1. Introduction
Increasing pollution threatens human life and health, environmental sustainability, and biodiversity worldwide.Footnote 1 Among other forms of pollution, agrochemical pollution has become a pervasive issue with far-reaching impacts on ecosystems and human communities alike.Footnote 2 At the global scale, the World Health Organization (WHO) estimates that there are 3 million cases of pesticide poisoning each year and up to 220,000 deaths, primarily in developing countries.Footnote 3
The Food and Agriculture Organization (FAO) of the United Nations (UN) reported that globally, despite a plateau in recent years, pesticide use increased by nearly 50% compared to the 1990s.Footnote 4 This escalation is evident in the rising detection of pesticide residues in ground and surface waters. For example, the herbicide atrazine has been frequently detected at thresholds that exceed safe levels in the Midwest of the United States (US).Footnote 5 Similarly, in India, pesticide runoff has been linked to alarming declines in fish populations in the Punjab region, with an impact on biodiversity and local livelihoods.Footnote 6 In Switzerland, data published in 2019 demonstrates a significant health risk as chlorothalonil metabolites exceeded the authorized concentration in highly populated areas.Footnote 7 These numbers reflect an alarming trend of agrochemical over-reliance. The impact on human, animal, and environmental health underscores the urgent need to reform legal frameworks and practices beyond existing regulatory tools and remedies.Footnote 8
This article explores the potential for transitioning from a security-based approach to a human rights-based approach to address agrochemical pollution. In doing so, it highlights the difficulties of security-based regulation in addressing multiple exposures to risks – each risk being regulated in silos and without taking into account its cocktail effect. While the literature on environmental protection as an issue of human rights and state accountability is growing,Footnote 9 the legal challenges of agrochemical pollution remain under-explored.Footnote 10 The article addresses this gap. By aligning environmental imperatives with human rights mandates, the article explores the role of litigation and courts in enforcing state obligations in this context.
The article’s case law review and critical analysis focus on the European Court of Human Rights (ECtHR). The decisions of this Court represent a rich repository of legal principles influential within the Council of Europe Member States and resonate globally.Footnote 11 Its precedents serve as crucial benchmarks in human rights law.Footnote 12 The ECtHR is of interest in environmental matters as it has developed a relevant body of case law, even though the European Convention on Human Rights (ECHR)Footnote 13 does not explicitly enshrine a human right to a healthy environment. This focus of this article allows for a comprehensive exploration of how the Court interprets and applies the ECHR in environmental matters, shedding light on the evolving nature of human rights law in response to environmental challenges.
Furthermore, a human rights turn is currently unfolding regarding climate change. Proceedings that question state inaction in climate matters have multiplied, mobilizing human rights and highlighting the critical role of courts.Footnote 14 This article builds on the premise that protecting human rights in relation to agrochemical pollution raises similar issues to those identified in the climate change debate.Footnote 15 Historically, economic activity and development involving pollution through fossil fuels and agrochemical products have been considered a progressive factor and a source of wealth in domestic markets.Footnote 16 Agrochemical products encompass substances used in agriculture, which include pesticides, herbicides, fertilizers, and other chemical agents designed to enhance crop production and protection.Footnote 17 The fossil fuel and agrochemical industry narratives have evolved from denial to doubts, silencing, and dependency. Both industries have contributed to the production of ignorance by diffusing false information or sowing seeds of doubt regarding the harmfulness of their products.Footnote 18
The article’s analysis is timely, given the rise in climate change litigation, shifting the legal landscape and holding states and corporations accountable for environmental harm.Footnote 19 The ECtHR delivered its first climate change ruling in the KlimaSeniorinnen case.Footnote 20 The detailed judgment, third-party interventions,Footnote 21 and academic scholarshipFootnote 22 constitute a valuable resource for tackling agrochemical pollution. In particular, the KlimaSeniorinnen case offers insights into the procedural aspects of environmental litigation, including questions of standing, admissibility, and burden of proof, which are pivotal in shaping the legal landscape for future human rights claims in environmental contexts such as agrochemical pollution.
The limitations of the article relate to the anthropocentric focus of a human rights-based approach. As critically discussed in the existing literature, such an approach does not necessarily extend protection for the environment, nature, biodiversity, and animals based on their intrinsic value and standing.Footnote 23 A human rights approach to pollution may thus not suffice for preserving biodiversity and ecological integrity in the long term. Precedents at the intersection of human rights and the environment show that human rights-based litigation has succeeded somewhat in providing remedies for humans but has done less to address the broader ecological damage extending beyond immediate human concerns.Footnote 24 The Rights of Nature scholarship and unfolding case law is a critical parallel development in this regard.Footnote 25 While the anthropocentrism critique is also relevant for a human rights-based approach to agrochemical pollution, an in-depth discussion of the issues at stake goes beyond the scope of this article. Furthermore, considering the numerous dangerous impacts of agrochemical products, raising awareness and engaging individuals, policymakers, and courts for biodiversity preservation through a human rights-based approach appears to be a tool that is operational and worth pursuing in the immediate future.
Another limitation of the human rights-based approach is that litigation is currently circumscribed to claims against state actors, even though the main agrochemical polluters are private industries such as fossil fuel and agrochemical companies. While a discussion of the business and human rights approach goes beyond the scope of this article,Footnote 26 it is noteworthy that the horizontal effect of human rights is an unfolding issue.Footnote 27 It is also critical to highlight that many producers of phytosanitary products are based in Europe and are, therefore, indirectly subject to ECtHR jurisdiction and future precedents on agrochemical pollution.Footnote 28
This article proceeds as follows. It firstly describes the use of agrochemical products in today’s agriculture and their impact on health, environmental sustainability, and biodiversity (Section 2). The article highlights the drawbacks of the current security-based regulatory paradigm and explores the shift to a human rights-based approach in addressing agrochemical pollution (Section 3). The discussion then moves to the intersection of human rights and the environment, critically reflecting on the limits of the ECtHR case law in environmental matters (Section 4). To illustrate a potential way forward in addressing state (in)action, the article examines climate change litigation as a catalyst for change and demonstrates how human rights can inform approaches to agrochemical pollution (Section 5). The article concludes by assessing the transposability of climate litigation arguments to agrochemical pollution cases (Section 6).
2. The Use of Agrochemical Products and Their Impact
Agriculture is pivotal in ensuring global food security and economic stability.Footnote 29 Agrochemicals are used to protect crops from pests and diseases and to maximize yields.Footnote 30 The growing global population and the increasing demand for food are put forward to justify this productivist lens.Footnote 31
The agrochemical industry presents itself as an indispensable part of modern agriculture, framed as a partner providing farmers with essential tools to enhance crop productivity and efficiency.Footnote 32 However, the industry’s business growth into ‘BigChem’ is a more accurate description of reality. Around 2 million tons of pesticides (45% in Europe, 25% in the US, and 25% in other countries) are dispensed yearly for crop protection.Footnote 33
As agrochemicals are omnipresent in today’s agriculture, their impact on human health cannot be overlooked. Exposure to agrochemicals has been linked to various health issues, particularly for agricultural workers and communities living near treated areas.Footnote 34 Empirical studies illustrate the links between pesticide exposure and the increase or occurrence of six medical conditions: cancer, asthma, diabetes, Parkinson’s disease, leukaemia, and cognitive effects.Footnote 35
Agrochemicals also have an impact on animal health.Footnote 36 Chemical runoffs into water bodies can lead to aquatic toxicity, affecting marine and terrestrial wildlife.Footnote 37 Moreover, the accidental poisoning of non-target species through pesticides disrupts local fauna and can lead to long-term ecological imbalances.Footnote 38 A large-scale monitoring conducted in 2025 by the European Commission concluded that ‘surface waters are in a highly critical situation. Less than a half (39.5%) of the assessed EU surface water bodies are in good ecological status, and less than a third (26.8%) in good chemical status’.Footnote 39 A 2015 study reported that 44.7% of 1,566 surface water sites analyzed across the EU contained insecticide levels that exceeded regulatory acceptable concentrations.Footnote 40
Furthermore, agrochemicals affect the environment through soil degradation, water pollution, and the disruption of natural pest control mechanisms.Footnote 41 Agrochemicals can accumulate in the environment, leading to long-term ecological changes and ecosystem risks.Footnote 42 Products used for pest control often do not reach their target and dilute into the environment.Footnote 43 For example, according to an estimate, some 30,000 kilograms of herbicides pass into the Great Barrier Reef World Heritage Area annually.Footnote 44 In addition, biodiversity and ecosystem health are particularly vulnerable to agrochemical pollution.Footnote 45 The reduction of biodiversity caused by habitat destruction and species loss has far-reaching consequences on ecosystem services, such as pollination and natural pest control.Footnote 46 This loss affects environmental sustainability, threatens global food security, and affects human health.Footnote 47
Finally, the overuse of agrochemical products has an economic downside. In 2005, the economic and environmental losses resulting from the use of pesticides per year in the US were: public health – US$1.1 billion; pesticide resistance in pests – US$1.5 billion; crop losses caused by pesticides – US$1.4 billion; bird losses caused by pesticides – US$2.2 billion; and groundwater contamination – US$2.0 billion.Footnote 48
The widespread use of agrochemicals in agriculture was meant to respond to the global demand for food security and agricultural efficiency. However, considering the impact of these products on human and animal health, the environment, biodiversity, and the ecosystem, the question arises of how to legally prevent this impact.
3. From a Security to a Human Rights-based Approach to Agrochemical Management
Agrochemical products are governed by a complex framework of regulations with regard to their market access, distribution, and use in agriculture.Footnote 49 The traditional regulatory approach of states to pollution control is rooted in security and risk management paradigms while maximizing productivity in the name of food security.Footnote 50 This approach relies on top-down governance, focusing on risk–benefit analyses, containment of pollutants, and damage mitigation after the fact.Footnote 51 Based on command-and-control regulation, the legal tools employed include bans and numerical restrictions on certain pollutants, and management of waste and polluted areas based on the polluter pays principle (for example, nuclear power plants or industrial pollution).
The security-based approach is geared towards immediate human life and health concerns.Footnote 52 It does not engage with the long-term ecological and sanitary consequences of pollutants, their subtle, cumulative effects on biodiversity, and the potential indirect backlash on human life and health. Scientific standard setting and updating for regulatory purposes is also a key issue, although often neglected or contested.Footnote 53 Another core limitation of the security-based approach lies in its reactive nature: it often leads to action only after significant harm occurs, such as chemical spills in large-scale industrial accidents.Footnote 54
In a report of December 2023, a French parliamentary commission of inquiry notes ‘a collective failure’ to reduce pesticide use in France and deplores a ‘form of public powerlessness’ despite the repercussions of pesticide pollution on water quality and biodiversity.Footnote 55 Given the numerous threats to health and life, the environment, and biodiversity created by agrochemical products, it is imperative to reassess the existing security-based approach.Footnote 56 It is necessary to investigate alternative strategies that can legally control pollutants more effectively.
This article proposes a human rights-based approach to agrochemical pollution, which includes both ex ante and ex post effects.Footnote 57 The ex ante effect involves the proactive integration of human rights into policymaking and enforcement. This consists of the state’s obligation to respect, protect, and realize human rights.Footnote 58 This three-fold obligation requires states to refrain from interfering with the enjoyment of human rights, to prevent third parties from violating human rights, and to take necessary measures – including legislative, administrative, and budgetary actions – to ensure the realization of human rights. Notably, these obligations include a preventative component, as they call for pre-emptive state measures and thus ensure that potential violations are addressed before they occur. The ex post effect encompasses mechanisms through which individuals can exercise their human rights, including litigation;Footnote 59 it ensures that when rights are violated, individuals can access legal remedies and hold violators accountable. Litigation is a crucial tool for enforcing human rights, providing a means for redress, and promoting adherence to human rights standards. Together, these elements ensure a comprehensive approach that prevents violations and provides effective remedies when they occur, thereby enhancing the overall protection and realization of human rights.
Public health, as witnessed in legal scholarship and litigation, is an area of law in which a successful transition from a security to a human rights-based approach has occurred in the past.Footnote 60 Top-down governance, coercive measures, and a focus on biosecurity characterized the security-based approach in public health, particularly for infectious disease control.
The human rights turn in public health started with the HIV/AIDS epidemic in the 1990s.Footnote 61 During this period, the situation of those affected by HIV/AIDS highlighted the inadequacies of the traditional security-based approach to public health regulation.Footnote 62 Stigma and discrimination not only resulted in human rights violations but proved unproductive for public health protection as people avoided testing. Activists and advocates pushed for a more rights-based response, emphasizing respect for the individual’s dignity and rights, including access to healthcare and non-discrimination. The WHO and the Joint United Nations Programme on HIV/AIDS (UNAIDS) integrated human rights principles into their policies, recognizing that public health efforts must be grounded in respect for human rights to be effective. This movement laid the groundwork for broader application and litigation of human rights in public health. It became a precedent for addressing other health challenges, including access to healthcare, as a human right, emphasizing equality and non-discrimination, promoting participation and empowerment, and upholding accountability and transparency.Footnote 63
The human rights-based approach has since evolved to protect public health from the multiple threats that originate in non-communicable diseases (NCDs) such as diabetes, cancer, and cardiovascular diseases.Footnote 64 This human rights turn facilitated the adoption of the first legally binding international treaty to address NCDs in 2003, the WHO Framework Convention on Tobacco Control (FCTC).Footnote 65 The FCTC represents a significant milestone in global health governance and demonstrates how a human rights-based approach can lead to concrete legal frameworks that promote public health and protect the rights of the individual.Footnote 66
The example of public health highlights the critical importance and effectiveness of a paradigm shift from security to human rights. It provides a historical blueprint for reconceptualizing legal strategies to tackle the multiple threats originating from agrochemical pollution.
The hypothesis underlying this article is that a human rights-based approach to agrochemical pollution can be effectively formulated. To validate this hypothesis, the article examines the ECtHR case law in the two areas most relevant to this phenomenon: the Court’s traditional precedents in environmental matters and recent climate change litigation. By scrutinizing the ECtHR rulings, the article aims to illustrate how the Court has interpreted human rights in the context of environmental protection (Section 4) and climate change (Section 5). This analysis will provide insights into the efficacy and adaptability of a human rights-based approach to address the complexities of agrochemical pollution and its impact on human rights (Section 6).
4. Intersection of Human Rights and the Environment: The ECtHR’s Constrained Jurisprudence
The ECHRFootnote 67 does not expressly enshrine a right to a healthy environment. Nevertheless, the Court has been called upon to develop its case law in environmental matters.Footnote 68 It recognizes that harm to the environment and exposure to environmental risks can affect, at least by ricochet, the human rights enshrined in the Convention.Footnote 69 The right to a healthy environment has thus, to a certain degree, materialized in the case law of the ECtHR.Footnote 70 This right must be analyzed as a right that is not aimed at protecting nature but human safety. In its reasoning concerning environmental matters, the ECtHR has focused on physical integrity and quality of life, of which health is an essential determinant, to protect individuals against pollution and environmental risks from human activities.
The Court’s case law covers various issues, which include industrial activities and pollution, toxic waste, nuclear radiation, natural disasters, electromagnetic radiation, noise and air pollution, and soil and water contamination.Footnote 71 Environmental damage may violate the positive obligation to protect life (Article 2 ECHR)Footnote 72 or the negative and positive obligations deriving from respect for private and family life (Article 8 ECHR).Footnote 73 These substantive rights are supplemented by procedural guarantees, including the obligation to provide information (Articles 8 and 10 ECHR)Footnote 74 and access to justice (Articles 6 and 13 ECHR).Footnote 75
The resulting environmental standard paradoxically reveals a certain unity: based on the prevention of environmental damage that is likely to affect the enjoyment of the rights guaranteed by the Convention, this praetorian standard requires states to set up a general normative framework to prevent, control, and sanction environmental pollution.Footnote 76
However, findings of ECHR violations in the context of the environment are rare.Footnote 77 Environmental issues are reframed around the above-mentioned rights, leading to a patchwork of protection through fragmented case law.Footnote 78 Several characteristics contribute to the low number of violations recognized by the ECtHR. The first is symptomatic of the inadequacy of the Court’s traditional reasoning, which limits responsibility for protecting the environment under the ECHR. It is noticeable in the Court’s consideration of environmental damage, which conditions ECHR applicability. According to the ECtHR, environmental pollution must be linked directly to (potential) human harm to be considered a rights violation under the ECHR.Footnote 79 The ECtHR so far has refused to devote an autonomous legal status to the right to a healthy environment, a right which, for the time being, still enjoys only indirect and derived protection.Footnote 80
In the 2005 case of Kyrtatos v. Greece,Footnote 81 the plaintiffs’ efforts to protest against the demolition of a swamp by invoking Article 8 ECHR highlighted the challenges of using human rights to safeguard biodiversity.Footnote 82 The ECtHR rejected the claim, citing a lack of persuasive evidence that the damage to wildlife in the swamp infringed the plaintiffs’ rights. However, the Court acknowledged the possibility that the decision might have been different if the swamp had instead been a forest near the plaintiffs’ residence.Footnote 83 This observation suggests that ecosystem services and benefits, evident in a forest but less so in a swamp, could be considered part of an individual’s private and family life.Footnote 84 This reasoning opens avenues to connect biodiversity conservation with protecting human rights.
Another shortcoming relates to the Court’s rigorous interpretation of causality. The ECtHR persists in applying rules of evidence administration that do not facilitate the applicants’ task.Footnote 85 As Judge Zupančič points out in his partly dissenting opinion in Tătar v. Romania, the Court uses a ‘classic causal argument (which does not address the notion of uncertainty)’. Such an approach is inappropriate in the case of pathologies linked to the toxicity of certain substances. As Zupančič points out:
Unlike damage resulting from a road accident (where the damage may appear immediately or shortly after the harmful event and be attributable without any possible discussion as to the collision), toxic damage may not be immediate and, above all, may remain invisible for many years. This type of injury may be attributable to several factors and not necessarily to a single cause. It is well known that the specificity of modern pathologies lies in the absence of a ‘signature’ of the causal agent.
In other words, the judge thinks that ‘in the presence of these invisible risks, the classic concept of the causal link is an archaism’. He concludes, therefore, that ‘respect for private life is a paramount value, the defence of which, by the European courts, cannot be limited by the absence of absolute certainty, especially in the context of modern diseases’.Footnote 86
Once a rights infringement has been established, difficulties arise in determining the imputability of this infringement to the state and reviewing the proportionality principle. A general attitude of caution and restraint seems to be driving the ECtHR’s stance in this regard.Footnote 87 The requirement of a high threshold of seriousness regarding the infringement and recognition of a certain margin of appreciation to the states exemplify this stance.Footnote 88 States must protect life and respect for private life from ‘serious’,Footnote 89 ‘real and immediate’Footnote 90 environmental risks of which the authorities were or should have been aware.Footnote 91 As a result, the Court has not granted claims under Articles 2 and 8 ECHR where the alleged harm is negligible compared to the ecological risks inherent in life in any modern city.Footnote 92 One might wonder what level of severity would have to be reached regarding agrochemical pollution if the applicable standard of ecological risks is linked to the state of the art of modern agriculture.
Finally, scholarly literature underscores a range of critiques concerning the environmental jurisprudence of the ECtHR. It is criticized as being too procedural or supervisory, inclined to prioritize economic considerations over environmental aspects, marked by a liberal emphasis on risk information rather than risk prevention and too centred on individual rights rather than collective environmental concerns.Footnote 93 Another critique relates to the liberal logic on display, which promotes an environmental public order that allows a stabilized exercise of the freedom to carry out economic activities that are dangerous for the environment by balancing such activities with the rights and freedoms protected by the Convention.Footnote 94 This cautious approach reflects deference to state sovereignty in environmental matters, which has reduced the effectiveness of human rights as a tool for environmental protection.
5. Climate Change Litigation: A Catalyst for Change
Despite these criticisms regarding a human rights approach in traditional environmental cases, a global movement to initiate strategic climate litigation is ongoing.Footnote 95 While these proceedings develop various legal arguments, many mobilize human rights to engage state responsibility for their climate inaction.Footnote 96 The ECtHR is among the judicial actors involved.Footnote 97 As the ECHR is a living instrument, applicants argue for a dynamic interpretation of its provisions to address the human rights violations resulting from the climate crisis.Footnote 98 In April 2024, the ECtHR delivered a judgmentFootnote 99 and two decisionsFootnote 100 in the first three climate cases. Six other cases have been adjourned.Footnote 101 These cases highlight ‘how litigation is becoming an emblematic element of contemporary environmental advocacy when citizens and NGOs use the “weapon” of law as a mode of action’.Footnote 102 In the context of this article, these cases illustrate a potential trajectory and paradigm change towards a successful human rights-based approach, overcoming the chains of the traditional case law in environmental matters.
Before examining the Court’s responses and their transposability to agrochemical pollution, it is interesting to note that the Court handled the three cases together. They should – as explained by the former President of the ECtHRFootnote 103 – be read and analyzed in parallel. In these three cases, the Court first contextualized the evolution of the link between human rights and the climate crisis. It then took part in the unfolding judicial cross-fertilization process, citing decisions of UN committeesFootnote 104 and domestic courtsFootnote 105 that have also addressed this issue. Although the number of cases is still limited, their impact is nonetheless significant in that they are binding on all Council of Europe Member States based on the principle of res interpretata and have already been considered in the context of other supranational proceedings.Footnote 106
The first three decisions on the human rights implications of climate change enabled the Court to provide initial responses to issues that arise to a similar extent regarding agrochemical pollution. The remaining part of this article focuses on these responses and their transposability.
6. Transposing Human Rights Arguments to Agrochemical Pollution
6.1. Current Lack of Agrochemical-specific Court Rulings
Agrochemical pollution is a significant health risk, with one in six deaths worldwide linked to pollution-related illnesses.Footnote 107 Chemicals used in agriculture pose direct risks, such as poor water quality and health issues for farmers, and indirect risks by damaging biodiversity and ecosystems essential for human quality of life and well-being.Footnote 108
Despite these facts, courts historically have rarely addressed agrochemical pollution and have instead focused primarily on industrial incidents, environmental sacrifice zones, or disputes involving Indigenous peoples.Footnote 109 The ECtHR has not yet adjudicated cases that explicitly involve the impact on human rights of pollution through phytosanitary products.Footnote 110 This applies also to UN bodies but in a more nuanced way: (i) the Human Rights Committee recognized violations in cases of agrochemical pollution;Footnote 111 (ii) the UN Special Rapporteur on the issue of human rights obligations relating to the enjoyment of a non-toxic environment highlighted in his 2022 report that, despite extensive international regulations on chemicals,Footnote 112 most states fail to fulfil their obligationsFootnote 113 and leave human beings and ecosystems inadequately protected from their harmful effects.Footnote 114
It is therefore relevant to explore whether the ECtHR might recognize that the continuous exposure of populations to agrochemicals could violate the right to life (Article 2 ECHR) and respect for private and family life (Article 8 ECHR). The arguments developed in the ECtHR climate cases are particularly instructive, as they address similar environmental harm and human rights violations.
A growing number of authors argue that climate trials have led to several developments of interest, paving the way for the law and the courts to better grasp the issues raised by agrochemical pollution.Footnote 115 We share this view: the first three ECtHR climate cases, and notably the KlimaSeniorinnen case, provide valuable considerations for addressing the issue of agrochemical pollution and its impact on human rights.
6.2. Potential Impact of the ECtHR Climate Rulings
The human rights approach to tackling the climate crisis raises legal challenges regarding the impact of the climate crisis on the right to privacy,Footnote 116 the victim status determination – respectively, associations’ locus standi,Footnote 117 the role of scientific expertise – for example, with regard to the causal link,Footnote 118 the imminence requirement for defining positive obligations,Footnote 119 and the territorial jurisdiction of the ECtHR.Footnote 120 It also requires a rethinking of states’ margin of appreciation in environmental matters and the role of the subsidiarity and consensus principles.Footnote 121 This article analyzes the Court’s reasoning with regard to these issues and its transposability to agrochemical pollution.
Recognition of victim status and standing
As in the climate cases, agrochemical pollution embodies a question of large-scale health risks, which complicates the admissibility of victim status/locus standi, as an actio popularis is not permitted before the ECtHR.Footnote 122 In this respect, the KlimaSeniorinnen and the Carême cases provide clarification.
Although the third-party interventionsFootnote 123 and the literatureFootnote 124 focused on individual victim status and put forward arguments that would allow this condition to be met, the ECtHR did not recognize the status of individual victims in the KlimaSeniorinnen and Carême cases. It is interesting to note that although the KlimaSeniorinnen judgment did mention all climate-related decisions by UN committees,Footnote 125 it did not quote the particularly instructive passage from the Teitiota case, which concerns victim status when individuals, entire populations, or even countries are at risk.Footnote 126
While these obstacles are similar with regard to agrochemical pollution (because the phenomenon is so global that it affects everyone and raises the same risk of actio popularis), the status of individual victim might nevertheless be more easily admissible in cases of agrochemical pollution than in cases of climate change. In addition to the categories that are specifically affected, such as farmers or other workers, it is indeed possible to isolate particularly affected groups, such as those living close to agricultural or wine-growing areas, or even water consumers in significantly polluted regions. Such individuals can benefit from the victim status defined in Article 34 ECHR. On this issue, the Müllner case, which is currently pending before the ECtHR and addresses the case of a person who is specifically suffering from the effects of global warming because of a disability, will provide additional guidance.Footnote 127
The KlimaSeniorinnen ruling further offers interesting analytical keys on locus standi as the Court underlined that associations could take action to denounce the human rights violations to which its members are subject.Footnote 128 As the Court noted concerning climate change, ‘there has been an evolution in contemporary society as regards recognition of the importance of associations to litigate issues of climate change on behalf of affected persons’.Footnote 129 A similar line of argument applies to widespread pollution. As in the case of climate change, such pollution involves ‘intergenerational’ harm and the risk of ‘irreversibility’.Footnote 130 Furthermore, efforts to combat agrochemical pollution are confronted with an ignorance production driven by agrochemical companies comparable to those active in the climate field, making it necessary for associations to support such cases and be given standing.
The ECHR as a living instrument
The ECtHR has been willing to consider environmental dataFootnote 131 and understand legal concepts relating to climate issues in a dynamic way.Footnote 132 If most decisions on climate issues referred to scientific studies published in the climate field and environmental law treatiesFootnote 133 as part of a synergy of sources approach,Footnote 134 the ECtHR judgment in the KlimaSeniorinnen case is particularly pioneering in that respect. There, the judges not only set out in detail all the relevant international and comparative law texts in the ‘facts’ sectionFootnote 135 but also referred to many of them in the ‘law’ section – notably to the UN Framework Convention on Climate Change (UNFCCC),Footnote 136 the Paris Agreement,Footnote 137 the Glasgow Climate Pact,Footnote 138 the Sharm el-Sheikh Implementation Plan,Footnote 139 the Convention on Access to Information, Public Participation in Decision-making and Access to Justice in Environmental Matters (Aarhus Convention),Footnote 140 UN General Assembly Resolution 76/300 on the Human Right to a Clean, Healthy and Sustainable Environment,Footnote 141 and the Committee of Ministers of the Council of Europe Recommendation CM/Rec(2022)20 on Human Rights and the Protection of the Environment.Footnote 142 With regard to scientific data, the Court refers mainly to the findings of the Intergovernmental Panel on Climate Change (IPCC).Footnote 143 Such a development limits the margin of appreciation of states,Footnote 144 which has traditionally been considerable in environmental matters before the ECtHR.Footnote 145 The Court underlined indeed that:
the nature and gravity of the threat and the general consensus as to the stakes involved in ensuring the overarching goal of effective climate protection through overall greenhouse gas reduction targets in accordance with the Contracting Parties’ accepted commitments to achieve carbon neutrality, call for a reduced margin of appreciation for the States.Footnote 146
A similar trend applies to agrochemical pollution. Numerous international treaties,Footnote 147 especially the Kunming-Montreal Global Biodiversity FrameworkFootnote 148 – a biodiversity plan adopted during the 15th meeting of the Conference of the Parties (COP-15) of the Convention of Biological DiversityFootnote 149 – bind states in this area. In addition, many scientific studies demonstrate the impacts of pollutants on health and the environment.Footnote 150 This combination of legal framework and scientific data can enable the ECtHR to reduce the state margin of appreciation and interpret the ECHR in a dynamic way, recognizing the human rights violations that agrochemical pollution might entail. Using the latest scientific data can also allow the Court to depart from the concepts of threshold levels of exposure and acceptable risk, as these concepts are based on quantifiable data that may not account for the complexity and unpredictability of ecological systems and the cumulative ‘cocktail’ effect of different agrochemical products.
Assessing causality and imminence requirements
Agrochemical pollution, like the climate crisis, implies negative consequences for the environment and health in the long term, which complicates the assessment of the causality and imminence requirements. The prolonged time frame over or after which damage appears is a challenge. Furthermore, the issue of pesticide cocktails, adding to or multiplying their toxicity and impact, is complex to apprehend. In this respect, the ECtHR recalls in the KlimaSeniorinnen judgment that, in traditional environmental cases:
the measures taken, or omitted, with a view to reducing the impugned harm emanating from a given source, whether at the regulatory level or in terms of implementation, can … be specifically identified. In short, there is a nexus between a source of harm and those affected by the harm, and the requisite mitigation measures may be identifiable and available to be applied at the source of the harm.Footnote 151
The Court considers that this is not the case in climate matters. In particular, it noted that ‘combating climate change, and halting it, does not depend on the adoption of specific localised or single-sector measures. Climate change is a polycentric issue’.Footnote 152 With regard to the requirement of causation, the Court pointed out that ‘the duty to regulate not only relates to actual harm arising from specific activities but extends to the inherent risks involved’.Footnote 153 About the right to life in particular, the Court recognized that:
where the victim status of an individual applicant has been established …, it would be possible to assume that a serious risk of a significant decline in a person’s life expectancy owing to climate change ought also to trigger the applicability of Article 2.Footnote 154
These considerations correspond to the results of several academic studies that demonstrate that the assessment of the causality and imminence requirements must be understood in the light of the principles of prevention and precaution and, when it comes to long-term damage in particular, from an intergenerational perspective.Footnote 155 Indeed, several authors have shown that the ECtHR uses the principle of prevention, without necessarily expressly mentioning it, to assess state responsibility based on an imminent risk,Footnote 156 as well as, in rare cases, the principle of precaution, which allows potential risks to be considered.Footnote 157
The same challenges arise in the context of pollution and biodiversity loss. While the impact of agrochemical pollution on health and life has been documented, it can be measured only over the long term. This challenge requires the ECtHR to adhere to a systematic assessment of existing scientific evidence and consider this evidence in the light of the precautionary principle. Furthermore, most of the pollution emitted today is likely to persist in the environment and thus affect biodiversity and human rights over time, Footnote 158 which means that an approach that incorporates the principle of intergenerational equity is needed.
Territorial jurisdiction
Unlike the UN Human Rights Committee, which recognized states’ responsibility for their climate impact outside their territory,Footnote 159 the ECtHR refused to accept the definition of extraterritorial jurisdiction in climate matters in the Duarte case.Footnote 160
While biodiversity protection must also be considered globally, the more specific issue of agrochemical pollution does not seem to raise difficulties regarding territoriality as the consequences of pollution, in principle, can be geographically ascribed to the territory of a sovereign state.
Separation of power
Climate change and agrochemical pollution necessitate a political assessment of the various opposing interests – environmental and economic – at stake, raising questions about the separation of power. In the KlimaSeniorinnen case, the Swiss Federal Tribunal ruled that it is the legislator’s responsibility to adopt general and abstract norms and that the Court must limit itself to deciding individual disputes.Footnote 161 The Swiss government also put forward such an argument in its response to the ECtHR.Footnote 162 This line of reasoning has been criticized by academics.Footnote 163 Similarly the Court underlined that:
democracy cannot be reduced to the will of the majority of the electorate and elected representatives, in disregard of the requirements of the rule of law. The remit of domestic courts and the Court is therefore complementary to those democratic processes. The task of the judiciary is to ensure the necessary oversight of compliance with legal requirements’.Footnote 164
In addition, the Court strongly emphasized the discretion enjoyed by states in determining the measures to be adopted to implement the objectives set out in the KlimaSeniorinnen case.Footnote 165
Outlook
Human rights-based climate litigation has shown that courts can effectively address complex environmental challenges by holding states accountable for failing to mitigate harm. This legal reasoning can be transposed to agrochemical pollution cases. For instance, non-governmental organizations (NGOs) can adapt their climate litigation strategies to focus on the human rights impacts of chemical exposure.Footnote 166 The analysis of the first ECtHR climate cases provides a glimpse of the extent to which human rights litigation is likely to play a strategic and successful role in the context of agrochemical pollution as well. This leads us to wonder whether the following comments by legal scholar Heri on climate change litigation could apply mutatis mutandis to agrochemical pollution:
Even though these harms are perhaps unique in terms of their scale and structural nature, they are of urgent relevance to the work of human rights bodies like the ECtHR. … As a result, … ‘the question is no longer whether, but how, human rights courts should address the impacts of environmental harms’ and, specifically, climate change harms.Footnote 167
Such a conclusion also seems to result from Rodríguez-Garavito and Boyd’s article, which states:
Rights-based litigation does not offer a comprehensive solution to either of these pressing problems. However, it is a tool that can be used by people, communities, and organizations concerned about these twin crises to try and accelerate action and achieve accountability.Footnote 168
Building on these perspectives, it becomes evident that a human rights-based approach is not the only available legal pathway for addressing the pressing issues of agrochemical pollution and its impact on human, animal, and environmental health and biodiversity. However, the successful trajectory of human rights in health and climate change litigation demonstrates its potential as a strategic and effective avenue. By leveraging this established legal framework, stakeholders can pursue accountability and action on agrochemical pollution in a manner that is immediately available and aligned with broader international legal trends. This approach provides a compelling, pragmatic, and adaptable tool for addressing these multifaceted global challenges.
7. Conclusion
The current state of affairs regarding agrochemical pollution testifies to the inadequacy of existing legal frameworks. It reveals a pattern of insufficient pre-emptive measures, delayed responses, and incomprehensive monitoring and long-term health studies. The blueprint provided by the paradigm shift in public health and climate change opens avenues for reconceptualizing agrochemical pollution through human rights. The legal strategies established in climate cases offer a robust foundation for tackling the harm caused by agrochemicals from a human rights perspective.
This article highlights that the ECtHR’s arguments in its recent climate precedents relating to locus standi, the role of scientific data and its impact on the principle of causality, and the role of international environmental law in defining the scope of obligations or the state margin of appreciation can be transposed to the issue of agrochemical pollution. Despite the weaknesses and limitations of human rights-based approaches, the unfolding jurisprudence in climate litigation thus serves as a critical resource for developing effective legal responses to agrochemical pollution.
The theoretical bedrock of a human rights approach to agrochemical pollution is complex and multifaceted. It encompasses substantive and procedural rights that states must respect, protect, and fulfil, which necessitates regulation in the broadest sense. More concretely, based on the ECtHR case law, states must take adequate measures to prevent and control environmental pollution caused by hazardous chemicals. These obligations include regulating and controlling industrial activities, preventing the uncontrolled release of pollutants, monitoring health and environmental impacts, guaranteeing access to information, and providing effective remedies for individuals harmed by pollution.
While the ECtHR has yet to focus on agrochemical pollution from a human rights perspective, domestic law developments in Europe illustrate the challenges in addressing this phenomenon through law outside the human rights sphere. In France, the judiciary has addressed pesticide impacts on human health, the environment, and biodiversity through criminal and administrative law. In June 2023, the Administrative Tribunal of Paris found the French state guilty of the collapse of biodiversity in the case Justice pour le Vivant.Footnote 169
Despite our initial finding that human rights can be used as a tool to address agrochemical pollution, such a paradigm change needs to be grounded in further research. More scholarly work is required to reveal the potential of a human rights approach to pollutants as a substitute or parallel tool for a nuanced security-based approach. One complexity to be addressed lies in the conflict between human rights on the one side and rights protected by international trade law on the other, as explained in the business and human rights literature.Footnote 170 As with other areas where conflicts of rights appear (such as in the pharmaceutical and food industries), the complexity in legal analysis lies in the confrontation between two different orders of rights.Footnote 171
Finally, future research must consider the role of the numerous stakeholders involved, which include consumers, farmers, industries, scientists, animals, and the environment. The potential of a ‘one health – one right’ approach for regulating pollutants might offer a more holistic theoretical perspective and practical tool.Footnote 172 In both the human rights and the security-based approach to agrochemicals, one of the pressing questions to be addressed pertains not only to the role of the state but also to the accountability of risk-creating industries in producing, advertising, selling, and employing such products.Footnote 173
Acknowledgements
We thank Anna Galmiche for her valuable research assistance, and also express gratitude for the constructive remarks and suggestions provided by the anonymous peer reviewers.
Funding statement
Not applicable.
Competing interests
The authors declare none.