op. cit. EM, Vol. IV, Annex 205; Witness 22 Declaration,
op. cit. EM, Vol. IV, Annex 208; Declaration of Witness 23, 16 Jan. 2009 (hereinafter “Witness
23 DeclarationŽ). EM, Vol. IV, Annex 209; Declaration of Witness 29, 16 Jan. 2009 (hereinafter

“Witness 29 DeclarationŽ). EM, Vol. IV, Annex 213; Declaration of Witness 30, 19 Feb. 2009
(hereinafter “Witness 30 DeclarationŽ). EM, Vol. IV, Annex 214; Declaration of Witness 31, 27
Feb. 2009 (hereinafter “Witness 31 DeclarationŽ). EM, Vol. IV, Annex 215; Witness 32
Declaration, op. cit. EM, Vol. IV, Annex 216; Witness 33 Declaration, op. cit. EM, Vol. IV,

Annex 217; Declaration of Witness 34, 19 Feb. 2009 (hereinafter “Witness 34 DeclarationŽ). EM,
Vol. IV, Annex 218; Witness 37 Declaration, op. cit. EM, Vol. IV, Annex 220; Declaration of
Witness 38, 19 Feb. 2009 (hereinafter “Witness 38 DeclarationŽ). EM, Vol. IV, Annex 221;
Witness 39 Declaration, op. cit. EM, Vol. IV, Annex 222.

1269See, e.g., Witness 2 Declaration, op. cit. EM, Vol. IV, Annex 190; Witness 3 Declaration, op.

cit. EM, Vol. IV, Annex 191; Witness 5 Declaration, op. cit. EM, Vol. IV, Annex 193; Witness 8
Declaration, op. cit. EM, Vol. IV, Annex 196; Witness 9 Declaration, op. cit. EM, Vol. IV,
Annex 197; Witness 12 Declaration, op. cit. EM, Vol. IV, Annex 200; Witness 13 Declaration,
op. cit. EM, Vol. IV, Annex 201; Witness 17 Declaration, op. cit. EM, Vol. IV, Annex 203;

Witness 20 Declaration, op. cit. EM, Vol. IV, Annex 206; Witness 29 Declaration, op. cit. EM,
Vol. IV, Annex 213; Witness 34 Declaration, op. cit. EM, Vol. IV, Annex 218.
1270
See, e.g., Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 3 Declaration, op.
cit. EM, Vol. IV, Annex 191; Witness 4 Declaration, op. cit. EM, Vol. IV, Annex 192; Witness 7
Declaration, op. cit. EM, Vol. IV, Annex 195; Witness 11 Declaration, op. cit. Vol. IV, Annex

199; Witness 17 Declaration, op. cit. EM, Vol. IV, Annex 203; Witness 22 Declaration, op. cit.
EM, Vol. IV, Annex 208; Witness 29 Declaration, op. cit. EM, Vol. IV, Annex 213; Witness 34
Declaration, op. cit. EM, Vol. IV, Annex 218.

467surges of epidemics following each round of spraying that displayed the same

1272
pattern of symptoms .

7.12 This conclusion has also been reached by the UN Special Rapporteur on

the Right to Health, Mr. Paul Hunt, who expressed his serious concerns relating

to the human rights situation in the border regions affected by the sprayings, and

particularly the grave physical and mental health effects. In his opinion,

“There is credible, reliable evidence that the aerial spraying of

glyphosate along the Colombia-Ecuador border damages the
physical health of people living in Ecuador. There is also credible,

reliable evidence that the aerial spraying damages their mental
health. Military helicopters sometimes accompany the aerial
spraying and the entire experience can be terrifying, especially for

children. (Some children told me that, while they were in their
school, it was sprayed.)

This evidence is sufficient to trigger the precautionary principle.

Accordingly, the spraying should cease until it is clear that it does
not damage human health.

1271
See, e.g., Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 3 Declaration, op.
cit. EM, Vol. IV, Annex 191; Witness 4 Declaration, op. cit. EM, Vol. IV, Annex 192; Witness 5
Declaration, op. cit. EM, Vol. IV, Annex 193; Witness 7 Declaration, op. cit. EM, Vol. IV,
Annex 195; Witness 8 Declaration, op. cit. EM, Vol. IV, Annex 196; Witness 9 Declaration, op.
cit. EM, Vol. IV, Annex 197; Witness 11 Declaration, op. cit. EM, Vol. IV, Annex 199; Witness
12 Declaration, op. cit. EM, Vol. IV, Annex 200; Witness 17 Declaration, op. cit. EM, Vol. IV,
Annex 203; Witness 19 Declaration, op. cit. EM, Vol. IV, Annex 205; Witness 20 Declaration,

op. cit. EM, Vol. IV, Annex 206; Witness 22 Declaration, op. cit. EM, Vol. IV, Annex 208;
Witness 29 Declaration, op. cit. EM, Vol. IV, Annex 213; Witness 31 Declaration, op. cit. EM,
Vol. IV, Annex 215; Witness 32 Declaration, op. cit. EM, Vol. IV, Annex 216; Witness 33
Declaration, op. cit. EM, Vol. IV, Annex 217.
1272
See, e.g., Declaration of Dino Juan Sánchez Quishpe, 15 Jan. 2009. EM, Vol. IV, Annex 188;
Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223; Confederation of Indigenous
Nationalities of Ecuador (CONAIE) et al., Technical Report of the International Commission on
the Impacts in Ecuadorian Territory of Aerial Fumigations in Colombia, p. 17 (19-22 July 2001).

EM, Vol. IV, Annex 162.

468 It would be manifestly unfair to require Ecuador to prove that the
spraying damages human health because Ecuador does not have
access to essential information that is required to make that

assessment. For example, Ecuador does not know the precise
composition of the herbicide that Colombia is using. Thus,
Colombia has the responsibility to show that the spraying damages
1273
neither human health nor the environmentŽ .

Colombia challenges these conclusions by way of assertion, but provides no

evidence to contradict them 127. It still withholds the precise elements and

formulations of the various chemical mixtures it has aerially sprayed along or

near the border with Ecuador.

7.13 Colombia seeks to down play the serious effects of the spray mixture by

asserting that no evidence proving that affected populations have sought medical

attention has been submitted to the Court 127. This supposed lack of need for

medical attention would somehow underscore the benign nature of the chemical

spray’s effects on human health. Apart from the fact that medical records have

been submitted by Ecuador in the form of contemporaneous medical inquest

reports prepared by health professionals who examined victims in the days and

weeks following exposure to the spray, numerous witnesses mention that they

127U.N. Press Release, “U.N. Special Rapporteur on the Right to the Highest Attainable Standard

of Health, Paul Hunt, Ends Visit to EcuadorŽ (18 May 2007) (emphasis added). EM, Vol. IV,
Annex 185.
1274
CCM, Chap. 9, para. 9.132.
1275CCM, Chap. 7, paras. 7.133, 7.142. In paragraph 7.142, Colombia states the following: “In
spite of the severe and wide-spread symptoms allegedly suffered by such a large number of people

… a full-scale epidemic according to at least one of the witnesses … none of them seems to have
sought medical assistance, whether for themselves or for their childrenŽ. (Emphasis added).

469sought medical attention where available, even if the treatment they received was

rudimentary and not formally documented in the manner one may be accustomed

1276
to in the developed world . Thus, for instance, the affected populations in

1277
Mataje, Esmeraldas, visited the local nurse after the various spraying episodes .

One of them was so sick that she had to be transported to the Esmeraldas

1278
Hospital . Another witness explained how he had to carry sick people on his

1279
back for over five hours in order to reach the hospital at San Lorenzo .

Witnesses living within the Cofán-Bermejo Ecological Reserve recounted how

1280
they sought medical attention in the Health Centre General Farfán . A witness

in Puerto Escondido, Sucumbíos, had to bring her children to the San José Clinic

1281
in Lago Agrio . Another explained how the people in his community would

1276See, e.g., Witness 1 Declaration, op. cit. EM, Vol. IV Annex 189; Witness 2 Declaration, op.
cit. EM, Vol. IV, Annex 190; Witness 6 Declaration, op. cit. EM, Vol. IV, Annex 194; Witness 7

Declaration, op. cit. EM, Vol. IV, Annex 195; Witness 8 Declaration, op. cit. EM, Vol. IV,
Annex 196; Witness 19 Declaration, op. cit. EM, Vol. IV, Annex 205; Declaration of Witness 21,
16 Jan. 2009 (hereinafter “Witness 21 DeclarationŽ). EM, Vol. IV, Annex 207; Declaration of
Witness 27, 17 Feb. 2009 (hereinafter “Witness 27 DeclarationŽ). EM, Vol. IV, Annex 211;

Witness 30 Declaration, op. cit. EM, Vol. IV, Annex 214; Witness 32 Declaration, op. cit. EM,
Vol. IV, Annex 216; Witness 34 Declaration, op. cit. EM, Vol. IV, Annex 218; Declaration of
Witness 36, 19 Feb. 2009 (hereinafter “Witness 36 DeclarationŽ). EM, Vol. IV, Annex 219;
Witness 37 Declaration, op. cit. EM, Vol. IV, Annex 220; Witness 39 Declaration, op. cit. EM,

Vol. IV, Annex 222; Declaration of Witness 40, 20 Feb. 2009 (hereinafter “Witness 40
DeclarationŽ). EM, Vol. IV, Annex 223; Declaration of Witness 41, 20 Feb. 2009 (hereinafter
“Witness 41 DeclarationŽ). EM, Vol. IV, Annex 224.

1277See, e.g., Witness 30 Declaration, op. cit. EM, Vol. IV, Annex 214; Witness 32 Declaration,
op. cit. EM, Vol. IV, Annex 216; Witness 33 Declaration, op. cit. EM, Vol. IV, Annex 217;

Witness 34 Declaration, op. cit. EM, Vol. IV, Annex 218; Witness 37 Declaration, op. cit. EM,
Vol. IV, Annex 220; Witness 39 Declaration, op. cit. EM, Vol. IV, Annex 222.
1278
Witness 36 Declaration, op. cit. EM, Vol. IV, Annex 219.
1279
Witness 40 Declaration, op. cit. EM, Vol. IV, Annex 223.
1280See, e.g., Witness 27 Declaration, op. cit. EM, Vol. IV, Annex 211.

1281Witness 21 Declaration, op. cit. EM, Vol. IV, Annex 207.

470first go to the traditional doctor, thereafter the health promoter of the community

1282
trained in Western medicine, and if need be to the San Lorenzo Hospital . All

this medical assistance was sought in temporal proximity with the sprayings

occurring along Ecuador’s northern border. In most other cases, poorer families

could not afford to seek medical care, often hours away. This is particularly true

for the community of San Francisco 2, where the human rights damages were

particularly severe. Witness 11 expressed her despair when acknowledging the

lack of money to seek medical assistance 1283. In fact, the people of San Francisco

2 could only resort to traditional medicinal plant cures, the effects of which were

1284
impaired by the sprayings . This particular issue is addressed further below, in

the context of Ecuador’s claim relating to the violations of the rights of

indigenous peoples.

7.14 To complete this discussion on the human health effects of the aerial

spraying along Ecuador’s border, it is necessary to address what Colombia claims

to be inconsistencies or divergences among witness statements submitted to the

1285
Court . The Court should not be surprised by Colombia’s attack on the witness

statements, since they undermine Colombia’s case that there has been no harm

caused by its actions. If the witness statements are treated by the Court as

128Witness 41 Declaration, op. cit. EM, Vol. IV, Annex 224.

128Witness 11 Declaration, op. cit. EM, Vol. IV, Annex 199.
1284
See supra Chap. 3, para. 3.76-3.77. Witness 13 Declaration, op. cit. EM, Vol. IV, Annex 201.
1285
CCM, Chap. 9, paras. 9.77, 9.124, 9.131.

471probative … as Ecuador considers they should be … they constitute unchallenged

proof of the harms to human health, crops, livestock and the environment claimed

by Ecuador. Colombia has no choice other than to seek to discredit them, but it

has failed in this effort. It is not a sign of inconsistency, for example, that the

degree of harm to human health varies somewhat across time periods and

geographic locations. In fact, the contents of the spray mixture used by Colombia

varied, and some communities were hit more directly and more often than others

by the spraying. What makes the testimonies consistent, amongst other

considerations, is that the nature of the harms following spraying events is the

same … it always affects the eyes, skin, respiratory and digestive systems in

similar ways … even though the severity and duration of these symptoms felt by

different individuals sometimes varies.

7.15 Thus, in evaluating the validity of the different witness statements, the

Court is asked to take into account all relevant circumstances, most notably:

1. the fact that witnesses were affected in similar, even if not identical,

ways … this is logical given that some were in direct proximity of the

planes and the spray drift and thus felt the spray on their skin, while
others saw the drift progressively coming towards them and could not

escape, and yet others saw the activities from a distance of several

kilometres away but were nevertheless affected through damage to

their crops;

472 2. the fact that it is to be expected that different persons may react

differently even to the same dose of exposure … some may suffer

relatively mild symptoms, such as adult men in good health, others

may have stronger and especially severe reactions, such as older

persons, undernourished adults, and particularly infants with weaker
immune systems … an observation that is widely corroborated by the

witness statements where the special vulnerability of children is

frequently mentioned; and

3. the material resources available to each affected individual to react to

the sprayings differ … while some live closer to urban centres, or have

easier access to professional medical assistance, or even possess

subsistence crops in areas unaffected by the sprayings on which they

could continue to sustain their health … many of the witnesses could

not escape the direct consequences of the poisoning, or obtain medical

attention, thus being forced to rinse their bodies, to drink and cook

with contaminated water, to eat contaminated fish or subsistence

crops, or to self-medicate with contaminated medicinal plants.

7.16 It comes as no surprise that some witnesses claim to suffer from long-term

effects such as eye irritation. All these witnesses suffered from spraying

operations prior to 2005 when Colombia said it changed the composition of its

spray mix, switching from Roundup SL to GLY-41. These aspects have been

dealt with in detail in Chapter 2 of the present Reply 128. However, it must be

recalled that the U.S. Environmental Protection Agency recommended as early as

128See supra Chap. 2, paras. 2.31-2.42.

4732002 that Colombia abandon its use of the formulation then in use precisely

1287
because it could cause “irreversible eye damageŽ .

7.17 Finally, on the question of causation, Colombia argues that without any

conclusive scientific evidence no causal nexus can be established between the

1288
sprayings and the health effects reported in the witnesses’ sworn statements .

To be sure, no soil or water samples were collected immediately after spraying

events. Nor were there teams of scientists stationed in the border areas waiting

for these events so they could obtain such samples. Colombia itself made this

impractical by repeatedly failing to allow Ecuador or the border populations to

receive any advance notice of the sprayings. The remoteness of the affected

regions, and the lack of roads and other infrastructure made communication and

access to and from them especially difficult. Moreover, as Colombia well knows,

although the spray mixtures deposited along the border with Ecuador were highly

toxic, they were biodegradable in less than four weeks, meaning that no traces

1287United States Environmental Protection Agency, Office of Prevention, Pesticides, and Toxic
Substances, Report on Issues Related to the Aerial Eradication of Illicit Coca in Colombia:
Response from EPA Assistant Administrator Johnson to Secretary of State, p. 8 (Aug. 2002). ER,

Vol. III, Annex 45. And, indeed, Colombia acknowledges in a footnote of its Counter-Memorial
that it switched from Roundup SL to GLY-41 because of the inherent risk to human health, in
particular eye problems. Footnote 312 reads as follows: “As of 2005, with the purpose of avoiding
the possible effects associated with the use of the POEA surfactant contained in Roundup SL, in
particular the risk of eye irritation to workers in charge of preparing the mix at the operation sites,
the Colombian Government decided to use a new glyphosate-based formulated product, called

GLY 41Ž. CCM, para. 4.50, n. 312 (emphasis added).
1288CCM, Chap. 7, para. 7.141.

474would appear in any soil or water samples that might be collected even as little as

a month after spraying 1289.

7.18 What is remarkable on the question of causation is that all the evidence

that has been presented points in one direction. The fact that so many witnesses

and many more individuals have suffered from ill-effects merely serves to

highlight the extent of the damage produced and underscores the credibility of

Ecuador’s case. Now that Ecuador has obtained the spray flight data, it has been

able to connect temporally the sprayings with the harms testified to by the

witnesses in their immediate aftermaths and locations; this further corroborates

the witness testimonies. Also pointing in the same direction are the reports of the

various UN Special Rapporteurs; the scientific studies of the effects of glyphosate

and POEA on human health and crops; the labelling warnings and instructions

provided by the manufacturers of these products (pursuant to legal requirements

in States around the world); the banning of aerial spraying of pesticides in the

European Union and many other national jurisdictions, based on the inherent risks

of spray drift; and the spray flight data showing that Colombia’s spray pilots

1289
See e.g. Diplomatic Note DM/AL No. 25009, sent from the Ministry of Foreign Affairs of
Colombia to the Ministry of Foreign Affairs of Ecuador, p. 3 (14 July 2001) (“Its half-life in soil
is between 1 and 4 weeks at the most, and in tropical soils … such as ours … less than one week,
and then it is biodegradedŽ.). EM, Vol. II, Annex 42. See also Weller Report, p. 3. ER, Vol. II,
Annex 3; Charles A. Menzie, Ph.D. & Pieter N. Booth, M.S., Response to: “Critique of
Evaluation of Chemicals Used in Colombia’s Aerial Spraying Program, and Hazards Presented

to People, Plants, Animals and the Environment in Ecuador,” As Presented in: Counter-
Memorial of the Republic of Colombia, Appendix, pp. 25-26 (Jan. 2011) (hereinafter “Menzie &
Booth ReportŽ). ER, Vol. II, Annex 6.

475regularly violated … on tens of thousands of spray flights along or near the border

with Ecuador … the operational requirements (in terms of flight speed, altitude,

droplet size, application rate and time of day and weather conditions) that

Colombia itself deemed necessary to control spray drift.

7.19 The evidence is cumulative, in the sense contemplated by the Court when

it indicated, in its first case, that there exists “a series of facts linked together [that

1290
lead] logically to a single conclusionŽ . The symptoms observed are identical

throughout all affected areas, they correspond to those endured also on the

Colombian side of the border, they follow closely upon the precise locations of

spraying events, and they are thus clearly not the consequence of some oil

refining activity in one part of the country, or of the alleged “naturalŽ

deterioration of soil fertility as a result of so-called “slash and burnŽ

1291
agriculture . Independently of the question of the quantum of damages and

Ecuador’s capacity to substantiate all material damages invoked, which are

questions dealt with in Chapter 8, Ecuador must underscore that the persistent

repetition of spraying activities along the border notwithstanding clear objections

by Ecuador amounts to a serious breach of international human rights law

committed by Colombia, and the evidence in the record is sufficient to lead the

Court to declare such a finding.

129Corfu Channel (United Kingdom v. Albania), Judgment, Merits, I.C.J. Reports 1949, p. 18.

129CCM, Chap. 7, para. 7.161.

476 B. A ERIAL SPRAYING V IOLATES THE F UNDAMENTAL HUMAN RIGHTS OF
A FFECTED INDIVIDUALS

7.20 Colombia’s view of human rights law is peculiarly and unsustainably

narrow. It treats the right to life as if it were confined solely to cases of arbitrary

killing. This is not correct. The Inter-American Court of Human Rights has

unambiguously defined the right to life as a right that “includes not only the right

of every human being not to be deprived of his life arbitrarily, but also the right

that he will not be prevented from having access to conditions that guarantee a

1292
decent existenceŽ . It is the Inter-American Court of Human Rights, and not

1293
Ecuador’s willingness to “recycleŽ its arguments , that recognizes a connection

between a number of distinct human rights, such as the right to health and to food

and access to clean water with the right to a decent existence29. Ecuador has

demonstrated in its Memorial 129, and now even more clearly in Chapter 3, the

uniform pattern of harm caused by Colombia. As explained below, the States

Parties to the American Convention on Human Rights undertake to respect the

rights recognized herein, including the right to life, and thus including also the

right to a decent existence. For many people in border areas the cumulative effect

129Villagran Morales et al. v. Guatemala, Judgment, IACHR, Series C No. 77, para. 144 (19
Nov. 1999). See also Case of the Indigenous Community Yakye Axa v. Paraguay, Judgment,
IACHR, Series C No. 125, para. 161 (17 June 2005) (“the right to life . . . includes not only the

right of every human being not to be arbitrarily deprived of his life, but also the right that
conditions that impede or obstruct access to a decent existence should not be generatedŽ.);
UNHRC, General Comment 6 on Article 6, U.N. Doc. HRI/GEN/1/Rev.1, pp. 6-7 (29 July 1994).
1293
CCM, Chap. 9, paras. 9.63, 9.79.
1294
EM, Chap. 9, paras. 9.43-9.48.
129EM, Chap. 6.

477of persistent spraying of toxic herbicides has removed elements that provide basic

support for the enjoyment of a decent existence.

7.21 With regard to the right to a healthy environment, Colombia fails to see,

in contrast to its domestic legal system, that the right to a healthy environment is

closely related to the enjoyment of other fundamental rights. Colombia dismisses

the material contribution to the Inter-American system of the Yakye Axa Case,

which establishes the connection between the right to a healthy environment and

the right to a decent life, on the basis of its supposed non-extra-territorial

application. Colombia here confuses the normative content of the right with the

related State obligations to respect and ensure protection of those rights.

Colombia also falls into superfluous technicalities by arguing that the right

recognized in Article 24 of the Banjul Charter is not related to the right to a

healthy environment, simply because it is formulated as a right to a “satisfactory

environmentŽ 129. This is semantics that focuses on form not substance: the

decision of the African Commission on Human and Peoples Rights in the

Ogoniland Case shows that the objectives pursued by both formulations are the

same 1297.

129CCM, Chap. 9, para. 9.117.

1297EM, Chap. 9, paras. 9.80-9.82. See also Kaniye Ebeku, “The Right to a Satisfactory
Environment and the African CommissionŽ, 3 Afr. Hum. Rts. L. J. 149, 163 (2003); Justice C.
Nwobike, “The African Commission on Human and Peoples’ Rights and the Demystification of
Second and Third Generation Rights under the African CharterŽ, 1 Afr. J. Legal Stud. 129, 139

4787.22 With regard to the right to private life, Colombia decides to follow the

wording used by another regional human rights body. Referring to the López

Ostra Case in the European system, Colombia considers that, in order to affect

the right to private life, pollution needs to be “severeŽ and that in the present case

the pollution is minimal and hence cannot interfere with home or private life. But

the severity of pollution can only be measured by its actual or likely effects. In

the present case, the impact on the private and family life of those affected would

appear to be more harmful and significant over the long term than in López Ostra,

where the pollution caused foul odours rather than ill health or loss of crops and

1298
the basic means of subsistence . Colombia’s characterisation of the present

situation as “de minimis pollutionŽ grossly misrepresents the reality, which is far

(2005); Dinah Shelton, “Decision Regarding Communication 155/96 (Social and Economic
Rights Action Centre/Centre for Economic and Social Rights v. Nigeria),Ž 96 Am. J. Int’l. L. 937

(2002).
1298López Ostra v. Spain, Judgment, ECHR, Series A no. 303-C, paras. 49-51 (9 Dec. 1994):

“49. On the basis of medical reports and expert opinions produced by the Government or the
applicant (see paragraphs 18-19 above), the Commission noted, inter alia, that hydrogen sulphide

emissions from the plant exceeded the permitted limit and could endanger the health of those living
nearby and that there could be a causal link between those emissions and the applicant’s daughter's
ailment’s.

50. In the Court's opinion, these findings merely confirm the first expert report submitted to
the Audiencia Territorial on 19 January 1989 by the regional Environment and Nature Agency in
connection with Mrs. López Ostra’s application for protection of fundamental rights. Crown Counsel
supported this application both at first instance and on appeal (see paragraphs 11 and 13 above). The
Audiencia Territorial itself accepted that, without constituting a grave health risk, the nuisances in

issue impaired the quality of life of those living in the plant’s vicinity, but it held that this impairment
was not serious enough to infringe the fundamental rights recognised in the Constitution (see
paragraph 11 above).

51. Naturally, severe environmental pollution may affect individuals’ well-being and
prevent them from enjoying their homes in such a way as to affect their private and family life
adversely, without, however, seriously endangering their healthŽ.

479 1299
more serious for those affected than acknowledged by the Counter-Memorial .

If a lower level of harmful pollution qualifies as a violation of the right to private

life in López Ostra, then it follows that there is a comparable, if not more

egregious, violation of the right to private life on the present facts.

C. T ARGETING

7.23 It is not necessary for Ecuador to show that Colombia’s aerial spraying

explicitly “targetedŽ anyone in Ecuador 130. The human rights case law

concerned with pollution impacts on health and private life normally involves

1301
unintended and incidental consequences, and these are no less a violation . All

these cases have common features. First, there is some kind of nuisance … a

chemical plant, smelter, tannery, mine or waste disposal site, for example.

Second, there is a failure to take adequate preventive measures to control these

known sources of risk to life, health, private life or property. In none of the cases

are the victims “targetedŽ in any sense.

1299
CCM, Chap. 9, para. 9.142.
1300CCM, Chap. 9, paras. 9.13-9.14.

1301Maya Indigenous Communities of the Toledo District v. Belize, Judgment, Inter-Am. C.H.R.,
Report No. 40/04, Case 12.053, paras. 147-154 (12 Oct. 2004); Ilmari Lansman et al. v. Finland,

ICCPR Comm. No. 511/1992, para. 9.4 (1996); López Ostra v. Spain, Judgment, ECHR, Series A
no. 303-C, para. 58 (9 Dec. 1994); Guerra and Others v. Italy, Judgment, ECHR, Reports of
Judgments and Decisions 1998 I, para. 60 (19 Feb. 1998); Fadeyeva v. Russia [2005] ECHR 376,
para. 134; Öneryildiz v. Turkey [2004] ECHR 657; Case of Taskin and Others v. Turkey, Judgment,
ECHR (10 Nov. 2004), paras. 113-119; Tatar v Romania, no. 67021/01 ECHR (2009), para 88;
Budayeva, al. v Russia, Judgment, no. 15339/02, ECHR (2008).

4807.24 It is clear that Colombia has failed to act diligently in controlling and

monitoring the spraying operation, and it has been reckless in failing to take the

necessary measures to prevent transboundary effects. As detailed in Chapters 2,

4, and in the previous Chapter, inappropriate chemicals were used, aircraft ill-

suited for aerial spraying were employed, and the Environmental Management

Plan (“EMPŽ), which sets out the operating requirements for the spray planes,

was lax and inadequately enforced. These requirements were intended to protect

human health, food and water supplies, and the environment from harmful effects

of a highly toxic spray, including harmful effects in Ecuador. These are the kinds

of harmful impacts that the deposit of toxic herbicides will inevitably and

predictably cause if spraying is carried out carelessly or without regard for the

consequences, as has been the case. Moreover, whatever may be the position

within Colombia, it is also clear that Colombia took no steps to notify or warn

either the people residing in Ecuador’s border regions, or the Ecuadorian

authorities, in advance of the spraying. Those likely to be affected were thus

given no warning and no chance to take precautions to protect themselves from

the spray.

7.25 All of these failures by Colombia … failing to exercise diligent control

over the operations of the spray planes, failing to warn those likely to be harmed,

failing to enforce the conditions applicable to aerial spraying … are typical of the

cases on the harmful effects of pollution under all of the relevant human rights

481treaties, including the American Convention on Human Rights and the ICCPR, to

which both Ecuador and Colombia are parties. Ecuador has set out its case on all

of these issues in the Memorial and there is no need to repeat it here 1302. To

reiterate: none of the cases requires that those affected must have been “targetedŽ.

7.26 Nor can Colombia justify or excuse the spraying that has actually taken

place. The human rights case law demonstrates that States must balance the

interests of the community in eradicating drug plantations against the harm to

individual human rights 130. By failing to comply with or enforce its own EMP,

Colombia has carried out a spraying operation that disregards the harmful impact

on humans. The Inter-American Commission on Human Rights’ decision in Maya

Indigenous Community of the Toledo District v. Belize is instructive on this point.

The Commission found that:

“the State failed to put into place adequate safeguards and
mechanisms, to supervise, monitor and ensure that it had sufficient
staff to oversee that the execution of the logging concessions

would not cause1304ther environmental damage to Maya lands and
communitiesŽ .

In this respect, Colombia’s spraying programme has failed the most elementary

test of compatibility with or respect for fundamental human rights for exactly the

130EM, Chapter 9.
1303
Maya Indigenous Communities of the Toledo District v. Belize, Judgment, Inter-Am. C.H.R.,
Report No. 40/04, Case 12.053, para. 150 (12 Oct. 2004).
1304
Ibid., para. 147.

482same reasons that it fails the test of due diligence in the prevention of

transboundary harm.

Section III. The “Territoriality” of Human Rights Obligations

7.27 One of the central arguments in its Counter-Memorial is that Colombia is

under no international law obligation to respect and protect the human rights of

local populations and indigenous peoples living outside its territory or not falling

1305
under its jurisdiction . To justify this claim, Colombia relies heavily on the

Judgment of the European Court of Human Rights in Bankoviü v. Belgium 1306.

This argument is surprising since Bankoviü dealt with a situation in which the

alleged harm felt as a result of the violation occurred on the territory of a State

that was not a party to the European Convention on Human Rights. In the present

case, on the contrary, Colombia and Ecuador are both parties to the American

Convention, the ICCPR and ILO Convention No. 169. As a consequence, any

comparison with the situation of Yugoslavia at the time of the Bankoviü case is

misplaced. Moreover, as this Court observed in the provisional measures phase

of Georgia v. Russia, the question whether a human rights treaty applies extra-

territorially is essentially a question of interpretation, to be determined according

130CCM, Chap. 9, para. 9.15 et seq.

130CCM, Chap. 9, paras. 9.25-9.31.

483to the ordinary meaning and in light of the object and purpose of each treaty

1307
(Vienna Convention on the Law of Treaties, Article 31) .

7.28 As further elaborated below, Ecuador’s views on the territoriality of

human rights obligations in the context of two States within the Inter-American

juridical system and legal space are as follows:

▯ First, Colombia and Ecuador are part of a common legal space at the

regional level (un espace juridique commun) relating to the protection

of human rights and indigenous peoples.

▯ Second, from this it follows that Colombia and Ecuador are subject to

an international public order of human rights which does not allow for

loopholes in the effective protection of human rights for any part of

their populations.

▯ Third, Colombia is under an obligation not to frustrate the protection

of human rights in the regions adjacent to its borders.

130Case Concerning Application of the International Convention on the Elimination of All Forms
of Racial Discrimination (Georgia v. Russian Federation), Provisional Measures Order, I.C.J.
Reports 2008, p. 386, para. 109 (“Whereas the Court observes that there is no restriction of a

general nature in CERD relating to its territorial application; whereas it further notes that, in
particular, neither Article 2 nor Article 5 of CERD, alleged violations of which are invoked by
Georgia, contain a specific territorial limitation ; and whereas the Court consequently finds that
these provisions of CERD generally appear to apply, like other provisions of instruments of that
nature, to the actions of a State party when it acts beyond its territoryŽ.).

484In this context, Colombia’s position fails to appreciate the approach adopted in

the context of the ACHR, and other applicable treaties. Equally, as already

explained in the previous Chapter, one may also conclude that Colombia’s actions

to combat illicit drug crops without having regard for the human rights of

neighbouring populations amount to an abuse of rights under the 1988 Narcotics

1308
Convention and a violation of Articles 2 and 14(2) thereof.

A. THE SO -CALLED “T ERRITORIALITY Ž OFH UMAN R IGHTS OBLIGATIONS

7.29 To support its argument that it has no obligations under international law

to respect the human rights of neighbouring populations, Colombia resorts to a

narrow and literal interpretation of the jurisdictional clauses contained in three

principal human rights conventions. With respect to the American Convention on

Human Rights, Colombia interprets Article 1 as limiting Colombia’s obligations

to its own territory or to individuals under its jurisdiction, i.e., under its effective

control. Colombia draws these conclusions from its interpretation of the

Bankoviü decision of the European Court of Human Rights and from the

1309
Advisory Opinion of this Court in the Wall Case .

7.30 With respect to the case law of the European Court of Human Rights,

Colombia relies on the Bankoviü Case, in which the Court refused to exercise its

130See, e.g., supra Chap. 6, paras. 6.10-6.28, 6.76-6.84.

130CCM, Chap. 9, paras. 9.17-9.20, 9.25-9.32.

485jurisdiction because the contested acts … aerial bombing by NATO forces … could

not be considered as falling under the jurisdictional requirements contained in

Article 1 of the European Convention on Human Rights. Colombia asserts that

“the argument that State action could ‘affect’ human rights extraterritorially was

1310
explicitly rejected by the European Court of Human RightsŽ . That is not what

the Court in fact decided, having regard to its considerations about the European

legal space and the fact that Yugoslavia was not a part of it 1311. Moreover,

Colombia fails to realize that the Bankoviü Case turns on the particular facts, not

least that the military attacks were performed outside the regional scope of the

European Convention, as the Federal Republic of Yugoslavia was not a party to

the European Convention when the attacks occurred 1312. By contrast, Ecuador

and Colombia are parties to the American Convention and ILO Convention No.

169.

7.31 Moreover, the wording of the American Convention on Human Rights is

inconsistent with Colombia’s narrowly construed approach to territorial

interpretation. Article 1(1) of the American Convention provides that:

“The States Parties to this convention undertake to respect the
rights and freedoms recognized herein and to ensure to all persons

131CCM, Chap. 9, para. 9.26.
1311
Bankoviü et al. v. Belgium et al., Decision on Admissibility, Eur.Ct.H.R. Application No.
52207/99, para. 80 (2001).
1312
See ibid., para. 42.

486 subject to their jurisdiction the free and full exercise of those rights
and freedomsƒŽ.

The obligation to “respectŽ is not synonymous with the obligation to “ensureŽ.

Even if indigenous peoples within Ecuador are not subject to the jurisdiction of

Colombia, Colombia nevertheless has an obligation to respect their rights … an

obligation identical to the requirements of Article 14(2) of the 1988 Narcotics

1313
Convention … and Ecuador is entitled to invoke such respect. Despite the

difference in wording of the ICCPR, the same argument was accepted by the UN

Human Rights Committee. The Committee held in 1981 that “it would be

unconscionable to so interpret the responsibility under Article 2 of the Covenant

as to permit a state party to perpetrate violations of the Covenant on the territory

1314
of another state, which violations it could not perpetrate on its own territoryŽ .

That is precisely Ecuador’s argument.

7.32 The circumstances surrounding the present case thus fall within the terms

of Article 1 of the American Convention and Article 2(1) of the ICCPR, as well

as ILO Convention No. 169. To exclude from the protection offered by these

instruments acts committed in one Contracting State but which produce effects in

the territory of another Contracting State would also run counter to the object and

purpose of these instruments. In the Preamble of the American Convention, the

States Parties recognize “that the essential rights of man are not derived from

131See supra Chap. 6, paras. 6.10-6.28.

131Delta Saldias de Lopez v. Uruguay, ICCPR Comm. No. 52/1979, para. 12.3 (29 July 1981).

487one’s being a national of a certain state, but are based upon attributes of the

human personality, and that they therefore justify international protection in the

form of a convention reinforcing or complementing the protection provided by

1315
the domestic law of the American statesŽ . These States also expressed their

conviction that “the ideal of free men enjoying freedom from fear and want can

be achieved only if conditions are created whereby everyone may enjoy his

economic, social, and cultural rights, as well as his civil and political rightsŽ 1316.

Ecuador submits that “[e]xtraterritorial conduct of the States Parties contrary to

the observance of human rights enshrined in the Convention is hardly compatible

1317
with such reaffirmationŽ .

7.33 Colombia states that, in the interests of economy, it will not repeat, for

each of the human rights treaties individually discussed, its point that “various

human rights instruments, and in particular those which limit their scope to

persons ‘within’ or ‘subject’ to the jurisdiction of the Respondent State, do not

apply to the case of alleged injury caused incidentally by spray drift from lawful

activities of a State on its own territoryŽ 131. Nevertheless, it proceeds to do so.

1315American Convention on Human Rights, O.A.S. Treaty Series No. 36, 1144 UNTS 123,
preamble (18 July 1978).

1316Ibid. (emphasis added).

1317See L. Loucaides, “Determining the Extra-territorial Effect of the European Convention:
Facts, Jurisprudence and the Bankoviü CaseŽ in The European Convention on Human Rights:
Collected Essays, p. 77 (Leiden: Martinus Nijhoff Publishers, 2007).

1318CCM, Chap. 9, para. 9.49.

488However, when contesting the violation of each individual right claimed by

Ecuador, Colombia fails to demonstrate that such instruments limit their scope to

persons “withinŽ or “subjectŽ to the jurisdiction, or to otherwise prove its

point 131.

7.34 Although Colombia tries at length to argue that human rights obligations

do not apply to transboundary claims, this exercise is not carried out for each of

the nine rights on which Colombia purports to respond. It engages in rebuttal for

only five out of nine rights invoked by Ecuador. For the right to humane

treatment and the right to private life, Colombia is ready to assume that those

rights could be applicable to Colombia’s conduct 132; with regard to the right to

property and the right to information, Colombia makes no reference whatsoever

1321
to the issue of extra-territoriality .

7.35 Moreover, with regard to the rights to life, health, food, water and healthy

environment, for which it argues their non-extraterritorial application, Colombia’s

arguments are unpersuasive. Colombia states that most of these rights are

“essentially territorialŽ 132. This can only mean that at least some element of

these rights can be extra-territorial. To support its argument, Colombia cites

1319CCM, Chap. 9, paras. 9.49-9.50.

1320CCM, Chap. 9, paras. 9.130, 9.140.
1321
CCM, Chap. 9, paras. 9.119-9.125, 9.144-9.152.
1322
CCM, Chap. 9, paras. 9.64, 9.72, 9.85, 9.114.

489selectively from human rights treaties or from General Comments of the

1323
Committee on Economic, Social and Cultural Rights . It reproduces text which

1324
refers to the territorial State’s obligation to ensure those rightsowever,

Colombia generally fails to cite the relevant passages of these General

Comments 1325or articles of human right treaties, which formulate the obligation

of States to respect human rights or which declare the existence of the right under

international law. The existence of an obligation to ensure those rights by the

territorial State does not contradict the existence of an obligation to respect

human rights extra-territorially.

B. THE CONCEPTS OF A COMMON LEGAL SPACE AND AN INTERNATIONAL
P UBLIC ORDER OF H UMAN R IGHTS AT THER EGIONAL LEVEL

7.36 The preceding conclusions are reinforced by the fact that both Ecuador

and Colombia are Parties to the American Convention on Human Rights and

1323
CCM, Chap. 9, paras. 9.80, 9.87-9.89, 9.91. With regard to the right to food, Colombia cites
an excerpt of General Comment No. 12, which actually falls under the heading “implementation
at the national levelŽ. General Comment No. 12 has also other sections, such as those referring to
“normative contentŽ or to “obligations and violationsŽ, in addition to a section on “international
obligationsŽ, which refers expressly to the need to “respect the enjoyment of the right to food in

other countriesŽSee U.N. Committee on Economic, Social and Cultural Rights, General
Comment No. 12: The Right to Adequate Food (Article 11), U.N. Doc E/C.12/1999/5, para. 36 (12
May 1999) (“States parties should take steps to respect the enjoyment of the right to food in other
countriesƒŽ).
1324
CCM, Chap. 9, paras. 9.64, 9.72-9.73, 9.85-9.90.
1325
In addition to the example mentioned above on the General Comment on the Right to Food,
see also U.N. Committee on Economic, Social and Cultural Rights, General Comment 14: The
Right to the Highest Attainable Standard of Health, U.N. Doc. E/C.12/2000/4, para. 33 (11 Aug.
2000) (“The obligation to respect requires States to refrain from interfering directly or indirectly
with the enjoyment of the right to healthŽ.) (Emphasis in original).

490other relevant or applicable instruments. The object and purpose of the American

Convention is to reinforce the protection of human rights within the Americas.

As mentioned in the Memorial and clearly supported by scholars who have

1326
analysed the Inter-American human rights legal system , the American

Convention has instituted a common legal space (un espace juridique commun)

which does not allow for a vacuum in the protection of human rights within this

1327
geographical area . In that sense, the American Convention established an

international public order of human rights which prescribes that the human rights

of individuals within this common legal space must be respected. The concept of

common legal space was first developed in the case law of the European Court of

Human Rights, then adopted by the Inter-American Court of Human Rights. In

this respect, the Inter-American Court of Human Rights has adopted an extensive

interpretation of the obligations contained in the Inter-American Declaration of

Human Rights and the American Convention on Human Rights, and has resorted

frequently to direct references from the case law of the European Court of Human

Rights. As stated in Ecuador’s Memorial, both judicial institutions are

1326
EM, Chap. 9, para. 9.9.
1327Ibid. (quoting American Convention on Human Rights, Art. 1, O.A.S. Treaty Series No. 36,

1144 UNTS 123 (18 July 1978): “The States Parties to this Convention undertake to respect the
rights and freedoms recognized herein and to ensure to all persons subject to their jurisdiction the
free and full exercise of those rights and freedoms, without any discrimination. . . Ž).

491increasingly influenced by each other’s jurisprudence and a process of cross-

1328
fertilization characterizes the evolution of their case law .

1. The Inter-American Declaration of Human Rights

7.37 The extra-territorial application of the Inter-American Declaration of

1329
Human Rights was stressed in Alejandre and Others v. Cuba . The Cuban Air

Force was alleged to have shot down two civil aircraft in international air space

outside the territorial jurisdiction of Cuba. A claim was filed before the Inter-

American Commission on Human Rights by relatives of the victims on the basis

of Articles 1 (right to life) and 18 (right to a fair trial) of the Inter-American

Declaration of Rights and Duties of Man. The Commission said that it was

competent ratione materiae and ratione personae to hear the case. As to its

ratione loci jurisdiction, the Commission stated:

“The essential rights of the individual are proclaimed in the
Americas on the basis of equality and non discrimination, ‘without
distinction as to race, nationality, creed, or sex.’ Because

individual rights are inherent to the human being, all the American
states are obligated to respect the protected rights of any person
subject to their jurisdiction. Although this usually refers to

persons who are within the territory of a state, in certain instances
it can refer to extraterritorial actions, when the person is present in
the territory of a state but subject to the control of another state,

generally through the actions of that state's agents abroad. In
principle, the investigation refers not to the nationality of the

132EM, Chap. 9, para. 9.40.

132Armando Alejandre, Jr., Carlos Costa, Mario De La Pena, and Pablo Morales (Cuba), Inter-
Am. C.H.R., Report No. 86/99, Case 11.589, para. 23 (29 Sept. 1999).

492 alleged victim or his presence in a particular geographic area, but
to whether, in those specific circumstances, the state observed the
rights of a person subject to its authority and controlŽ 1330.

7.38 Likewise, in Saldaño v. Argentina, contrary to what was alleged by

1331
Colombia in its Counter-Memorial , the Commission declared:

“The Commission does not believe, however, that the term

‘jurisdiction’ in the sense of Article 1(1) is limited to or merely
coextensive with national territory. Rather, the Commission is of
the view that a state party to the American Convention may be

responsible under certain circumstances for the acts and omissions
of its agents which produce effects or are undertaken outside that
state’s own territory. This position finds support in the decisions

of European Court and Commission of Human Rights which have
interpreted the scope and meaning of Article 1 of the European

Convention for the Protection of Human Rights and Fundamental
Duties (European Convention). Article 1 of that instrument, on
which Article 1(1) of the American Convention was largely

patterned, stipulates that the high contracting parties ‘shall secure
to everyone within their jurisdiction the rights and freedoms
defined in Section 1 of this Convention’.Ž 133.

7.39 In the Saldaño case, the important point of direct relevance for Ecuador’s

argument is that the American Declaration was found to be applicable to “the acts

and omissions of its agents which produce effects or are undertaken outside that

state’s own territoryŽ 133. That is precisely the situation in the present

1330Ibid, para. 23 (emphasis added).

1331CCM, Chap. 9, paras. 9.40-9.43.
1332
Saldaño v. Argentina, Judgment, Inter-Am.C.H.R, Report No. 38/99, para. 17 (11 Mar. 1999)
(emphasis added).
1333
Ibid. (emphasis added).

493proceedings … the acts or omissions of agents of Colombia have produced harmful

effects outside Colombian territory. Consequently, the Declaration is implicated.

7.40 It should be further noted that in Coard v. United States, the Inter-

American Commission stated:

“While the extraterritorial application of the American
Declaration has not been placed at issue by the parties, the
Commission finds it pertinent to note that, under certain
circumstances, the exercise of its jurisdiction over acts with an

extraterritorial locus will not only be consistent with but required
by the norms which pertain. The fundamental rights of the
individual are proclaimed in the Americas on the basis of the

principles of equality and non-discrimination … ‘without
distinction as to race, nationality, creed or sex.’ Given that
individual rights inhere simply by virtue of a person's humanity,
each American State is obliged to uphold the protected rights of

any person subject to its jurisdiction. While this most commonly
refers to persons within a state’s territory, it may, under given
circumstances, refer to conduct with an extraterritorial locus
where the person concerned is present in the territory of one state,

but subject to the control of another state … usually through the
acts of the latter’s agents abroad. In principle, the inquiry turns
not on the presumed victim’s nationality or presence within a

particular geographic area, but on whether, under the specific
circumstances, the State observed the rights of a person subject to
its authority and controlŽ334.

7.41 If shooting down an aircraft in international airspace constitutes the

exercise of authority or control over the victims, then a fortiori spraying toxic

herbicides that foreseeably drift over the territory of another State will likewise

1334
Coard v. United States, Judgment, Inter-Am.C.H.R., Report No. 109/99, Case 10.951, para.
37 (29 Sept. 1999) (emphasis added).

494amount to the exercise of authority or control over the victims for the purposes of

applying the American Declaration extraterritorially.

2. Case Law of the Inter-American Court of Human Rights

7.42 What is true for the Inter-American Declaration is equally true for the

American Convention on Human Rights. The concept of a common legal space

prevailing among the States Parties to the Convention can be observed in the

Preamble to the American Convention, where it is stated that the signatory States

affirm “their intention to consolidate in this hemisphere, within the framework of

democratic institutions, a system of personal liberty and social justice based on

respect for the essential rights of manŽ 1335. In the Preamble, the signatory States

also recognize that:

“the essential rights of man are not derived from one’s being a
national of a certain state, but are based upon attributes of the

human personality, and that they therefore justify international
protection in the form of a convention reinforcing or
complementing the protection provided by the domestic law of the
1336
American statesŽ .

7.43 The Inter-American Court of Human Rights has retained a flexible vision

of its ratione loci jurisdiction embracing the entire space covered by all the States

133American Convention on Human Rights, preamble, O.A.S. Treaty Series No. 36, 1144 UNTS
123 (18 July 1978) (emphasis added).

133Ibid. (emphasis added).

495Parties to the American Convention on Human Rights. On that basis, the Court

affirms its jurisdiction over “the inter-American systemŽ as a whole.

7.44 In its second Advisory Opinion, The Effect of Reservations on the Entry

into Force of the American Convention on Human Rights, the Inter-American

Court of Human Rights spelled out the objective character of obligations arising

out of multilateral human rights treaties:

“The Court must emphasize, however, that modern human rights
treaties in general, and the American Convention in particular, are

not multilateral treaties of the traditional type concluded to
accomplish the reciprocal exchange of rights for the mutual benefit
of the contracting States. Their object and purpose is the
protection of the basic rights of individual human beings

irrespective of their nationality, both against the State of their
nationality and all other contracting States. In concluding these
human rights treaties, the States can be deemed to submit

themselves to a legal order within which they, for the common
good, assume various obligations, not in relation to other States,
but towards all individuals within their jurisdictionŽ1337.

7.45 More importantly, the Inter-American Court of Human Rights directly

referred to the notion of common public order developed by the European

Commission on Human Rights in Austria v. Italy, and endorsed it by affirming its

particular relevance with regard to the American Convention (“apply with even

1338
greater force to the American ConventionŽ) . Finally, the Inter-American

1337The Effect of Reservations on the Entry into Force of the American Convention on Human
Rights (Arts. 74 and 75), Advisory Opinion OC-2/82, IACHR, Series A No. 2, para. 29 (24 Sept.
1982) (emphasis added).

133Ibid. at paras. 29-31 (24 Sept. 1982).

496Court of Human Rights developed the concept of common legal space established

through the American Convention in its tenth Advisory Opinion, Interpretation of

the American Declaration of the Rights and Duties of Man:

“The evolution of the here relevant ‘inter-American law’ mirrors
on the regional level the developments in contemporary

international law and specially in human rights law, which
distinguished that law from classical international law to a
significant extent. That is the case, for example, with the duty to

respect certain essential human r1339s, which is today considered
to be an erga omnes obligationŽ .

7.46 Hence, the concepts of common legal space and public order have been

embraced by the Inter-American Court of Human Rights, which interprets its

mission so as to secure total protection of the human rights enshrined in the

American Convention throughout the entire region concerned, and to avoid a

vacuum where certain individuals cannot benefit from the system of protection.

3. The Legal Consequences Flowing from the Concepts of Common Legal Space

and Public Order of Human Rights

7.47 The situation where extra-territorial effects are produced within the

common legal space is totally different from the situation where the effects take

1340
place in a State which is not a member of that common legal space . To that

1339
Interpretation of the American Declaration of the Rights and Duties of Man within the
Framework of Article 64 of the American Convention on Human Rights, Advisory Opinion OC-
10/89, IACHR, Series A No. 10, para. 38 (14 July 1989).
1340Emmanuel Decaux distinguishes between: “la compétence extra-territoriale interne, celle

qu’un Etat exercerait à l’intérieur de l’espace commun des Parties, et la compétence extra-

497extent, the Bankoviü decision, relied on by Colombia, is simply not relevant to the

circumstances of the present case.

7.48 The American Convention on Human Rights contains two types of

obligations incumbent upon the Contracting States. On the one hand, the

Convention imposes positive obligations to secure the enjoyment of fundamental

human rights, and on the other, the Convention imposes negative obligations to

abstain from violating (or from failing to “respectŽ) the rights enshrined in the

Convention. Whereas Colombia seeks to exculpate itself by claiming that the

inhabitants in Ecuador’s border region are not specifically targeted by the

spraying of herbicide, Ecuador submits that Colombia is subject, at the very least,

to the negative obligation to abstain from infringing the human rights of the

individuals living in Ecuador. Colombia should have taken into account the

inherent risks of aerial spraying of toxic chemicals, and should have refrained

from such action along the border at least after the first official protests and

1341
requests for information expressed by Ecuador in July 2000 .

7.49 This position was also expressed by the UN Special Rapporteur on the

Right to Health, Mr. Paul Hunt, when he stated that “Colombia has a human

rights responsibility of international assistance and cooperation, including in

territoriale externe d’un Etat, en dehors de cet espace communŽ. E. Decaux, “Le territoire des
droits de l’hommeŽ, Liber Amicorum Marc-André Eissen, p. 69 (Bruxelles: Bruylant, 1995).
134See EM, Chap. 3, para. 3.6 et seq.

498health. Consequently, as a minimum, Colombia must not jeopardise the

enjoyment of the right to health in Ecuador. It must ‘do no harm’ to its

1342
neighbourŽ . Therefore, Colombia is wrong when it criticizes Ecuador’s

claims regarding violations of the American Convention, ICCPR, ICESCR, and

ILO Convention No. 169. Ecuador does not argue that Colombia has the

territorial obligation to fulfil the rights enshrined in these human rights

instruments, but Ecuador is of the firm view that, in a transboundary context,

Colombia has the negative obligation to refrain from frustrating the human rights

of populations living directly across the border in Ecuador.

7.50 As indicated in Chapter 6 of this Reply, these conclusions are also

consistent with the wording of Article 14 of the 1988 Narcotics Convention,

which provides that the “measures adopted shall respect fundamental human

1343
rightsŽ . Although Colombia is certainly entitled to combat drug cartels and to

eradicate illicit drug crops within its territory, such action can only be taken if it

respects the fundamental human rights, not only of its own population, but also of

those individuals affected by such measures in a transboundary context.

Therefore, Colombia should have refrained from aerial spraying in the border

region and should have adopted other measures indicated in Chapter 6 that would

134U.N. Press Release, “U.N. Special Rapporteur on the Right to the Highest Attainable Standard
of Health, Paul Hunt, Ends Visit to EcuadorŽ (18 May 2007) (emphasis added). EM, Vol. IV,
Annex 185.

134See supra Chap. 6, paras. 6.10-6.28

499have respected the environment and the human rights of the people living in

Ecuador.

7.51 Colombia’s interpretation of the 1988 Narcotics Convention constitutes an

abuse of right to the extent that Colombia believes that it can combat illicit drug

crops without having regard to the human rights of individuals living in the

1344
border regions across from its own territory . It would be wrong to presume

that the Contracting States to the 1988 Narcotics Convention intended to secure

respect for human rights only within the territory of the State adopting coercive

measures and not also in neighbouring States, if such measures have potentially

extra-territorial effects. This is all the more so where such effects are so serious

in their consequence.

7.52 Finally, it should be stressed that, by arguing that it has no obligations

under international law to respect the human rights of individuals living across

the border in Ecuador, Colombia renders the objective protection provided for in

the American Convention illusory. The Convention simply cannot be read as

permitting such violations to occur.

1344
The possibility of abuse of right, although not to be presumed, has been acknowledged by the
Court, and its predecessor, in various cases, including: Case of the Free Zones of Upper Savoy
and the District of Gex, Judgment, P.C.I.J. Series A/B N° 46, p. 167 (1932); Fisheries Case
(United Kingdom v. Norway), I.C.J. Reports 1951, p. 142.

500 Section IV. Breaches of the Rights of Indigenous Peoples

7.53 In its Memorial, Ecuador showed that the daily life of indigenous peoples

living on its side of the border had been particularly affected by Colombia’s aerial

spraying. Displacement of communities, interference with the use and enjoyment

of their property and traditional culture, and loss of access to and use of the

forests, including traditional medicinal plants, has all resulted from Colombia’s

1345
extensive spray programme . Ecuador claimed that Colombia’s actions in

these regards violated Article 27 of the ICCPR, Articles 4 to 7, 13 and 15 of ILO

Convention 169, and Article 21 of the American Convention 1346. In response,

Colombia makes the same arguments that it made in relation to human rights

violations. First, it denies that there is any evidence of harm resulting from aerial

1347
spraying activities taking place within Colombia . Second, it says that the

1348
aerial spraying is not targeted at indigenous peoples . Third, it says that

responsibility is territorial, and that Ecuador not Colombia is responsible in

international law for fulfilling obligations towards indigenous peoples in

Ecuador 1349. Finally, it asserts that Colombia has done nothing that could amount

to a denial of the rights of indigenous peoples 1350. Ecuador’s response to these

1345EM, Chap. 6.

1346EM, Chap. 9, paras. 9.18-9.36.
1347
CCM, Chap. 7, paras. 7.177-7.186.
1348
CCM, Chap. 9, para. 9.155.
1349
CCM, Chap. 9, paras. 9.159, 9.164-9.167, 9.169
1350CCM, Chap. 9, paras. 9.160, 9.165, 9.169.

501arguments is the same as its response to Colombia’s arguments on human rights.

However, before addressing these issues it is necessary to reiterate the special

status of indigenous peoples in international law and its relevance for the present

dispute.

A. THE SPECIAL STATUS OF INDIGENOUS P EOPLES UNDER INTERNATIONAL

LAW

7.54 The present dispute is of particular importance as it relates to violations of

the internationally protected rights of indigenous people, and not strictly

environmental harm and human rights violations in regard to the general

population. At least four different ethnic groups living along the Ecuadorian

border with Colombia have been seriously affected by the aerial sprayings: the

Awá, the Cofán, the Kichwa, and the Afro-Ecuadorian communities of

Esmeraldas. Colombia simply dismisses Ecuador’s claims based on indigenous

rights, believing that the subject merits only a short answer because of its

allegedly controversial nature. Far from being controversial, however, Colombia

has committed itself under international treaties and its own constitutional

provisions and enacted laws to respect the rights of all indigenous peoples. In

short, Colombia recognises through its own legal obligations that indigenous

peoples benefit from special protection under both international and national law:

both Ecuador and Colombia have committed themselves to promote the

502enjoyment of rights by indigenous communities, notably those living alongside

the common border.

7.55 The legal status of indigenous peoples has changed significantly over the

past four decades. The need to secure the living conditions of such human groups

has been widely acknowledged by the international community, through the

development of binding legal norms. This has been the case at the domestic level

of many States which afford special protection to indigenous groups … including

Colombia and Ecuador … and at the international level through the adoption of

international instruments recognizing the special rights of indigenous peoples. As

acknowledged by Colombia, both States involved in the present dispute are

parties to ILO Convention No. 169. This Convention provides for comprehensive

protection measures of all indigenous peoples … wherever they are located …

against interference by States. The Convention must be read in conjunction with

other fundamental human rights instruments, such as the Universal Declaration of

Human Rights, the ICESCR, the ICCPR, and other instruments on the prevention

of discrimination. The importance of the provisions of ILO Convention No. 169

was reaffirmed in 2007 through the adoption of the UN Declaration on the Rights

1351
of Indigenous Peoples .

135United Nations, General Assembly, Draft Resolution to the United Nations Declaration on the
Rights of Indigenous Peoples, U.N. Doc. A/61/L.67 (12 Sept. 2007).

5037.56 The ILO Convention provides for the protection of the fundamental

human rights of indigenous peoples and for the prohibition of discrimination.

Article 3(1) clearly indicates that “[i]ndigenous and tribal peoples shall enjoy the

full measure of human rights and fundamental freedoms without hindrance or

discriminationŽ. They benefit from the same level of international protection as

do all other human beings. In addition, however, the specific needs of indigenous

peoples have given rise to a recognition that special and additional measures of

international protection are needed. Thus, States are called upon to promote “the

full realisation of the social, economic and cultural rights of these peoples with

respect to their social and cultural identity, their customs and traditions and their

1352
institutionsŽ . Further, the Convention provides for special protection of

indigenous peoples’ property, cultures and environment 135, their social, cultural,

religious and spiritual values and practices 135, and the special importance of the

cultures and spiritual values of the peoples concerned in relationship with their

1355 1356
lands and territories and their natural resources .

7.57 Of utmost importance in this respect is the general obligation to consult in

good faith, through adequate procedures, and without discrimination, the

1352Article 2(2)(b).
1353
Article 4(1).
1354
Article 5(a).
1355Article 13.

1356Article 15.

504indigenous peoples who are likely to be affected by measures concerning their

immediate living environment. Article 6 of ILO Convention No. 169 is explicit

in stating that governments shall “consult the peoples concerned, through

appropriate procedures and in particular through their representative institutions,

whenever consideration is being given to legislative or administrative measures

which may affect them directlyŽ 135. This provision is not subject to any territorial

limitation. Equally, States adopting such measures are under the obligation to

“ensure that, whenever appropriate, studies are carried out, in co-operation with

the peoples concerned, to assess the social, spiritual, cultural and environmental

impact on them of planned development activitiesŽ 1358and such measures shall be

taken in co-operation with the peoples concerned in order to “protect and preserve

1359
the environment of the territories they inhabitŽ .

7.58 The fundamental importance of these obligations has been emphasized by

the Inter-American Court of Human Rights, in various cases cited in the

Memorial. Colombia has nothing to say about these cases. The Inter-American

Court has interpreted Article 21 of the American Convention on Human Rights

on the right to property in the light of the obligations contained in the ILO

1357Article 6(1) (emphasis added).
1358
Article 7(3).
1359
Article 7(4).

505Convention No. 169 1360. There is thus nothing controversial about the

international protection of indigenous peoples. In fact, it is widely recognized

that indigenous peoples live in very close inter-connectedness, indeed vital

1361
dependence, upon the ecosystem and the natural resources it contains .

Disruptions caused by aerial spraying have had especially strong impacts upon

the living conditions of affected communities, and therefore on the rights of

indigenous peoples.

7.59 The witness statements of affected indigenous communities corroborate

this. First, they focus more on the environmental impacts observed after the

spraying, whereas accounts of non-indigenous witnesses concentrate more on the

1362
harms caused to their crops and livestock . The detailed accounts of

1360Matter of Pueblo Indígena de Sarayaku Regarding Ecuador, Provisional Measures, IACHR,

Series E No. 21, para. 32(d) (17 June 2005); Case of the Mayagna (Sumo) Awas Tingni
Community v. Nicaragua, Judgment, IACHR, Series C No. 79, para. 83(d) (31 Aug. 2001); Case
of the Yakye Axa Indigenous Community v. Paraguay, Judgment, IACHR, Series C No. 125 paras.
127 and 130 (17 June 2005); Case of the Sawhoyamaxa Indigenous Community v. Paraguay,
Judgment, IACHR, Series C No. 146, paras. 117-119 (29 Mar. 2006); Case of the Saramaka

People v. Suriname, Preliminary Objections, Judgment, IACHR, Series C No. 172, paras. 92-93
(28 Nov. 2007).
1361
See e.g., Norman E. Whitten, Jr., Ph.D., Dr. William T. Vickers, Ph.D. & Michael Cepek,
Ph.D., Tropical Forest Cultural Ecology and Social Adaptation in the Ecuadorian Border Region
with Colombia (hereinafter “Whitten et al. ReportŽ) (Jan. 2011), pp. 3, 17, 20, 31, 49, 53. ER, Vol.
II, Annex 5.

1362Compare Witness 1 Declaration, op. cit. EM, Vol. IV, Annex 189; Witness 2 Declaration, op.
cit. EM, Vol. IV, Annex 190; Witness 4 Declaration, op. cit. EM, Vol. IV, Annex 192; Witness 5
Declaration, op. cit. EM, Vol. IV, Annex 193; Witness 7 Declaration, op. cit. EM, Vol. IV,

Annex 195; Witness 8 Declaration, op. cit. EM, Vol. IV, Annex 196; Witness 9 Declaration, op.
cit. EM, Vol. IV, Annex 197; Witness 13 Declaration, op. cit. EM, Vol. IV, Annex 201; Witness
17 Declaration, op. cit. EM, Vol. IV, Annex 203; Witness 18 Declaration, op. cit. EM, Vol. IV,
Annex 204; Witness 20 Declaration, op. cit. EM, Vol. IV, Annex 206; Witness 23 Declaration,
op. cit. EM, Vol. IV, Annex 209; Declaration of Witness 26, 17 Feb. 2009. EM, Vol. IV, Annex

210; Declaration of Witness 27, 17 Feb. 2009. EM, Vol. IV, Annex 211; Witness 30 Declaration,

506modifications in flora and fauna reflect the very close relationship of indigenous

1363
people with their land . Second, the Court will have noted that all witness

statements of indigenous peoples refer to the medicinal plants they have

traditionally relied on and how their use became ineffective, indeed dangerous,

1364
after the spray mixture had contaminated them . These two points naturally

lead to the third observation, namely that the statements of the indigenous people

show how severe the injuries they have had inflicted on them have been to their

1365
health .

op. cit. EM, Vol. IV, Annex 214; Witness 31 Declaration, op. cit. EM, Vol. IV, Annex 215;

Witness 32 Declaration, op. cit. EM, Vol. IV, Annex 216; Witness 33 Declaration, op. cit. EM,
Vol. IV, Annex 217; Witness 34 Declaration, op. cit. EM, Vol. IV, Annex 218; Declaration of
Witness 36, 19 Feb. 2009, op. cit. EM, Vol. IV, Annex 219; Witness 37 Declaration, op. cit. EM,
Vol. IV, Annex 220; Declaration of Witness 38, 19 Feb. 2009. EM, Vol. IV, Annex 221 with

Witness 39 Declaration, op. cit. EM, Vol. IV, Annex 222; Declaration of Witness 40 (hereinafter
“Witness 40 DeclarationŽ), 20 Feb. 2009, op. cit. EM, Vol. IV, Annex 223; Declaration of
Witness 41, 20 Feb. 2009 (hereinafter “Witness 41 DeclarationŽ). EM, Vol. IV, Annex 224
Declaration of Colombia Witness 2, 20 Feb. 2009 (hereinafter “Colombia Witness 2

DeclarationŽ), op. cit. EM, Vol. IV, Annex 226; Declaration of Colombia Witness 8, 4 Mar.
2009. EM, Vol. IV, Annex 231.
1363
See Witness 39 Declaration, op. cit. EM, Vol. IV, Annex 222; Witness 40 Declaration, op. cit.
EM, Vol. IV, Annex 223; Witness 41 Declaration, op. cit. EM, Vol. IV, Annex 224; Colombia
Witness 2 Declaration, op. cit. EM, Vol. IV, Annex 226; Declaration of Colombia Witness 8, 4
Mar. 2009. EM, Vol. IV, Annex 231. See also Whitten et al. Report, p. 3. ER, Vol. II, Annex 5.

1364See, e.g., Witness 29 Declaration, op. cit. EM, Vol. IV, Annex 213; Witness 31 Declaration,
op. cit. EM, Vol. IV, Annex 215; Witness 41 Declaration, op. cit. EM, Vol. IV, Annex 224;

Colombia Witness 2 Declaration, op. cit. EM, Vol. IV, Annex 226; Declaration of Colombia
Witness 10, 5 Mar. 2009. EM, Vol. IV, Annex 233. See also Whitten et al. Report, pp. 22-24, 30,
34, 52 (describing the use of medicinal plants by communities in the border region, and their
particular vulnerability to contamination). ER, Vol. II, Annex 5.

1365See Witness 39 Declaration, op. cit. EM, Vol. IV, Annex 222; Witness 40 Declaration, op. cit.

EM, Vol. IV, Annex 223; Witness 41 Declaration, op. cit. EM, Vol. IV, Annex 224.

507 B. T HE E VIDENCE OF H ARM

7.60 Colombia approaches Ecuador’s arguments on violation of the rights of

indigenous peoples in the same way that it responds to the human rights

violations: it claims that evidence is supported by vague 1366and unscientific 1367

witness statements, and that indigenous peoples live in very poor and unhealthy

1368
conditions anyway . Chapter 3 of this Reply addresses each of these

arguments. The testimonies of indigenous witnesses are specific enough to match

up with, and be corroborated by, the data obtained from the U.S. Department of

State regarding the dates and locations of Colombia’s spray flights 1369. The

indigenous testimonies are also corroborated by independent reports, based where

appropriate on scientific data137. The significance of the fragile living conditions

of local indigenous communities impacted by Colombia’s aerial spraying

operations is also discussed in Chapter 3, and in the expert report of Dr. Whitten

et al. These anthropology experts, who are intimately familiar with the

communities of Ecuador’s border region, explain that:

“[O]ne unifying characteristic of the border communities is their
heavy dependence upon the natural environment for food, shelter,

medicine, spiritual practices and other critical aspects of their
livelihoods. . . the people of the border region are inextricably

136CCM, Chaps. 7 and 9, paras. 7.133, 7.134, 7.137, 7.177-7.180, 9.124.

136CCM, Chap 7, paras. 7.181-7.182.
1368
CCM, Chap. 7, paras. 7.183-7.185.
1369
See supra Chap. 2, paras. 2.163, 2.167, 2.169, 2.175, 2.178, 2.180-2.182.
137See supra Chap. 3, Sections I(B)(1) and I(D)(1).

508 linked to their natural environment and are thus extremely
vulnerable to environmental perturbationsŽ 1371.

One particular source of vulnerability is the dependence of many indigenous

communities on “swidden agricultureŽ or “shifting cultivationŽ systems, which

rely upon a “delicate balance between the natural forest ecosystem and crops

grown for human consumptionŽ 1372. Of course, when these systems are

devastated by an herbicide that kills all plants, the people that rely on them for

1373
daily sustenance suffer terribly .

7.61 Colombia claims that Ecuador “does not explainŽ how aerial spraying in

Colombia could threaten the lifestyle of indigenous peoples in Ecuador 1374. This

is surprising considering that Ecuador devotes in Chapter 6 of its Memorial an

entire section to harm to indigenous communities, which is complemented with

another section in Chapter 9 on violation of the rights of indigenous peoples. In

the Memorial, Ecuador provides detailed accounts from independent experts and

witness statements as to the manner in which aerial spraying has damaged or

destroyed the basis for peoples’ livelihoods in several indigenous communities,

killing crops and domestic animals, polluting water, causing health problems and

1371Whitten et al. Report, op. cit., p. 3. ER, Vol. II, Annex 5.
1372
Ibid., op. cit., p. 3; see also ibid., pp. 9-11, 21, 28, 36-36, 47.
1373
Ibid., op. cit., pp. 9-11, 21, 28, 36-36, 47.
1374CCM, Chap. 9, para. 9.154.

509psychological distress, and destroying medicinal plants and plants used for

1375
traditional rituals .

7.62 As explained in the Memorial, the special connection of indigenous

peoples with their environment is recognized by international treaties such as ILO

Convention No. 169, and by decisions of the UN Human Rights Committee and

most particularly of the Inter-American Court of Human Rights 1376. The seminal

decision in the Awas Tingni Case, the text of which was referred to in the

1377
Memorial , merits restatement, since Colombia has not yet addressed it

properly:

“Indigenous groups, by the fact of their very existence, have the

right to live freely in their own territory; the close ties of the
indigenous people with the land must be recognized and
understood as the fundamental basis of their cultures, their

spiritual life, their integrity, and their economic survival. For
indigenous communities, relations to the land are not merely a

matter of possession and production but a material and spiritual
element which they must fully enjoy, even to preserve their
1378
cultural legacy and transmit it to future generationsŽ .

1375
EM, Chap. 6, paras. 6.106-6.130.
1376
EM, Chap. 9, paras. 9.13-9.38.
137EM, Chap. 9, para. 9.31.

1378Case of the Mayagna (Sumo) Awas Tingni Community v. Nicaragua, Judgment, IACHR,
Series C No. 79, para. 149 (31 Aug. 2001).

510The recent 2010 decision in the Case of the Indigenous Community Xákmok

1379
Kásek confirms this approach .

7.63 In responding to the showing of breach of treaty provisions protecting the

rights of indigenous peoples, Colombia simply ignores the evidence provided by

Ecuador. It limits itself to generalities and vague assertions.

7.64 With regard to Article 27 of the ICCPR, when addressing the right of

minorities to “enjoy their own cultureŽ, Colombia considers it “absurdŽ that aerial

spraying can be the decisive cause of indigenous peoples abandoning their

culture 138. On the contrary, however, the report by expert anthropologists

submitted with this Reply explains how many of the indigenous groups affected

by the aerial spraying programme have resided in the border region since pre-

colonial times. In particular, the Cofán are the “earliest recorded inhabitants of

the regionŽ and all of their “currently titled lands are in their ancestral

territoryŽ1381. The Awá have lived in north-western Ecuador since the time of the

Spanish conquest, when they moved to their current territory in the rugged and

biodiverse rainforest region located in Ecuador’s Esmeraldas and Carchi

1382
provinces . Moreover, the indigenous peoples of this region maintain a daily

137Case of the Indigenous Community Xákmok Kásek v. Paraguay, Judgment, IACHR, Series C

No. 125, paras. 173-178 (24 August 2010).
1380CCM, Chap. 9, para. 9.161.

1381Whitten et al. Report, op. cit., p. 18. ER, Vol. II, Annex 5.
1382
Ibid., op. cit., p. 46.

511connection to their traditional lands and environmental resources as a source of

food, shelter, medicine, and as a basis for spiritual practices 1383. As explained in

the Memorial, the UN Human Rights Committee has recognized that disrupting

the ties of indigenous peoples with their land and community can threaten their

1384
way of life and culture . As evidenced in statements of Awá, Cofán and

Kichwa witnesses, the serious adverse effects of the aerial sprayings on their

1385
traditional, and often remote, communities, has weakened their balance and

has led on occasions to their members abandoning their homes 1386.

7.65 On the violation of Article 21 of the American Convention on Human

Rights (the right to property), it is mystifying that Colombia has chosen to ignore

the significant body of jurisprudence developed by the Inter-American Court of

Human Rights on the matter. Colombia appears to believe that Article 21 refers

only to the need for indigenous peoples to have their lands recognized by the

1383Ibid., op. cit., pp. 3, 17-39, 45-49, 53.
1384
EM, Chap. 9, paras. 9.18-9.21.
1385
See EM, Chap. 6, paras. 6.114-6.115; Declaration of Maria Blanca Chancosa Sanchez, 14 Jan.
2009. EM, Vol. IV, Annex 187; Witness 26 Declaration, op. cit. EM, Vol. IV, Annex 210;
Witness 27 Declaration, op. cit. EM, Vol. IV, Annex 211; Witness 28 Declaration, op. cit. EM,
Vol. IV, Annex 212; Witness 29 Declaration, op. cit. EM, Vol. IV, Annex 213; Witness 31
Declaration, op. cit. EM, Vol. IV, Annex 215; Witness 40 Declaration, op. cit. EM, Vol. IV,

Annex 223; Witness 41 Declaration, op. cit. EM, Vol. IV, Annex 224.
1386Witness 11 Declaration, op. cit. EM, Vol. IV, Annex 199; Witness 26 Declaration, op. cit.

EM, Vol. IV, Annex 210; Witness 27 Declaration, op. cit. EM, Vol. IV, Annex 211; Witness 28
Declaration, op. cit. EM, Vol. IV, Annex 212; Witness 29 Declaration, op. cit. EM, Vol. IV,
Annex 213.

512 1387
State . Instead, as underscored by the Inter-American Court of Human Rights

in the Awas Tingni Case, the concept of property in indigenous communities has

acquired a specific meaning, centred on the group and its close ties with the

land 138. The Inter-American Court has pronounced itself in a similar fashion in a

number of later cases, the most recent of which is the Case of the Indigenous

Community Xákmok Kásek. In its decision of August 2010, the Inter-American

Court stated that this community’s cultural identity was affected through lacking

its own land and natural resources. This resulted in a violation of the right to

1389
property .

7.66 Colombia has an obligation not to frustrate the rights of indigenous

peoples in Ecuador: the only issue in this case is evidentiary, whether it has failed

to satisfy that obligation. Does aerial spraying of toxic herbicides along and near

the border have a significant adverse impact on the rights of those affected in

Ecuador? Ecuador’s answer to that question is yes, for all the reasons set out in

Chapter 3 and especially in the reports of UN Special Rapporteurs on the Right to

Health, the Right to Food, and Rights of Indigenous Peoples, as summarised

1387
CCM, Chap. 9, para. 9.169.
1388EM, Chap. 9, para. 9.31 (quoting Case of the Mayagna (Sumo) Awas Tingni Community v.

Nicaragua, Judgment, IACHR, Series C No. 79, para. 149 (31 Aug. 2001)).
1389Case of the Indigenous Community Xákmok Kásek v. Paraguay, Judgment, IACHR, Series C

No. 125, paras. 173-178 (24 August 2010).

513 1390
above . Insofar as this evidence shows that indigenous peoples within Ecuador

are harmed by Colombia’s aerial spraying, that amounts to a denial of their rights.

C. TARGETING OF INDIGENOUS P EOPLES

7.67 As with human rights law generally, it is not necessary that the activity

that interferes with the rights of indigenous peoples should have been targeted

specifically at the victims in order to constitute a violation of their rights. The

case law dealing with interference with property, natural resources, and

traditional way of life does not support Colombia’s defence to Ecuador’s claims.

For example, in Maya Indigenous Community of the Toledo District v. Belize, the

Inter-American Commission on Human Rights accepted that logging concessions

threatened long-term and irreversible damage to the natural environment on

which the petitioners’ system of subsistence agriculture depended 1391. Loss of

topsoil would prevent forest regeneration, damaging water supplies and

1392
diminishing the availability of wildlife and plants . Citing the decision of the

African Commission on Human and Peoples’ Rights in Social and Economic

Rights Action Centre v. Nigeria, the Inter-American Commission concluded that

there had been violations of the petitioners’ right to property in their ancestral

139See supra Chap. 7, paras. 7.5, 7.12, 7.49.
1391
Maya Indigenous Communities of the Toledo District v. Belize, Judgment, Inter-Am.C.H.R.,
Report No. 40/04, Case 12.053, paras. 147-148 (12 Oct. 2004).
1392
Ibid. at para. 31.

514land1393. Its final order required Belize to repair the environmental damage, and

to take measures to demarcate and protect their land in consultation with the

1394
community . At paragraph 150 it noted:

“This Commission similarly acknowledges the importance of
economic development for the prosperity of the populations of this

Hemisphere. As proclaimed in the Inter-American Democratic
Charter, ‘[t]he promotion and observance of economic, social, and
cultural rights are inherently linked to integral development,

equitable economic growth, and to the consolidation of democracy
of the states of the Hemisphere.’ At the same time, development
activities must be accompanied by appropriate and effective

measures to ensure that they do not proceed at the expense of the
fundamental rights of persons who may be particularly and
negatively affected, including indigenous communities and the

environment upon which the1395pend for their physical, cultural
and spiritual well-beingŽ .

The important point here is that the development activities to which the

Commission refers were not “targetedŽ at the indigenous peoples whose rights

were affected.

7.68 Similarly, in Ilmari Lansman et al. v. Finland, the UN Human Rights

Committee held that

“A State may understandably wish to encourage development or
allow economic activity by enterprises. The scope of its freedom
to do so is not to be assessed by reference to a margin of

appreciation, but by reference to the obligations it has undertaken
in article 27. Article 27 requires that a member of a minority shall

1393
Ibid. at paras. 147-149.
139Ibid. at para. 197.

139Ibid., para. 150.

515 not be denied his right to enjoy his culture. Thus, measures whose

impact amount to a denial of the right will not be compatible with
the obligations under article 27. However, measures that have a

certain limited impact on the way of life of persons belonging to a
minority will not necessarily amount to a denial of the right under
article 27Ž139.

The Committee concluded that Finland had taken adequate measures to minimise

the impact on reindeer herding139. Once again the activities were not specifically

targeted at indigenous peoples, but the State nevertheless had an obligation to

take adequate measures to minimise their impact. The point in the present case is

that Colombia has not taken adequate measures … or indeed any proper measures

… to prevent or minimise collateral damage to the rights of those affected in

Ecuador, even though the spraying is not aimed or targeted at indigenous peoples

per se.

D. T ERRITORIALITY OF O BLIGATIONS T OWARDS INDIGENOUS PEOPLES

7.69 Ecuador’s response on the territoriality of obligations with respect to the

rights of indigenous peoples is the same as its response to Colombia’s arguments

on human rights in general. Ecuador does not argue that Colombia has to ensure

the rights of persons within Ecuador. However, within the common legal space

that both States occupy, Colombia has a negative obligation to refrain from

frustrating the rights of indigenous populations living across the border in

1396
Ilmari Lansman et al. v. Finland, ICCPR Comm. No. 511/1992, para. 9.4 (1996).
1397
Ibid., para. 9.7 (1996Compare Lubicon Lake Band v. Canada, ICCPR Comm. No.
167/1984, paras. 32.2-33 (1990) (finding that the impact of oil and gas extraction on the
applicants’ traditional subsistence economy constituted a violation of Article 27 of the ICCPR).

516Ecuador. Article 7 of ILO Convention No. 169, Article 21 of the American

Convention on Human Rights, Article 27 of the ICCPR, and Article 29 of the

2007 Universal Declaration on Human Rights are entirely consistent with

Ecuador’s position. Any other view would be inherently destructive of the

holistic protection of indigenous peoples, such as the Awá in Ecuador and

Colombia, whose territory and living space frequently straddle international

borders, as they do in the present case 1398. The particular cross-border

vulnerability of indigenous peoples was understood by the drafters of ILO

Convention No. 169; it requires States Parties to give special attention to their

needs as social groups, not simply as individuals when they happen to reside

within the territory of one or the other State. It is therefore not surprising that

there is no provision in the ILO Convention comparable to Article 2(1) of the

ICCPR. Assuming for the sake of argument that Colombia is correct in limiting

the obligations of States under the ICCPR to “individuals within its territory and

1399
subject to its jurisdictionŽ , there is plainly no textual, contextual or purposive

basis for applying the same territorial limitation to ILO Convention No. 169. On

the contrary, that Convention applies explicitly to “tribal peoples in independent

countriesŽ and “peoples in independent countries who are regarded as

139See Whitten et al. Report, op. cit., pp. 45-46. ER, Vol. II, Annex 5.

139CCM, Chap. 9, paras. 9.16-9.36.

517indigenousƒŽ 140. There is no reference to territory or jurisdiction as the criteria

for applying the Convention.

E. C ONSULTATION AND N OTIFICATION

7.70 Under Article 6 of ILO Convention No. 169, any State planning to adopt

measures that may detrimentally affect directly the living conditions or the health

of indigenous peoples must consult with the peoples concerned through

appropriate procedures. This applies to indigenous peoples living on both sides

of the border. No such prior consultation or prior notification has ever taken

place on the Ecuadorian side of the border. In fact, Colombia persistently repeats

the mantra that it is entitled to forcefully eradicate illicit crops and that it can only

successfully implement its programme under the cover of secrecy. Article 6(2)

stipulates that “the consultations carried out in application of this Convention

shall be undertaken, in good faith and in a form appropriate to the circumstances,

with the objective of achieving agreement or consent to the proposed

1401
measuresŽ . Leaving aside the question of the need for an agreement or

consent by potentially affected indigenous communities, the wording of this

provision leaves enough room for accommodating Colombia’s security concerns

1400
Article 1(1).
1401See also Colombian Law 21 of 1991, approving ILO Convention No. 169; Claudia Rojas
Quiñonez, Esq., The Aerial Spray Program and Violations of Colombia’s Domestic Laws

Regarding the Environment and the Rights of Indigenous Peoples, paras. 134-145 (Jan. 2011)
(regarding the incorporation of ILO Convention No. 169, and its obligations, into Colombian
domestic law) (hereinafter “Rojas ReportŽ). ER, Vol. II, Annex 8.

518with the necessity … even at very short notice … to alert local populations so that

they can take necessary measures to avoid direct contact with the spray.

7.71 Further, Article 7(3) of the ILO Convention states in very clear terms

that:

“Governments shall ensure that, whenever appropriate, studies are
carried out, in co-operation with the peoples concerned, to assess
the social, spiritual, cultural and environmental impact on them of

planned development activities. The results of these studies shall
be considered as fundamental criteria for the implementation of
these activitiesŽ.

It is not necessary to dwell on the question whether the spraying operations

qualify as “planned development activitiesŽ within the meaning of this provision.

It is clear in Colombia’s rhetoric that it seeks to achieve alternative development

goals through its aerial spraying programme. Moreover, it is readily apparent

from the plain meaning of Article 7(3) that it is concerned with securing

appropriate follow-up and monitoring mechanisms to ensure that government

activities or government-authorized activities in the territories of indigenous

peoples do not detrimentally affect the social or spiritual environments of such

communities.

7.72 It will not have escaped the attention of the Court that no such monitoring

reports have been submitted to the Court by Colombia in its Counter-Memorial,

or ever been made available to Ecuador, let alone studies carried out in

519cooperation with affected indigenous communities. This is not only true in

regard to the absence of monitoring reports on potential effects on Ecuadorian

territory, it is equally true for the lack of reports pertaining to the Colombian side

of the border. Not one report was presented by Colombia on monitoring activities

along its own border in direct proximity to its spraying activities. It is obviously

not enough to conduct impact studies or produce monitoring reports in regard to

totally disconnected regions somewhere else in Colombia. It is equally

insufficient to rely on random monitoring missions, because in order to be

scientifically valid they need to be carried out directly or shortly after the

sprayings take place. As such, Colombia is under a duty to assess the

transboundary impacts of its planned activities and to conduct regular monitoring

missions during the months where the sprayings occurred. It has failed to meet

this obligation.

7.73 Thus, in addition to the human rights violations suffered by the indigenous

people on the Ecuadorian side of the border, Colombia is in violation of its

international law obligations under ILO Convention No. 169. It should have

consulted and informed potentially affected indigenous communities … in the

present case including the representatives of the Awá, Cofán, Kichwa and Afro-

Ecuadorian communities … and conducted meaningful monitoring missions in

order to ensure that its actions did not go beyond what Colombia assumed to be

520the best-case scenario. These actions … or inactions … violate ILO Convention

No. 169.

7.74 The right of effective participation of indigenous communities in the

decision-making process when governmental measures are likely to affect them

has been expressly recognized by the Constitutional Court of Colombia on

1402
various occasions . The Court ruled in particular that the mechanism of prior

consultation of indigenous peoples is an integral part of the fundamental right to

1403
participate in the decision-making process . This finding has been repeatedly

1404
affirmed by Colombia’s Constitutional Court . Of particular importance for

1402
Republic of Colombia, Constitutional Court, Triviño et al., Judgment SU-039/97, p. 1 (3 Feb.
1997) The Court held the following: “[I]t is provided for, when the exploitation of natural
resources in indigenous territories is attempted, the communities’ participation in the ultimately
adopted decisions to authorize said exploitation. In this manner, the communities’ fundamental

right to preserve their referenced integrity is guaranteed and made effective through exercise of
another right that also possesses a fundamental nature, in terms of Article 40, paragraph 2 of the
Constitution, which is the right to the communities’ participation in the referenced decisionsŽ.
ER, Vol. V, Annex 128. See also Rojas Report, op. cit., paras. 134-145 (discussing indigenous
law in Colombia). ER, Vol. II, Annex 8.

1403Republic of Colombia, Constitutional Court, Triviño et al., Judgment SU-039/97, p. 1 (3 Feb.

1997) (“ƒ the participation of the indigenous communities in decision that may affect them
relating to the exploitation of natural resources, is noteworthy in that the mentioned participation
through the mechanism of consultation acquires the connotation of a fundamental right, since a
basic instrument is created to preserve the ethnic, social, economic and cultural integrity of the
indigenous communities and thus, to guarantee their continuing existence as a social groupŽ.) ER,

Vol. V, Annex 128. See also Rojas Report, op. cit., para. 147. ER, Vol. II, Annex 8.
1404
See, e.g., Constitutional Court of Colombia, Judgment T-428 (1992); Constitutional Court of
Colombia, Judgment T-405 (1993); Constitutional Court of Colombia, Judgment T-007 (1995).
For subsequent instances, see: Constitutional Court of Colombia, Judgment C-169 (2001). See
also Republic of Colombia, Constitutional Court, Urueta Rojas., Judgment C-418/02 (28 May
2002) (“For purposes of the resolution of the present process, it is relevant to highlight that

participation in itself reaches the level of a fundamental right which the State must assure and
facilitate for “allŽ, as an essential State aim, in the context of decisions that affect them and their
economic, political, administrative and cultural life. At the same time, participation is established
as an indispensable and irreplaceable tool for the effectiveness other recognized constitutional

521present purposes is the petition filed by the Organisation of Indigenous Peoples of

the Colombian Amazon (“OPIACŽ) seeking by way of temporary injunction the

protection of the right to life, identity, and cultural integrity, to free development

1405
of personality and due process affected by the aerial spraying program . The

Organisation protested against the fact that Colombia was carrying out its aerial

spraying programme without having consulted or notified the affected indigenous

communities. In this case, the Constitutional Court related in detail the evolution

in international law of the protection of indigenous peoples, the manner in which

indigenous rights have been incorporated into the Colombian legal order, and the

development of the Court’s jurisprudence in this respect.

7.75 With respect to the obligation of prior consultation and its relation to the

ILO Convention, the Colombian Constitutional Court ruled as follows:

“It is of particular importance in the present case to refer to ILO
Convention No. 169, specifically, the right of indigenous and tribal

peoples to participate in prior consultation in accordance with the
Constitution and constitutionality block and pursuant to the
dispositions in articles 93 and 94 of the constitutional system, not

only because the instrument containing the provision is from the

rights, whether or not they possess a fundamental nature. ƒ The indigenous communities’ right to
participation as a fundamental right is supported by Convention number 169, approved by Law 21
of 1991. This Convention is aimed at ensuring the rights of indigenous peoples to their respective
territories and the protection of their cultural, social and economic values, as a means to assure

their survival as human groupsŽ.). ER, Vol. V, Annex 142. See also, Rojas Report, op. cit., para.
147. ER, Vol. II, Annex 8.
1405Constitutional Court of Colombia, Judgment SU-383/03 (13 May 2003) (summarized in ILO,

Application of Convention No. 169 by Domestic and International Courts in Latin America: A
Casebook, pp. 87-97 (Geneva: ILO, 2009)). See also Rojas Report, paras. 130, 137, 150-155. ER,
Vol. II, Annex 8.

522 International Labour Organization and sets out the labour rights of
these peoples in article 53 of the Constitution but also i) because

the participation of the indigenous communities in decisions taken
in respect of the natural resources in their territories is set out in
article 330 of the Constitution, and this cannot be understood as

the negation of the right of these peoples to be consulted in other
aspects inherent to their subsistence as a recognisable community
pursuant to article 94 of the Constitution, ii) because said

Convention is the most recognized instrument against the
discrimination that is suffered by indigenous and tribal peoples, iii)
because the right of indigenous peoples to be consulted prior to

administrative and legislative decisions that directly affect them is
a measure of affirmative action that the international community
has adopted and recommended to combat the origins, causes,

forms and modern manifestation of racism, racial discrimination,
xenophobia, and the related forms of intolerance that affect the
indigenous and tribal peoplesŽ 140.

And the Constitutional Court went on to state:

“Thus, in line with ILO Convention No. 169, the consultations
ordered cannot be understood as a mere formality, given that

carrying them out in good faith means that the indigenous and
tribal peoples of the Colombian Amazon be informed about the
content of the Programme that is taking place in their territories in

order to obtain their consent on the impact of the measures1407their
habitat and on their cognitive and spiritual frameworkŽ .

7.76 It is thus clear that Colombia has not only failed to inform or consult the

Government of Ecuador or the populations living on the Ecuadorian side of the

1406Ibid. Translation taken from ILO, Application of Convention No. 169 by Domestic and
International Courts in Latin America: A Casebook, p. 94 (Geneva: ILO, 2009) (internal citation
omitted). See also Rojas Report, op. cit., paras. 150-155 (discussing this ruling). ER, Vol. II,
Annex 8.

140Ibid. at p. 96. See also ibid., paras. 150-155 (discussing this ruling). ER, Vol. II, Annex 8.

523border, but has manifestly also failed to apply ILO Convention No. 169 to its own

indigenous population 140.

7.77 Finally, with regard to transboundary cooperation, it is plain that

Colombia has also violated obligations deriving from a bilateral agreement of

November 2002 relating to transboundary cooperation in the so-called Zonas de

Integración Fronteriza (Border Integration Zones) 1409. In pursuance of a

Decision of the Andean Council of Foreign Ministers of June 2001 calling for the

establishment of border zones in which neighbouring States would cooperate with

1410
a view to promote sustainable development , Colombia proposed to Ecuador,

by way of a diplomatic note, that certain border zones be designated by both

1411
States . Ecuador replied positively and thus, by an exchange of notes

completed in November 2002, the provinces of Putumayo and Nariño in

Colombia as well as the provinces of Sucumbíos, Carchi and Esmeraldas in

Ecuador were designated as Zonas de Integración Fronteriza 1412. As will be

outlined further below, Colombia also acted in pursuance of its national

1408
See Rojas Report, op. cit., paras. 146-160, 169-173 (describing the Colombian government’s
non-compliance with internal regulations regarding indigenous rights). ER, Vol. II, Annex 8.
1409
Andean Community, Border Integration Zone Colombia-Ecuador, Diplomatic Notes
DM/DDF 44552 & 54679/02 GM/DGAF, Official Gazette of Agreements of Cartagena, No. 888
(21 Jan. 2003). ER, Vol. IV, Annex 101.
1410
Andean Community, Decision 501 Border Integration Zone in the Andean Community,
Official Gazette of Agreements of Cartagena, No. 680 (28 June 2001). ER, Vol. IV, Annex 100.
1411
Andean Community, Border Integration Zone Colombia-Ecuador, Diplomatic Notes
DM/DDF 44552 & 54679/02 GM/DGAF, Official Gazette of Agreements of Cartagena, No. 888
(21 Jan. 2003). ER, Vol. IV, Annex 101.

1412Ibid.

524legislation for the development of border regions, Law 191 of 1995, which

includes as a main objective the respect for human rights and the protection of

1413
indigenous peoples living in these regions . Colombia and Ecuador thus

agreed, as proposed by the above-mentioned Decision of the Andean Council of

Foreign Ministers, to cooperate in these border regions.

7.78 Set in this context, it is also significant that Colombia’s domestic law …

1414
including under its own Constitution … accord special recognition for the

needs of indigenous peoples, a point on which Colombia’s Counter-Memorial is

tellingly silent. In 1991, Colombia enacted the current Constitution, further

1415
strengthening the protection of indigenous rights . Since then, various laws

1416
have granted specific protection to the rights of indigenous peoples .

Significantly, Law 21 of 1991 approved ILO Convention No. 169 and

incorporated it into the national legal order 1417. The Colombian Constitutional

Court has since confirmed that the ILO Convention establishes a principal legal

1413Republic of Colombia, National Congress, Law 191 of 1995 (23 June 1995). ER, Vol. V,
Annex 125.

1414See Political Constitution of Colombia, Arts. 7, 68(5), 70(2), 246 and 330 (1991). See also,
Rojas Report, op. cit., paras. 134-145. ER, Vol. II, Annex 8.

1415See Rojas Report, op. cit., paras. 134-145. ER, Vol. II, Annex 8.

1416See ibid.
1417
Colombian Law 21 of 1991, approving ILO Convention No. 169. See Rojas Report, op. cit.,
paras. 134-145. ER, Vol. II, Annex 8.

525source for the domestic legislation relating to indigenous rights 1418. These laws

recognise greater autonomy for indigenous communities as regards the territorial

and political management of their lands and natural resources, and establish better

participatory rights in decision-making processes that are likely to affect their

interests and rights. It appears that these domestic norms were not complied with

1419
in authorising the aerial spraying programme . Relatedly, Colombia has

committed itself to providing particular attention and assistance to indigenous

peoples living in the border regions with Ecuador. In 1995, Colombia adopted

Law 191 of 1995, relating to its border regions: this sought, inter alia, to promote

the protection and development of indigenous peoples, and recognised a right of

contact with indigenous peoples living across the border in other neighbouring

1420
countries . If nothing else, this law recognises and reflects the transboundary

nature of the obligations imposed upon Colombia by ILO Convention No. 169, as

1418Republic of Colombia, Constitutional Court, Molina, Judgment C-401/05, paras. 17-22 (14

Apr. 2005) (holding, in conformity with Article 53(4) of the 1991 Constitution, “as a general
matter, all these [labour] conventions acquire the nature of legal, binding standards in internal
law due to the simple fact of their respective ratification, without the necessity of promulgating
new laws to incorporate its specific content into the country’s legal framework or its
development.Ž and that international human rights treaties that have been ratified by Colombia are

a principal source forming part of the so-called “constitutionality block” (“bloque de
constitucionalidadŽ.). ER, Vol. V, Annex 153. See also Rojas Report, op. cit., paras. 143-144.
ER, Vol. II, Annex 8.
1419
See Rojas Report, op. cit., paras. 146-160, 169-173 (describing the Colombian government’s
non-compliance with internal regulations regarding indigenous rights). ER, Vol. II, Annex 8.
1420
Republic of Colombia, National Congress, Law 191 of 1995, Arts. 3 and 5 (23 June 1995).
ER, Vol. V, Annex 125.

526well as the particular geographical, environmental, cultural and socioeconomic

1421
characteristics of the area , and contradicts Colombia’s territorial arguments.

7.79 It is submitted that, by implementing the programme of spraying toxic

pesticides affecting both the Ecuadorian and Colombian border provinces,

Colombia has violated its obligations created by the exchange of notes to

cooperate with Ecuador in the positive development of these border zones. Such

violation is further confirmed by Colombia’s domestic laws establishing special

protection for indigenous peoples.

Section V. Relationship Between the Protection of the Environment and the
Protection of Human and Indigenous Rights

7.80 Colombia’s argument that the interrelationship between environmental

law and human rights law has to be construed in the light of the principle of

specialty as applied by the ICJ in the Nuclear Weapons Case is legally

unfounded. According to Colombia, “[a] new set of norms and balances

concerning transboundary harm is not to be ‘deduced from the terms of the

Covenant itselfŽ, when international law already lays down the relevant

1421
Republic of Colombia, National Congress, Law 191 of 1995, Art. 4(c) (23 June 1995)
(defining Border Integration Zones as: “Those areas belonging to Border Departments, that
possess geographic, environmental, cultural and/or socioeconomic characteristics that advise joint
action and planning by border authorities in joint agreement with neighbouring countries, to take
actions that are suitable for promoting development and strengthening bilateral and international
exchangeŽ.) (emphasis added). ER, Vol. V, Annex 125.

527standardŽ 142. Thus, again according to Colombia, the content of human rights

norms in connection with environmental degradation cannot be determined

independently of the special rules of environmental law, or those relating to the

protection of indigenous peoples 1423. The extent to which Colombia’s purported

lex specialis rule relating to the right to life in cases of armed conflicts under

international humanitarian law can also be applied in times of peace, and relating

to the particular subject of environmental harm, is not apparent to Ecuador.

7.81 In fact, the present case is not concerned with the application of human

rights under two different legal regimes, i.e., in times of peace as opposed to

times of armed conflict, but with the complementary application of different types

of legal rules and institutions. International human rights instruments and

international environmental law and the rules protecting indigenous peoples take

into account the harmful impact of pollution on humans, and focus on the failure

of the State to take necessary preventive measures. As Ecuador has already

explained in the previous section of this Chapter, human rights and the law on

transboundary harm, for example, are not mutually exclusive, but rest on the

same foundations and must be applied in a mutually supportive way. Each of

these norms, together with those arising in respect of the protection of the rights

of indigenous peoples, is distinct and gives rise to an independent cause of action.

142CCM, Chap. 9, para. 9.7.

142Ibid.

5287.82 Moreover, as the Court has noted: “the environment is not an abstraction

but represents the living space, the quality of life and the very health of human

beings, including generations unbornŽ 1424. The interrelation between human

rights and environmental harm, and between the obligations to protect indigenous

peoples and human rights and environmental norms, has been reaffirmed on

several occasions by the Inter-American Court of Human Rights, most recently in

the Kawas-Fernández Case, where the Inter-American Court stated that:

“in accordance with the case law of this Court and the European

Court of Human Rights, there is an undeniable link between the
protection of the environment and the enjoyment of other human
rights. The ways in which the environmental degradation and the

adverse effects of the climate change have impaired the effective
enjoyment of human rights in the continent has been the subject of
discussion by the General Assembly of the Organization of
American States and the United Nations. It should also be noted

that a considerable number of States Parties to the American
Convention have adopted constitutional provisions which
expressly recognize the rights to a healthy environment. These

advances towards the development of human rights in the
continent have been incorporated into the Additional Protocol to
the American Convention on Human Rights in the Area of

Economic, Social and Cultural Rights ‘Protocol of San
Salvador’Ž 142.

1424
Legality of the Threat or Use of Nuclear Weapons, I.C.J. Reports 1996, pp. 241, para. 29.
142Case of Kawas-Fernández v. Honduras, Judgment, IACHR, Series C No. 152, para. 148 (3
Apr. 2009) (emphasis added, internal citations omitted). See also Matter of Pueblo Indígena de

Sarayaku Regarding Ecuador, Provisional Measures, IACHR, Series E No. 21 (17 June 2005);
Case of the Mayagna (Sumo) Awas Tingni Community v. Nicaragua, Judgment, IACHR Series C
No. 79 (31 Aug. 2001); Case of the Yakye Axa Indigenous Community v. Paraguay, Judgment,
IACHR, Series C No. 125, paras. 131 and 137 (17 June 2005); Case of the Sawhoyamaxa
Indigenous Community, Judgment, IACHR, Series C No. 146, paras. 118-121 and 131 (29 Mar.
2006); Case of the Saramaka People v. Suriname, Preliminary Objections, Judgment, IACHR,
Series C No. 172, paras. 121, 122, 126, 128 (28 Nov. 2007).

5297.83 Ecuador submits that the law concerning transboundary harm must be

interpreted and applied in the light of relevant human rights standards relating to

life, health, private life and property, among others, rather than mediated through

an alleged lex specialis rule. Ecuador submits that human rights obligations may

be particularly relevant in the context of transboundary harm: it is precisely in

such situations of conflicting sovereignties where the risk of human rights

violations in another jurisdiction is most likely. The same failings that lead to

Colombia’s failure to prevent transboundary harm in Ecuador have in this case

also led to a failure to respect human rights in Ecuador.

7.84 For all these reasons, Ecuador invites the Court to reject arguments

advanced by Colombia that seek to keep human rights and environmental

protection and the rights of indigenous peoples as distinct and separate fields

which need to be accommodated through an alleged lex specialis rule. Far from

presenting a normative conflict, these fields of law can and should be interpreted

and applied in a consistent and mutually supportive way.

Conclusions

7.85 In sum, Colombia’s attempt in the Counter-Memorial to challenge the

overwhelming case for human rights violations that Ecuador presented in the

Memorial fails for the following reasons:

530(1) The evidence adduced by Ecuador shows that drift from Colombia’s aerial

spraying of toxic herbicides has caused significant harm to people and their

property, as well as to their environment, in Ecuador. The failure to prevent these

harms is more than sufficient to constitute a violation of the right to life, health,

private life, food and water, property, humane treatment, a healthy environment,

and information, in contravention, inter alia, of the 1969 American Convention

on Human Rights with the 1988 Additional Protocol; the 1966 ICCPR and

ICESCR; the 1979 CEDAW; and the 1989 CRC.

(2) It is not necessary for Ecuador to show that Colombia’s aerial spraying is

“targetedŽ at anyone in Ecuador. The human rights case law concerned with

pollution impacts on health and private life shows that pollution normally

involves unintended and incidental consequences, but these impacts are no less

violations of human rights.

(3) Harm could have been prevented if Colombia had exercised the necessary

diligence in controlling the spraying operations and enforcing its own

environmental standards. The human rights case law demonstrates that States

must balance the interests of the community in eradicating illicit crops against the

harm to individual human rights. By failing to comply with or enforce its own

EMP, Colombia has carried out spraying operations in disregard of the harmful

impact on humans.

531(4) Human rights, the law on transboundary harm and the protection of the

rights of indigenous peoples are not mutually exclusive, but rest on the same

foundations and must be applied in a consistent and mutually supportive way.

The law concerning transboundary harm must be interpreted and applied in the

light of relevant human rights standards relating to life, health, private life, food

and water, property, humane treatment, a healthy environment and information,

rather than mediated through an alleged lex specialis rule.

(5) Colombia and Ecuador are part of a common legal space at the regional

level (un espace juridique commun) relating to the protection of human rights and

indigenous peoples. It follows that Colombia and Ecuador are subject to an

international public order of human rights which does not allow for loopholes in

the effective protection of human rights for any part of their population.

(6) The circumstances surrounding the present case fall within the terms of

Article 1 of the American Convention on Human Rights and Article 2(1) of the

ICCPR. To exclude from the protection offered by these instruments acts

committed in one Contracting State but which produce effects in the territory of

another Contracting State would run counter to the object and purpose of these

instruments.

(7) The daily life of indigenous peoples living on the Ecuadorian side of the

border has been particularly affected by Colombia’s aerial spraying.

Displacement of communities, interference with the use and enjoyment of their

532property and traditional culture, and loss of access to and use of the forests,

including traditional medicines, have all resulted from Colombia’s extensive

spray programme, in violation Article 27 of the ICCPR, Articles 4-7, 13 and 15 of

ILO Convention No. 169, and Article 21 of the American Convention.

(8) Colombia is in violation of its obligation under ILO Convention No. 169

to respect the rights of indigenous peoples, and to consult and notify indigenous

communities likely to be affected by aerial spraying of herbicides … in the present

case, including the representatives of the Awá, Cofán, Kichwa and Afro-

Ecuadorian communities. It is also in violation of its obligation to conduct

meaningful monitoring of the impacts on these communities.

(9) Finally, Colombia has violated obligations deriving from a bilateral

agreement of November 2002 relating to transboundary cooperation in the so-

called Zonas de Integración Fronteriza (Border Integration Zones).

533CHAPTER 8.

REMEDIES8.1 In Chapter 10 of the Memorial, Ecuador set out the consequences of the

responsibility and liability of Colombia for the multiple violations of international

law that have been occasioned by its acts and omissions in relation to the aerial

spraying programme commenced in 2000. Basing itself upon the ILC Draft

Articles on State Responsibility, and on the practise adopted by the International

Court of Justice, in its Memorial, Ecuador set out the principles underlying the

relief sought in its submissions, calling for (1) a declaration that Colombia has

1426
violated its international obligations , (2) an order of cessation and non-

1427
repetition of Colombia’s internationally unlawful acts , (3) the application of

1428
the principles governing reparation , (4) the application of the principles

1429 1430
governing compensation , and (5) the principle of satisfaction .

8.2 Colombia has chosen to respond only briefly to these arguments and

1431
submissions, in Chapter 10 of its Counter-Memorial . Colombia indicates in

the most general terms that Ecuador’s arguments are inadequate, and for this

reason it will only address “all issues of legal consequences, including

1426Memorial of Ecuador, Vol. I, Chap. 10, para. 10.2 (28 Apr. 2009) (hereinafter “EMŽ).

1427EM, Chap. 10, paras. 10.10-10.13.

1428EM, Chap. 10, paras. 10.14-10.25.

1429EM, Chap. 10, paras. 10.26-10.58.
1430
EM, Chap. 10, paras. 10.59-10.60.
1431
Counter-Memorial of Colombia, Vol. I, Chap. 10, paras. 10.1-10.6 (29 Mar. 2010) (hereinafter
“CCMŽ).

537 1432
quantificationŽ at a later stage in light of the Court’s “actual findings of factŽ .

Apart from this, Colombia sets out its reasons why it believes the Court should

not accede to Ecuador’s request that the Court should order Colombia to refrain

from further aerial spraying operations “at, near or across the border with

1433
EcuadorŽ . Ecuador will respond to each argument in turn.

8.3 As a preliminary matter, Ecuador notes that, as recently as 11 November

2010, Colombia reaffirmed that it would continue to maintain a buffer zone of 10

kilometres along the border with Ecuador, within which it would not engage in

1434
aerial spraying activity . This representation has now been made on numerous

occasions, and it is one on which Ecuador relies, not least as it reflects a

confirmation on the part of Colombia as to the reasonableness and proportionality

of the relief sought by Ecuador. However, Colombia’s representation is

insufficient in itself because it is neither a permanent nor a binding commitment

to refrain from conducting aerial spraying operations in close proximity to the

border. To obtain such a permanent and binding commitment … in light of

Colombia’s refusal to give one … Ecuador requires the intervention of the Court.

143CCM, Chap. 10, para. 10.7.
1433
CCM, Chap. 10, paras. 10.8-10.11.
1434
Republic of Colombia, Ministry of Foreign Affairs, Press Release (11 Nov. 2010). ER, Vol.
V, Annex 156.

538 Section I. The Purported Impropriety of Ecuador’s Approach to Relief

8.4 Colombia seeks to circumvent Ecuador’s claimed relief on the grounds

that Ecuador has not proven any material damage and is therefore not entitled to

any remedy at all 143. This is a classic bootstraps argument, and it suffers from a

number of basic and self-evident flaws. First, it proceeds on the erroneous basis

that Ecuador has not established any violation of any international legal

obligations, whether in respect of sovereignty, the prevention of harm to human

health and the environment, the violation of human rights and indigenous

peoples’ rights, or the violation of essential procedural requirements such as the

provision of information and the conduct of a prior environmental impact

assessment. If Colombia is wrong on that basic assumption … as Ecuador asserts

is self-evidently the case … then it follows inexorably that Ecuador is entitled to a

declaration of Colombia’s responsibility under international law and, in due

course, an assessment of liability. This is well-established and follows from the

ILC Articles, an instrument to which Chapter 10 of the Colombian Counter-

Memorial makes not a single reference. It is particularly appropriate in relation to

the procedural violations, which by definition cannot await a showing of actual

harm in order to have become applicable and to have been violated: it is sufficient

that such a declaration is an appropriate remedy in the face of the real risks that

exist, and that are largely recognised by Colombia.

143CCM, Chap. 10, para. 10.4.

5398.5 Colombia’s approach is to rewrite the basic rules of international law, by

ignoring established principles and the constant practise of the Court. As

Colombia well knows, it is usual and proper for the Court to be asked first to

identify a violation of an international legal obligation, and only then to

determine the consequences of that violation. This is exactly the approach sought

by Ecuador in its Application, in its Memorial and in its Submissions.

8.6 The second error into which Colombia falls is its patent inability to

distinguish between the identification of a violation, on the one hand, and the

quantification of loss, on the other hand. Colombia’s approach to Ecuador’s

request for relief is entirely premised on the alleged inability of Ecuador to

quantify in physical and monetary terms the totality of the harms that have

occurred. It is certainly true that Ecuador has not yet quantified the monetary

value of the harms it has suffered, but adopting the approach taken by the Court

in other cases it respectfully submits it has no need to do so at this stage of the

proceedings. In its Memorial, Ecuador has amply demonstrated that violations of

international legal norms have occurred and that these have had real and serious

consequences: the sovereignty of Ecuador has been violated; damage has been

caused to humans and to their property, including farms; and damage has been

1436
caused to the natural environment in Ecuador . These matters have been

143EM, Chaps. 5 and 7.

540 1437
addressed in detail in this Reply . In regard to quantification of the damages

incurred, Ecuador has taken the position that this is to be addressed at a later stage

1438
in the proceedings .

8.7 In adopting this approach Ecuador is following the tried and tested

practise of the Court, as reflected by way of example in the Nicaragua case and

the Case of Armed Activities in the Democratic Republic of Congo, both of which

were invoked in the Memorial but to which Colombia has offered no response 1439.

In neither of those cases was the Applicant State required to quantify in the first

phase of the proceedings the consequences of the violations or the precise

monetary valuation of the harms suffered.

8.8 Third, and most significantly, Colombia asserts that Ecuador has failed to

prove the “material elementŽ of what Colombia refers to as the “principal

1440
claimŽ . This is simply wrong, as the evidence before the Court shows.

Ecuador has proved violations of international legal obligations and it has also

proved that harmful consequences have been felt as a direct result of these

violations, and for which Colombia’s liability under international law is

1437See supra Chaps. 3 and 5.
1438
EM, Chap. 10, para. 10.49.
1439
EM, Chap. 10, paras. 10.3-10.5.
1440CCM, Chap. 10, para. 10.2.

541 1441
established . The extent of that harm and the quantification of its monetary

value where such compensation is due are properly matters for a later phase of the

proceedings.

8.9 In short, this is not about imposing on the Court any requirement to

“intuitŽ harm, as Colombia claims, or about any form of “confessionŽ that

1442
Ecuador is supposed to have made as to the adequacy or extent of its case . In

no recent case of which Ecuador is aware has the evaluation of the harm suffered

… in monetary terms … been quantified at this stage of the proceedings. Colombia

has fallen into confusion, or is wilfully mischaracterising Ecuador’s pleaded case,

or has simply run out of steam at the tail end of a lengthy and ambiguous pleading

that frequently fails to engage with the arguments made by Ecuador.

8.10 With regard to Ecuador’s claim for an order for non-repetition, Colombia

asserts that no such order should be made “in the absence of proof of any

wrongful act on the part of ColombiaŽ, the only wrongful act being “proof of

1443
damageŽ . Here again, Colombia melds the assessment of the violation of

Ecuador’s substantive international legal rights with the valuation of the harms

suffered, yet they are not one and the same thing. The object of the order for non-

144EM, Chaps. 5 and 7; see supra Chaps. 3 and 5-7.
1442
CCM, Chap. 10, para. 10.2
1443
CCM, Chap. 10, para. 10.4.

542repetition is to protect Ecuador from any further violation of its rights under

international law: those rights include, but are not limited to, the prevention of

further physical harm that is capable of being quantified in monetary terms.

Ecuador is also entitled to relief in relation to violations of sovereignty, the

protection of the aesthetic value of its natural environment, and the protection of

its people from the fears caused by the aerial spraying of toxic pesticides.

Whether or not these are susceptible to monetary valuation … and Ecuador

submits that they are … Colombia is not entitled to act in violation of international

norms that guarantee these rights and the values they reflect.

8.11 Finally, Colombia challenges Ecuador’s reliance on certain authorities

governing the identification of principles for the protection and valuation of

environmental and related harms. Colombia invites the Court to follow the

approach set forth in the single authority of the Trail Smelter case, which dates

back to the 1940s, and take no account of the more recent approach reflected in

the decisions of the UN Compensation Commission (“UNCCŽ) 1444. In this way,

Colombia wishes to inscribe itself in methodologies adopted more than six

decades ago, in the period before the advent of the modern rules of international

law pertaining to the rights of indigenous peoples, human rights and the

environment, and to ignore the totality of legal developments that have occurred

since then. This is telling, and also flatly inconsistent with the approach reflected

144CCM, Chap. 10, para. 10.6.

543in the domestic law of Colombia 1445. Colombia invites the Court to ignore,

amongst other approaches, that taken by the UNCC. Yet this is a pertinent

authority because it brings together the developments in international law and

practise over the past six decades. It reflects the approach taken by Ecuador in

these proceedings.

8.12 Colombia informs the Court that it will address “all issues of legal

1446
consequencesŽ of its unlawful acts at a later stage . This wholly inadequate

response wilfully mischaracterises the issues to be decided by the Court at the

present stage. Ecuador invites the Court to reject Colombia’s approach, and to

determine that Colombia has violated its international legal obligations, of both a

procedural and substantive character. The monetary consequences are properly to

be determined at a later stage, in accord with established international practise. In

this regard, Ecuador notes that in the recent Judgment in the Case Concerning

Ahmadou Sadio Diallo the Court adopted precisely the approach for which

Ecuador has argued: having found a violation of international law, the Court

ruled: (i) that reparation due “must take the form of compensationŽ; (ii) that the

parties should “engage in negotiation in order to agree on the amount of

compensation to be paidŽ; and (iii) failing agreement between the Parties within

1445See Claudia Rojas Quiñonez, Esq., The Aerial Spray Program and Violations of Colombia’s
Domestic Laws Regarding the Environment and the Rights of Indigenous Peoples, Sections I &
V(B) (Jan. 2011). ER, Vol. II, Annex 8.

144CCM, Chap. 10, para. 10.7.

544six months of the Judgment on the amount of compensation to be paid, the matter

“shall be settled by the Court in a subsequent phase of the proceedingsŽ and that

“a single exchange of written pleadings by the Parties would then be sufficient in

order for it to decide on the amount of compensationŽ 144.

Section II. Ecuador Has Not Attempted to Restrict Colombia’s Sovereignty
Over Its Territory

8.13 Having asserted that it will not engage in any assessment of the legal

consequences of its unlawful acts, Colombia proceeds in the second part of its

response to Ecuador’s remedial arguments to do precisely that. Colombia takes

exception to Ecuador’s request that it should not conduct aerial spraying “at, near

or across the border with EcuadorŽ 1448. The reasons it provides are wholly

unpersuasive.

8.14 Colombia reminds the Court that it has maintained a 10 kilometre “no

1449
sprayŽ zone along the Colombian side of the border . However, it is important

to note that this has been done by Colombia on a voluntary basis and without

1450
prejudice to its capacity to resume such spraying “as might be necessaryŽ .

1447
Case Concerning Ahmadou Sadio Diallo (Republic of Guinea v Democratic Republic of
Congo), Judgment, 2010, pp. 48-49, paras. 161-164.
1448
CCM, Chap. 10, para. 10.10.
1449
CCM, Chap. 10, para. 10.9.
1450Ibid.

545Such an approach provides inadequate guarantees that Ecuador’s rights under

international law will be protected.

8.15 Colombia asserts that it “does not claim any right to spray across the

borderŽ, that the spraying activity “must occur on Colombian territoryŽ and that

its only obligation is to meet a standard of due diligence in preventing drift across

the border 145. Colombia further asserts that “a 100m buffer zone from the

1452
boundary riverŽ is perfectly adequate to prevent spray drift reaching Ecuador .

These statements require a firm response. Colombia has voluntarily adopted a 10

kilometre buffer zone over the past three years. Ecuador is doing no more than

asking the Court to make that same buffer zone legally constraining upon

Colombia; Ecuador invites the Court to order that this buffer zone should be

permanently maintained. In this regard, a number of comments are justified.

8.16 First, Ecuador notes Colombia’s concession that no spray planes may

cross the border into the territory of Ecuador. The evidence in Chapter 2 shows

clearly that Colombian planes have on a small number of occasions crossed the

boundary with Ecuador whilst spraying 1453. Ecuador insists on its right to ensure

that this never happens, whether by design or by inadvertence. Accordingly,

1451
CCM, Chap. 10, para. 10.11.
1452Ibid.

1453See supra Chap. 2, para. 2.163,320 ; see also, R. John Hansman, Ph.D. & Carlos F. Mena,
Ph.D., Analysis of Aerial Eradication Spray Events in the Vicinity of the Border Between

Colombia and Ecuador from 2000 to 2008, p. 13 (Jan. 2011). ER, Vol. II, Annex 2.

546Colombia can have no objection to that part of the order Ecuador has requested

from the Court that concerns non-repetition of aerial intrusions.

8.17 Second, Ecuador notes the standard of due diligence to which Colombia

professes attachment. As described in the Memorial and in Chapter 2 of this

Reply 1454, Colombia has not met even this minimal standard, as spray has drifted

across the border and caused harmful effects. This is the direct result of

Colombia’s failure to exercise proper diligence in respect of the conduct of the

1455
spraying activities: the chemicals used are inappropriate ; the operational

requirements intended to control spray drift are lax by comparison with the vast

majority of other States 145, and even these requirements have been regularly

disregarded on tens of thousands of occasions, particularly in regard to the speed

of the planes, the height at which they dispense the spray, droplet size, application

rate, time of day, climatic conditions, etc., making it more likely that there will be

spray drift and that it will be transported many kilometres into Ecuador 1457.

8.18 Third, the history of aerial spraying on the border plainly demonstrates

that a 100 metre buffer zone is plainly inadequate: Colombian planes have

conducted spraying operations thousands of times more than 100 metres from the

1454See supra Chap. 2, paras. 2.65-2.202; EM, Chap. 5, Sec. III and Chap. 6.

1455See supra Chap. 2, paras. 2.18-2.63.
1456
See supra Chap. 4, paras. 4.99-4.114.
1457
See supra Chap. 2, paras. 2.88-2.154.

547border with Ecuador, yet toxic herbicides have drifted across the border well into

Ecuador and given rise to risks and caused significant harm to Ecuadorian people,

1458
crops, livestock, forests and the environment . For these reasons, Ecuador

maintains that a 10 kilometre buffer zone is the minimum acceptable parameter.

Conclusions

8.19 Contrary to the position adopted by Colombia, the Court’s task is not

limited to establishing that significant harm has occurred, although this is

certainly one of the matters for decision by the Court. In light of the hazardous

activity conducted by Colombia, and the patent risk of potential and irreversible

damage, the obligations of assessment, cooperation, consultation and provision of

information all arise in the context of a risk of potential harm. Accordingly, the

relief sought by Ecuador is appropriate in respect of these procedural violations,

in circumstances where Colombia has not met minimum international standards

or the requirements of its own domestic law: the Court can and should order a 10

kilometre buffer zone. Moreover, Colombia’s actions have caused measurable

and serious harm to people, crops, property and the environment and would do so

again if the spraying were to be resumed. Ecuador is entitled to all the relief it

has sought, and it is entitled to quantify the monetary damages it seeks to recover

in a later phase of the proceedings.

145See supra Chap. 3.

548SUBMISSIONS SUBMISSIONS

On the basis of the facts and law referred to above, Ecuador requests the Court to

adjudge and declare that:

(A) Colombia has violated its obligations under international law by causing or

allowing the deposit on the territory of Ecuador of toxic herbicides that have

caused damage to human health, property and the environment;

(B) Colombia shall indemnify Ecuador for any loss or damage caused by its

internationally unlawful acts, namely the use of herbicides by aerial dispersion,

and in particular:

(i) death or injury to the health of any person or persons arising from the

use of such herbicides;

(ii) any loss of or damage to the property or livelihood of such persons;

(iii) violation of the human rights of such persons;

(iv) violation of the special rights of indigenous peoples;

(v) environmental damage or the depletion of natural resources;

(vi) the costs of monitoring to identify and assess future riss to public

health, human rights and the environment resulting from Colombia’s

use of herbicides; and

(vii) any other loss or damage;

(C) Colombia shall:

(i) respect the sovereignty and territorial integrity of Ecuador;

(ii) respect the human rights of Ecuadorian nationals;

(iii) respect the special rights of indigenous peoples in Ecuador;

(iv) tae no action to harm the natural environment in Ecuador;

551(v) forthwith, tae all steps necessary to prevent, on any part of its

territory, the use of any toxic herbicides in such a way that they could

be deposited onto the territory of Ecuador; and

(vi) prohibit the use, by means of aerial dispersion, of such herbicides

within 10 ilometres of the border with Ecuador.

31 January 2011

____________________________

Mr. Diego Garcia Carrión

Agent of the Republic of Ecuador

552 Certification

I certify that the annexes are true copies of the documents referred
to and that the translations provided are accurate.

__________________________________

Mr. Diego Garcia Carrión

Agent of the Republic of Ecuador

553 LIST OF FIGURES

FOLLOWING
PAGE

Figure 2.1 Excerpt From GLY-41 Label 47

Figure 2.2 Warning Symbols From GYL-41 Label … 48
Human Health

Figure 2.3 Warning Symbols From GYL-41 Label … 48
Animals & Environment

Figure 2.4 Flight Speed of Spray Events Within 83
10 Kilometres of Ecuador’s Sucumbíos
Province (2000 - 2008)

Figure 2.5 Breakup of Spray Droplets As They 84
Encounter Wind Turbulence

Figure 2.6 Altitude of Spray Events Within 10 89
Kilometres of Ecuador’s Sucumbíos Province
(2000 - 2008)

Figure 2.7 Effects of Altitude and Flight Speed on Spray 92
Drift

Figure 2.8 Photograph of AT-802 Spray Plane 97

Figure 2.9 Photograph of OV-10 Aircraft 100

Figure 2.10 Time of Day of Spray Events (2000 - 2008) 116

Figure 2.11 Density of Parallel Spray Lines Within 147

10 Kilometres of Ecuador’s Border During a
Single Month (September 2002)

Figure 2.12 Cumulative Impact of Drift From Multiple 147
Spray Lines

Figure 2.13 Distance From Spray Events Adjacent To 153

Ecuador’s Sucumbíos Province (2000 - 2008)

555Figure 2.14 Distance From Spray Events Adjacent To 15 3

Ecuador’s Esmeraldas Province (2000 - 2008)

Figure 3.1 Spray Events Within 10 Kilometres of 167
Ecuador’s Sucumbíos Province
(December 2000 - February 2001)

Figure 3.2 Spray Events Within 10 Kilometres of 182

Ecuador’s Sucumbíos Province (August -
September 2002) & Spray Events Within
10 Kilometres of Ecuador’s Sucumbíos
Province (November - December 2004)

Figure 3.3 Spray Events Within 10 Kilometres of 191

Ecuador’s Sucumbíos Province
(November 2001 - October 2002)

Figure 3.4 Spray Events Within 10 Kilometres of 216
Ecuador’s Esmeraldas Province (August -

September 2000)

Figure 3.5 Warning Symbols From GLY-41 Label … Fish 221
and other aquatic organisms

Figure 3.6 Spray Events Within 10 Kilometres of 225
Ecuador’s Esmeraldas Province (March 2004

- December 2005)

Figure 3.7 Spray Events Within 10 Kilometres of 225
Ecuador’s Esmeraldas Province
(February 2007)

Figure 3.8 Coca Cultivation Density in the Andean 255

Region, 2006

556 LIST OFANNEXES

VOLUME II

EXPERT REPORTS

Annex 1 R. John Hansman, Ph.D. & Carlos F. Mena, Ph.D., Analysis of

Aerial Eradication Spray Events in the Vicinity of the Border
Between Colombia and Ecuador from 2000 to 2008 (Jan. 2011)

Annex 2 Durham K. Giles, Ph.D., Spray Drift Modeling of Conditions of

Application for Coca Crops in Colombia (Jan. 2011)

Annex 3 Stephen C. Weller, Ph.D., Glyphosate-Based Herbicides and

Potential for Damage to Non-Target Plants Under Conditions of
Application in Colombia (Jan. 2011)

Annex 4 Henri Balslev, Ph.D., The Vulnerability of the Ecuador-Colombia

Border Region to Ecological Harm (Jan. 2011)

Annex 5 Norman E. Whitten, Jr., Ph.D., Dr. William T. Vicers, Ph.D. &
Michael Cepe, Ph.D., Tropical Forest Cultural Ecology and

Social Adaptation in the Ecuadorian Border Region with Colombia
(Jan. 2011)

Annex 6 Charles A. Menzie, Ph.D. & Pieter N. Booth, M.S., Response to:
“Critique of Evaluation of Chemicals Used in Colombia’s Aerial
Spraying Program, and Hazards Presented to People, Plants,
Animals and the Environment in Ecuador,” As Presented in:

Counter-Memorial of the Republic of Colombia, Appendix (Jan.
2011)

Annex 7 Reinhard Joas, Ph.D., The Development of the 2009 European
Union Pesticides Directive With Particular Focus on Aerial
Spraying (Jan. 2011)

Annex 8 Claudia Rojas Quiñonez, Esq., The Aerial Spray Program and
Violations of Colombia’s Domestic Laws Regarding the Environment
and the Rights of Indigenous Peoples (Jan. 2011)

557 VOLUME III

REGULATIONS & TECHNICAL REPORTS

Annex 9. Italian Republic, Legislative Decree No. 194 (17 Mar. 1995)

Annex 10. Spray Drift Tas Force, A Summary of Aerial Application
Studies (1997)

Annex 11. Sweden, Environmental Code 808 (last amended 2009) (1998)

Annex 12. A. J. Hewitt et al., Development of the Spray Drift Tas Force
Database for Aerial Applications, 21(3) ENVIRONMENTAL

TOXICOLOGYAND CHEMISTRY (2002)

Annex 13. C. N. Boutin, C. Elmegaard and C. Kjaer, “Toxicity Testing
of Fifteen Non-crop Plant Species with Six Herbicides in a

Greenhouse Experiment: Implications for Ris AssessmentŽ,
in Ecotoxicology. 13:349…369 (2004)

Annex 14. French Republic, Decree On the Use of Products Mentioned in
Article L.253-1 of Rural Code (5 Mar. 2004)

Annex 15. Las Palmas Ltda., Technical Department, Glyphosate (10,4

l/ha) and Three Different Adjuvants, For Illicit Coca Crop
▯(U\WKR[\OXP▯VSS▯▯▯&RQWURO▯▯$JURQRPLF▯(I¿FDF\▯7HVWLQJ▯RI▯
Doses of Glyphosate in Illicit Crops: Final Report (July 2004)

Annex 16. Republic of Slovenia, Act on Plant Protection Products
(9 Sept. 2004)

Annex 17. United Kingdom, Department for Environment, Food and Rural
Affairs, Code of Practice For Using Plant Protection Products
(2006)

Annex 18. Costa Rica, Executive Decree No. 34202-MAG-S-MINAE-
MOPT-G-MSP (21 May 2007)

Annex 19. Nova Scotia Environment and Labour, Media Backgrounder:
Herbicide Management (July 2007)

558Annex 20. Republic of Estonia, Plant Protection Products Act, entered into
force 1 May 2004, amended 1 July 2008

Annex 21. Austrian Federated State of Vorarlberg, Ordinance on Plant
Protection Products, LGB1.Nr. 18/2008 (2008)

Annex 22. Australian Pesticides and Veterinary Medicines Authority

(APVMA), AVPM Operating Principles in Relation to Spray
Drift Risk (15 July 2008)

Annex 23. American Society of Agricultural and Biological Engineers,
6SUD\▯1R]]OH▯&ODVVL¿FDWLRQ▯E\▯'URSOHW▯6SHFWUD▯▯$16,▯$6$(▯
S572.1 (Mar. 2009)

Annex 24. French Republic, Rural and Maritime Fishery Code, Art. L253-
1(V) (2010)

Annex 25. Government of Sasatchewan, Ministry of Agriculture, 2010
Guide to Crop Protection (2010)

Annex 26. Federal Republic of Germany, Federal Institute of Ris
Assessment, Health Assessment Report POE-tallowamines
(6 Sep. 2010)

Annex 27. United States Roundup Ultra Label

Annex 28. Colombia GYL-41 SL Label and Safety Data Sheet

VERIFICATION & OBSERVATION REPORTS

Annex 29. Organization of Indigenous Nations of Colombia (ONIC),
Evaluation of the Fumigations in Colombia: Destruction of
Rural Areas from Plan Colombia (Aug. 2002)

Annex 30. Colombian Medical Inquests (Sept. 2002)

Annex 31. Ecuadorian Medical Inquests (Sept.- Nov. 2002)

Annex 32. Association of American Jurists, et al., 5HSRUW▯RQ▯9HUL¿FDWLRQ▯
Mission, “Impacts in Ecuador of Fumigations in Putumayo

Department under Plan Colombia” (Oct. 2002)

559Annex 33. Letter from Victor Velasco Tapia, Government of Sucumbios,
Republic of Ecuador, to Lourdes Luque, Minister of Health,
Republic of Ecuador (Oct. 2002)

UNITED STATES GOVERNMENT DOCUMENTS

Annex 34. Memorandum from Peter P. Trent, INL/RM/ASD, PSC Bogota,
to Grant Harden,INL/RM/ASD, COR (4 July 1996)

Annex 35. Memorandum from David Johnson, INL/C/ASD, to Grant
Harden, INL/C/ASD (14 Nov. 1996)

Annex 36. Memorandum from David Johnson INL/C/ASD to Grant
Harden, INL/C/ASD (12 Dec. 1996)

Annex 37. Memorandum from Tim Doty, COR, INL/RM/AS to Dyncorp,

PSD Manager (28 May 1997)

Annex 38. Memorandum from Tim Doty, COR, INL/RM/AD, to Dyncorp,

PSD Manager (Aug. 1997)

Annex 39. Memorandum from Stephen H. Harris, INL/RM/AD, to
Dyncorp (21 June 1999)

Annex 40. Aviation Resource Management Inspection of Air Wing
Colombia Site (23 March 2000)

Annex 41. U.S. Department of Agriculture, Agricultural Research
Service, &RORPELD▯&RFD▯9HUL¿FDWLRQ▯0LVVLRQ▯$SULO▯0D\▯▯▯▯▯▯

(7 July 2001)

Annex 42. Memorandum from Stephen H. Harris, COR, DoS/INL/A, to
Dyncorp, PSD Manager (Dec. 2001)

Annex 43. United States Congressional Research Service, Andean
Regional Initiative (ARI): FY2002 Assistance for Colombia and

Neighbors (14 Dec. 2001)

Annex 44. Memorandum from Lowell E. Neese, SAA, DoS/
INL/A (Bogota), to Stephen H. Harris, COR, DoS/INL/A

(13 Mar. 2002)

560Annex 45. 8QLWHG▯6WDWHV▯(QYLURQPHQWDO▯3URWHFWLRQ▯$JHQF\▯▯2I¿FH▯RI▯
Prevention, Pesticides and Toxic Substances, Report on Issues
Related to the Aerial Eradication of Illicit Coca in Colombia,

Response from EPA Assistant Administrator Johnson to
Secretary of State (19 Aug. 2002)

Annex 46. Memorandum from Lowell Neese, Senior Aviation Advisor,

DoS/INL/A (Colombia), to Paul O’Sullivan, COR, DoS/INL/A
(21 Apr. 2003)

Annex 47. Memorandum from Lowell Neese, Senior Aviation Advisor,

DoS/INL/A (Colombia), to Paul O’Sullivan, COR, DoS/INL/A
(9 May 2003)

Annex 48. Memorandum from David A. Campbell, COR, DoS/INL/A, to
Dyncorp, PSD Manager (Feb. 2004)

Annex 49. Memorandum from Stephen H. Harris, COR, DoS/INL/A, to

Dyncorp, L 55 (Undated)

Annex 50. United States Department of State, Evaluation Summary
Technical Operations, G 111 (Undated)

Annex 51. Memorandum from Michael J. Kenna, INL/RM/AD, Senior
Aviation Advisor, to Steve Harris (COR) and George Arzente,

INL/RM/AD/COR, L 14 (Undated)

VOLUME IV

NEWS ARTICLES

Annex 52. Steve Salisbury, “Pray and Spray: SOF With Coe-Bustin’
BroncosŽ, SOLDIER OF FORTUNE (July 1998)

Annex 53. Tod Robberson, “2 U.S. Pilots Die on Colombian Anti-Narcotics
MissionŽ, DALLAS MORNING NEWS (Dallas, 29 July 1998)

Annex 54. Larry Rohter, “To Colombians, Drug War is Toxic EnemyŽ,

THE NEW YORK TIMES (New Yor, 1 May 2000)

561Annex 55. “The Void of the FumigationsŽ, EL TIEMPO
(Bogotá, 28 May 2000)

Annex 56. “Mayor Denounces FumigationsŽ, EL UNIVERSO
(Guayaquil, 22 Aug. 2000)

Annex 57. “In Mataje the Implementation of Plan Colombia Causes First
RavagesŽ, LA HORA (Quito, 18 Sept. 2000)

Annex 58. “44 Affected by the FumigationsŽ, EL COMERCIO
(Quito, 22 Oct. 2000)

Annex 59. “No To Fumigation: GovernorsŽ, EL TIEMPO

(Bogotá, 15 Jan. 2001)

Annex 60. Juan Forero, “No Crops Spared in Colombia’s Coca

WarŽ, THE NEW YORK TIMES (New Yor, 31 Jan. 2001)

Annex 61. “The Drama of FumigationsŽ, EL UNIVERSO
(Guayaquil, 10 July 2001)

Annex 62. “Fumigation DisputeŽ, EL TIEMPO (Bogotá, 22 July 2001)

Annex 63. “Colombia Drug Czar to Keep SprayingŽ, THE NEW YORK
TIMES (New Yor, 31 July 2001)

Annex 64. “Colombia Denounces Indiscriminate Spraying in PutumayoŽ,

EL COMERCIO (Quito, 10 Jan. 2002)

Annex 65. “Binational Meeting of Indigenous Communities„ Plan

Colombia terrorizes the communitiesŽ, LA HORA (7 Apr. 2002)

Annex 66. “Between Faith and FumigationsŽ, EL TIEMPO

(Bogotá, 10 May 2002)

Annex 67. “Another Controversy Over FumigationŽ, EL COMERCIO
(Quito, 9 July 2002)

Annex 68. “Hunger and Misery from FumigationsŽ, EL UNIVERSO
(Guayaquil, 7 Sept. 2002)

562Annex 69. “Farmers Against FumigationsŽ, EL UNIVERSO
(Guayaquil, 19 Sept. 2002)

Annex 70. “Ecuadorians Demand CompensationŽ, LA HORA
(Quito, 26 Sept. 2002)

Annex 71. “Glyphosate Affects Crops in SucumbíosŽ, EL COMERCIO
(Quito, 8 Oct. 2002)

Annex 72. “Requesting an End to FumigationsŽ, EL TIEMPO
(Bogotá, 10 Oct. 2002)

Annex 73. “Fumigations Cause Concern in PutumayoŽ, EL COMERCIO

(Quito, 10 Nov. 2002)

Annex 74. “Glyphosate RainŽ, EL TIEMPO (Bogotá, 25 Feb. 2003)

Annex 75. “Spray Program on Indigenous Territories Is StrugglingŽ,
EL TIEMPO (Bogotá, 28 Apr. 2003)

Annex 76. “We Will Continue To Fumigate While I Am PresidentŽ,
EL TIEMPO (Bogotá, 30 June 2003)

Annex 77. “Anti-drug plane shot down, U.S. saysŽ, CHICAGO TRIBUNE
(Chicago, 23 Sept. 2003)

Annex 78. “Billiard Shot on Three FrontsŽ, EL TIEMPO

(Bogotá, 13 Nov. 2003)

Annex 79. “Suarez new Environment Minister as Rodriguez QuitsŽ,

BUSINESS NEWS AMERICAS (14 Nov. 2003)

Annex 80. “EU criticises Colombia on rightsŽ, BBC

(London, 22 Jan. 2004)

Annex 81. “More Refugees As a Result of Fumigations Along the BorderŽ,
EL UNIVERSO (Guayaquil, 8 Feb. 2007)

Annex 82. “Colombia Announces Ceasing of Fumigations to
Ease Relations with QuitoŽ, EL UNIVERSAL.COM

(Caracas, 9 Feb. 2007)

563Annex 83. “Colombia Sprayed Within 1 m of the BorderŽ,
EL UNIVERSO (Guayaquil, 10 Feb. 2007)

Annex 84. “Fishermen in Esmeraldas Fear Spraying with Glyphosate
Affects MangrovesŽ, EL UNIVERSO (Guayaquil, 20 Feb. 2007)

Annex 85. “Putumayo: Governor Denounces FumigationsŽ, HOY
(Quito, 29 July 2007)

Annex 86. “A Constitution Appeal Is Ordered In San Jorge: A Judge
Recognizes the Ris of Glyphosate FumigationsŽ, ENTRE
RIOS ENTRE TODOS (Entre Rios, 13 Apr. 2009)

Annex 87. Crytstal Gammon, “Weed Killer Kills Human Cells:
6WXG\▯,QWHQVL¿HV▯'HEDWH▯RYHU▯µ,QHUW¶▯,QJUHGLHQWV´▯▯
ENVIRONMENTAL HEALTH NEWS (22 June 2009)

Annex 88. “Santa Fe: A Ruling In Favor of LifeŽ, RENACE (4 Jan. 2010)

Annex 89. “It Is Warned that Fumigations Are Being Carried Out in Paraná

Despite Them Being ProhibitedŽ, LAVOZ (9 Jan. 2010)

Annex 90. “Fumigations with Glyphosate Is Not Permitted on the the

PeninsulaŽ, BARILOCHE2000 (Bariloche, 10 Feb. 2010)

Annex 91. Shane Romig, “Argentina Court Blocs Glyphosate Spraying

Near Rural TownŽ, DOW JONES NEWSWIRES (21 Mar. 2010)

Annex 92. “Colombian Government Violates Pact and Fumigates with
GlyphosateŽ, VOCES.ORG (10 Nov. 2010)

Annex 93. “Colombia Fumigates AgainŽ, LA HORA (Quito, 11 Nov. 2010)

MULTILATERAL ORGANISATION DOCUMENTS

Annex 94. Commentary on the United Nations Convention Against

,OOLFLW▯7UDI¿F▯LQ▯1DUFRWLF▯'UXJV▯DQG▯3\VFKRWURSLF▯6XEVWDQFHV▯
1988, U.N. Doc. E/ CN.7/590 (20 Dec. 1988)

564Annex 95. European Union, Council Directive Concerning the Placing
of Plant Protection Products on the Market, 91/414/EEC

(15 July 1991)

Annex 96. United Nations, Conference for the Adoption of a Convention
DJDLQVW▯,OOLFLW▯7UDI¿F▯LQ▯1DUFRWLF▯'UXJV▯▯2I¿FLDO▯5HFRUGV (1994)

Annex 97. Organization for Economic Co-Operation and Development
(OECD), Activities to Reduce Pesticide Risks in OECD and

Selected FAO Countries, Part I: Summary Report,
OCDE/GD(96)121 (1996)

Annex 98. Food and Agriculture Organization of the United Nations,

Guidelines on Good Practice for Aerial Application of
Pesticides (2001)

Annex 99. European Parliament, Resolution on Plan Colombia and Support
for the Peace Process in Colombia, EUR. PARL. DOC.
B5-0087 (1 Feb. 2001)

Annex 100. Andean Community, Decision 501 Border Integration Zone
LQ▯WKH▯$QGHDQ▯&RPPXQLW\▯▯2I¿FLDO▯*D]HWWH▯RI▯$JUHHPHQWV▯RI▯
Cartagena, No. 680 (28 June 2001)

Annex 101. Andean Community, Border Integration Zone Colombia-
Ecuador, Diplomatic Notes DM/DDF 44552 & 54679/02 GM/

'*$)▯▯2I¿FLDO▯*D]HWWH▯RI▯$JUHHPHQWV▯RI▯&DUWDJHQD▯▯1R▯▯▯▯▯▯
(21 Jan. 2003)

Annex 102. Report of the Special Rapporteur on the Situation of Human

Rights and Fundamental Freedoms of Indigenous People, Mr.
Rodolfo Stavenhagen, Mission to Colombia, U.N. Doc.
E/CN.4/2005/88/Add.2 (10 Nov. 2004)

Annex 103. Commission of European Communities, The Impact Assessment
of the Thematic Strategy on the Sustainable Use of Pesticides,
SEC(2006) 894 (12 July 2006)

Annex 104. Commission of European Communities, A Thematic Strategy on
the Sustainable Use of Pesticides, Technical Annex, SEC(2006)

895 Final (12 July 2006)

565Annex 105. Organization for Economic Co-Operation and Development
(OECD), Joint Meeting of the Chemicals Committee and The

Woring Party on Chemicals, Pesticides and Biotechnology,
Report of the OECD Pesticide Risk Reduction Steering Group:
The Second Risk Reduction Survey, ENV/JM/MONO (2006)14
(19 July 2006)

Annex 106. European Commission, EU Policy for a Sustainable Use of
Pesticides: The Story Behind the Strategy (2007)

Annex 107. Paul Hunt, UN Special Rapporteur on the Right to the Highest
Attainable Standard of Health, Closing Remarks to the Press,

Quito, Ecuador (18 May 2007)

Annex 108. 8QLWHG▯1DWLRQV▯2I¿FH▯RQ▯'UXJV▯DQG▯&ULPH▯▯Coca Cultivation in
the Andean Region, A Survey of Bolivia, Colombia, Ecuador and

Peru (June 2007)

Annex 109. European Parliament and the Council of the European Union,

Directive 2009/128/EC: Establishing a Framework for
Community Action to Achieve the Sustainable Use of Pesticides
(21 Oct. 2009)

Annex 110. 8QLWHG▯1DWLRQV▯2I¿FH▯RQ▯'UXJV▯DQG▯&ULPH▯▯World Drug Report
2010 (2010)

OTHER

Annex 111. Guillermo Fernández-Soto, La Ilusión Posible: Un Testimonio

Sobre La Política Exterior Colombiana (Grupo Editorial Norma,
2004)

Annex 112. Freedom of Information Act Correspondence With United States
Environmental Protection Agency Including Roundup Export
Label (3 Mar. 2009)

Annex 113 Letter from Rebecca L. Pusas, Counsel to Government
RI▯(FXDGRU▯▯WR▯8QLWHG▯6WDWHV▯'HSDUWPHQW▯RI▯6WDWH▯2I¿FH▯RI▯
Information Programs and Services (3 Apr. 2009)

566Annex 114 /HWWHU▯IURP▯0DUJDUHW▯3▯▯*UDIHOG▯▯'LUHFWRU▯▯2I¿FH▯RI▯,QIRUPDWLRQ▯
Programs and Services, United States Department of State to
Rebecca L. Pusas, Counsel to Government of Ecuador

(13 Nov. 2009)

Annex 115. Letter from Rebecca L. Pusas, Counsel to Government of
Ecuador, to A. Harold (Hal) Eisner, United States Department of

6WDWH▯2I¿FH▯RI▯,QIRUPDWLRQ▯3URJUDPV▯DQG▯6HUYLFHV▯
(19 Feb. 2010)

Annex 116. )D[▯IURP▯$▯▯+DUROG▯(LVQHU▯▯2I¿FH▯RI▯,QIRUPDWLRQ▯3URJUDPV▯
and Services, United States Department of State to Rebecca L.
Pusas, Counsel to Government of Ecuador
(12 Mar. 2010)

Annex 117. United States District Court of the District of Colombia, Arias,
et al. v. Dyncorp, et al., Quinteros, et al. v. Dyncorp, et al.,

Declaration of Redacted Witness (2 June 2010)

Annex 118. Freedom of Information Act Correspondence With United States
Environmental Protection Agency Including Email from Stephen

J. Wratten, Monsanto Company, to Jay Ellenberger, United
States Environmental Protection Agency (30 Oct. 2010)

VOLUME V

COLOMBIAN GOVERNMENT DOCUMENTS

Annex 119 Republic of Colombia, National Code of Renewable Natural
Resources and Environmental Protection, Decree 2811 of 1974

(18 Dec. 1974)

Annex 120 Republic of Colombia, Ministry of Agriculture, Study Proposal

for the Environmental Management of the National Park Areas
of Sierra Nevada de Santa Marta and Buffer Zones Affected by
Marijuana Crops and their Destruction by Aerial Spraying with
Glyphosate (31 July 1986)

567Annex 121 Republic of Colombia, Ministry of Agriculture, Technical
Commission, 6SHFL¿FDWLRQ▯RI▯WKH▯7HUPV▯RI▯5HIHUHQFH▯IRU▯
Environmental Research in the Sierra Nevada of Santa Marta

Affected by Marijuana Crops and Spraying with Glyphosate
(1986)

Annex 122 Republic of Colombia, Colombian Agriculture and Livestoc
Institute, ICA Concepts Regarding A Report Issued by the
Environmental Audit Techeca Ltda. (1994)

Annex 123 Letter from Cecilia Lopez Montano, Minister of Environment,
Republic of Colombia, to Nestor Humberto Martinez Neira,
Minister of Justice and Law, Republic of Colombia

(20 Dec. 1994)

Annex 124 5HSXEOLF▯RI▯&RORPELD▯▯2I¿FH▯RI▯WKH▯2PEXGVPDQ▯▯0HHWLQJ▯

Minutes (17 Feb. 1995)

Annex 125 Republic of Colombia, National Congress, Law 191 of 1995
(23 June 1995)

Annex 126 Republic of Colombia, Ministry of Environment, Legal
Department, Order No. 558A (13 Aug. 1996)

Annex 127 Republic of Colombia, Ministry of Environment,
Order No. 557A (13 Aug. 1996)

Annex 128 Republic of Colombia, Constitutional Court, Triviño et al.,
Judgment SU-039/97 (3 Feb. 1997)

Annex 129 Letter from Guillermo Acevedo Mantilla, Subdirector of
Environmental Licenses, Ministry of Environment, Republic
of Colombia, to Ivon Alcala Arevalo, Director, National Drug

Directorate, Republic of Colombia (8 Oct. 1998)

Annex 130 Letter from Guillermo Acevedo Mantilla, Subdirector of
Environmental Licenses, Ministry of Environment, Republic

of Colombia, to Ruben Olarte Reyes, Director, National Drug
Directorate, Republic of Colombia (13 Nov. 1998)

Annex 131 Republic of Colombia, Ministry of Environment, Division of

568 Licenses, Technical Report No. 419.99 (21 Dec. 1999)

Annex 132 Republic of Colombia, Ministry of Environment, Division of
Environmental Licenses, Order No. 599 (23 Dec. 1999)

Annex 133 Republic of Colombia, Ministry of Environment, Division of

Environmental Licenses, Order No. 143 (29 Mar. 2000)

Annex 134 Letter from Medardo Galindo Hernandez, Ombudsman,

Republic of Colombia, to Juan Mayr Maldonado, Minister of the
Environment, Republic of Colombia (24 July 2000)

Annex 135 Republic of Colombia, National Narcotics Council, Resolution

No. 005 (11 Aug. 2000)

Annex 136 Republic of Colombia, Ministry of Environment, Division of

Environmental Licenses, Technical Report No. 589, Evaluation
of the Additional Information Provided by the National
Narcotics Directorate (20 Dec. 2000)

Annex 137 Comptroller General of the Republic of Colombia, Appointed
Comptroller for the Environment, Special Audit of the Policy for
Eradication of Illicit Crops (July 2001)

Annex 138 Republic of Colombia, Advisor on the Plan Colombia Illicit
Crop Eradication Program, Certain Toxicological and Technical

Considerations For Aerial Spraying With Glyphosate on Illicit
Crops, Bogotá, Colombia (9 July 2001)

Annex 139 Republic of Colombia, Ministry of Environment, Resolution No.

1066 (26 Nov. 2001)

Annex 140 Letter from Juan Mayr Maldonado, Minister of the

Environment, Republic of Colombia, to Gabriel Merchan
Benevides, Director General of the National Drug Directorate,
Republic of Colombia (2002)

Annex 141 Republic of Colombia, Ministry of Environment, Resolution No.
108 (31 Jan. 2002)

Annex 142 Republic of Colombia, Constitutional Court, Urueta Rojas.,
Judgment C-418/02 (28 May 2002)

569Annex 143 Comptroller General of the Republic of Colombia, Plan
Colombia: Third Evaluation Report (Aug. 2002)

Annex 144 Letter from Francisco Santander Delgado, Director General,
Corponariño, Republic of Colombia, to Maria Cecilia
Rodriguez, Minister of the Environment, Republic of Colombia

(26 Sept. 2002)

Annex 145 5HSXEOLF▯RI▯&RORPELD▯▯2I¿FH▯RI▯WKH▯2PEXGVPDQ▯▯National

Ombudsman Resolution No. 26, Human Rights and International
+XPDQLWDULDQ▯/DZ▯LQ▯WKH▯&RQWH[W▯RI▯$UPHG▯&RQÀLFW▯DQG▯
Fumigation of the Coca Crops in the Province of Putumayo (9
Oct. 2002)

Annex 146 5HSXEOLF▯RI▯&RORPELD▯▯2I¿FH▯RI▯2PEXGVPDQ▯▯The
Implementation of the Strategy of Aerial Eradication of Illicit

Crops With Chemicals, From a Constitutional Perspective (April
2003)

Annex 147 Republic of Colombia, Administrative Tribunal of

Cundinamarca, Claudia Sampedro and Others, Judgment (13
June 2003)

Annex 148 Republic of Colombia, Ministry of Environment, Resolution No.
0670, Whereby a sanction is imposed and other decisions are
made (19 June 2003)

Annex 149 Government of Colombia, Ministry of Agriculture, Resolution
No. 03759 (16 Dec. 2003)

Annex 150 Note SARE-142, sent from the National Directorate of
Narcotics of the Ministry of Interior and Justice of Colombia to
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(14 Apr. 2004)

Annex 151 State Council of Colombia, Claudia Sampedro and Others,
Judgment on Appeal From the Administrative Tribunal of

Cundinamarca (19 Oct. 2004)

Annex 152 Comptroller General of the Republic of Colombia, Plan

Colombia: Fifth Evaluation Report (Dec. 2004)

570Annex 153 Republic of Colombia, Constitutional Court, Molina, Judgment
C-401/05 (14 Apr. 2005)

Annex 154 Diplomatic Note No. DDH 58003 from the Colombian Foreign
Ministry to the Executive Secretary of the Inter-American
Commission on Human Rights (18 Sept. 2005)

Annex 155 Republic of Colombia, Position Statement by Colombia to the
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to the Destruction in Colombia of Illicit Crops in the Frontier
Zones with Ecuador (8 June 2007)

Annex 156 Republic of Colombia, Ministry of Foreign Affairs, Press

Release (11 Nov. 2010)

571

Document Long Title

Reply of Ecuador

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