Category: Loss & damage

Categories
Adaptation Climate-induced displacement Domestic court Emissions reductions/mitigation Imminent risk Loss & damage Switzerland

Tétaz v. Canton of Valais

Summary:
On 27 May 2026, a case was brought against the Swiss canton of Valais concerning its liability for the Blatten landslide disaster, which took place one year previously, on 28 May 2025. On that date, the collapse of the Birch glacier destabilized the mountainside above the village, the Petit Nesthorn, causing a landslide of ice, mud, and debris that buried 90% of the village of Blatten in Valais’s Lötschental valley. Although the residents of the village were evacuated, the events resulted in one death. In addition, 130 houses as well as the local church were swept away and buried under debris 200 m thick.

One year after the disaster, legal collective “Avocat.e.s pour le Climat” brought a case on behalf of Jean-Marc Tétaz, a philosopher and theologian who lost his home and his life’s work, a library comprising 5000 sources, as well as ongoing research work and handwritten family memoirs, in the disaster. In a conciliation request filed with the municipal court of Sion, he claims the balance of damage not covered by liability insurance, including for the loss of his books, manuscripts, and work notes, as well as lost earnings from publishing projects that cannot be completed. The damage claim amounts to 211,900 Swiss Francs.

The case reportedly argues that the canton of Valais failed act to avoid the disaster or provide information to the public despite having been aware of the risks since 2022, when an “imminent danger” was identified, with a collapse deemed “very likely”, by scientists from the Swiss Federal Institute for Forest, Snow and Landscape Research, who modeled the potential consequences of a landslide at the Petit Nesthorn. According to the plaintiff in this case, the canton of Valais dismissed the scientists’ finding and failed to inform local residents of the dangers, which would have allowed him to relocate his library.

The plaintiff links the glacial instability and permafrost thaw that caused the Blatten disaster with climate change, citing scientific studies that identify climate change as having a role in the disaster. He argues that the cantonal government negligently ignored the risks given its lack of an ambitious climate policy.

More information on this case, and its legal foundations, will be added when it becomes available.

Suggested citation:
Municipal court of Sion, Tétaz v. Canton of Valais, conciliation request filed 27 May 2026.

Last updated:
30 May 2026.

Categories
Adaptation African Court on Human and Peoples' Rights Business responsibility / corporate cases Children and young people Children's rights/best interests Climate activists and human rights defenders Climate-induced displacement Deforestation Disability and health-related inequality Elderly Emissions reductions/mitigation Environmental racism Evidence Extreme poverty Farming Gender / women-led Human dignity Indigenous peoples rights Indigenous peoples' rights Loss & damage Minority rights Non-discrimination Paris Agreement Participation rights Private and family life Prohibition of torture Renewable energy Right to a healthy environment Right to assembly and association Right to development and work Right to education Right to freedom of expression Right to health Right to housing Right to life Right to property Right to subsistence/food Rights of nature Sea-level rise Self-determination Standing/admissibility Victim status Vulnerability

African Court on Human and People’s Rights Climate Advisory Opinion

Summary:
On 2 May 2025, a request for an advisory opinion on climate change was submitted to the African Court on Human and People’s Rights. The request was submitted by the Pan African Lawyers Union (PALU), in collaboration with the African Climate Platform, and other African Civil society Organizations including the Environmental Lawyers Collective for Africa, Natural Justice and resilient40, and seeks clarification of States’ obligations in the context of climate change.

Submitted under article 4 of the Protocol to the African Charter on Human and People’s Rights on the establishment of an African Court on Human and People’s Rights and Rule 82(1) of the Rules of the African Court on Human and Peoples Rights, the request submits that “[a]cross the continent, Africans are suffering the consequences of climate change, whether from rising temperatures, unrelenting droughts, catastrophic floods, vanishing biodiversity, or threats to livelihoods. Climate change in Africa has had prior, current and will have future consequences that impact the enjoyment of numerous rights.”

The request sets out impacts, disaggregating them region-by-region and in terms of the groups of people most affected by climate change (mentioning women and girls, children, the elderly, Indigenous peoples, and environmental human rights defenders in particular).

The request then goes on to discuss several issues of law, beginning with issues of admissibility and jurisdiction and then relying on a wide range of rights and instruments, namely:

  • a) the Constitutive Act of the African Union
  • b) the African Charter for Human and Peoples Rights (‘Banjul Charter’), especially articles 2, 3, 4, 5, 8, 9, 10, 11, 12, 14, 16, 17, 18, 19, 20, 21, 22, 23, 24, 60 and 61
  • c) African Union Convention for the Protection and Assistance of Internally Displaced Persons in Africa (Kampala Convention)
  • d) Protocol to the African Charter on Human and Peoples’ Rights on the Rights of Women in Africa (Maputo Protocol)
  • e) The African Charter on the Rights and Welfare of the Child
  • f) The Revised African Convention on Conservation of Nature
  • g) Any other Relevant Instrument.

In doing so, PALU invites the Court to consider international climate change law, including the UNFCCC, the Kyoto Protocol and the Paris Agreement as well as the UN Conventions on Combatting Desertification and on Biological Diversity.

Rights invoked in more detail:
PALU submits that “a rights-based climate approach is needed to address the challenges posed by climate change” and that the human rights framework “provides a robust legal framework upon which the Court may rely to define States’ responsibilities and duties in the context of climate change […] because the Charter clearly provides for collective rights and the explicit protection of the right to a healthy environment.” PALU accordingly invites the Court to consider the following provisions of the Banjul Charter:

  • Articles 2 and 3 (equality and non-discrimination)
  • Article 4 (right to life and inviolability of the human person)
  • Article 5 (right to respect for dignity and prohibition of all forms of exploitation and degradation, including slavery and torture)
  • Article 8 (freedom of conscience and religion)
  • Article 9 (freedom of information and opinion)
  • Article 10 (freedom of association)
  • Article 11 (freedom of assembly)
  • Article 12 (freedom of movement, residence and asylum; prohibition of mass expulsion)
  • Article 14 (right to property)
  • Article 16 (right to health)
  • Article 17 (right to education)
  • Article 18 (protection of the family, prohibition of age and gender discrimination)
  • Article 19 (equality of peoples, prohibition of domination)
  • Article 20 (right of peoples to existence and self-determination)
  • Article 21 (right of peoples to freely dispose of their wealth and natural resources)
  • Article 22 (right of peoples to their economic, social and cultural development)
  • Article 23 (right of peoples to national and international peace and security)
  • Article 24 (right of all peoples to a general satisfactory environment favorable to their development)
  • The request also discusses the implied rights to food and shelter.

Issues for determination:
PALU submits the following issues for determination by the Court (paraphrased):

(a) Whether the Court can be seized with the question of obligations concerning climate change under the Banjul Charter and other relevant instruments?

(b) Whether the Court can interpret and lay down applicable custom and treaty law regarding States’ obligations and duties in the context of climate change?

If these questions are resolved in the affirmative, the Court is invited to further determine:

(a) What, if any, are States’ human and peoples’ rights obligations to protect and safeguard the rights of individuals and peoples of the past (ancestral rights), and present and future generations?

(b) Whether States have positive obligations to protect vulnerable populations including environmental human rights defenders, indigenous communities, women, children, youth, future generations, the current generation, past generations, the elderly and people with disabilities from the impact of climate change in line with the relevant treaties?

(c) What human rights obligations do States have to facilitate a just, transparent, equitable and accountable transition in the context of climate change in Africa?

(d) What are the obligations of African States in implementing adaptation, resilience and mitigation measures in response to climate change?

(e) What, if any, are applicable human rights obligations of States to compensate for loss, damage and reparations?

(f) What responsibilities, if any, do African States have in relation to third parties, including international monopolies, multinational corporations and non-state actors operating on the continent, to ensure that international and regional treaties and laws on climate change are respected, protected, promoted and implemented?

(g) What, if any, is the nature of the obligations on African States to cooperate with other states especially historical emitters to limit global warming to below the 1.5°C threshold, to avert an existential climate crisis for present and future generations on the continent?

Further reading:
For more information on the advisory opinion request, see this post by Yusra Suedi.

Suggested citation:
African Court on Human and Peoples’ Rights, Request for an advisory opinion on the human rights obligations of African states in addressing the climate crisis, filed 2 May 2025 (pending).

Last updated:
23 May 2025

Categories
Biodiversity Business responsibility / corporate cases Chile Domestic court Loss & damage Paris Agreement Right to a healthy environment Uncategorized

State Defense Council vs. Quiborax S.A.

Summary:
On 2 July 2024, a complaint was filed by the public prosecutor of Antofagasta, representing the State of Chile, against Quiborax S.A., a limited liability company in the mining, agrochemical and energy sectors that produces and exports boric acid. The case concerns ulexite mining in the surface salt deposits in the Salar de Surire, located in the commune of Putre, Region of Arica and Parinacota (the ‘Salar’), and related environmental damage. This includes permanent damage to the Salar itself, alterations of runoff and flooding patterns, a loss of supporting, regulating and cultural ecosystem services, serious habitat alterations and losses, and biodiversity and environmental impacts. This resulted in continuous, cumulative, permanent and irreparable environmental damage to an iconic national and international protected area. The State sought compensation, mitigation and risk reduction measures. In doing so, it relied on Section 19 Nº 8 of the Chilean Constitution, which recognizes the right to live in an environment free of pollution, mandating the State to ensure that this right ‘is not affected and to protect the preservation of nature’, while its subsection 2° confers power to the legislator to ‘establish specific restrictions to the exercise of certain rights or freedoms to protect the environment’.

In doing so, the State cited principles of conservation and sustainable development, and Chile’s international obligations including the Convention for the Protection of the Flora, Fauna and Natural Scenic Beauty of the countries of the Americas (Washington Convention); the Convention on Biological Diversity; the Convention on Biological Diversity; the Convention on Wetlands of International Importance (RAMSAR Convention); the Convention on the Conservation of Migratory Species of Wild Fauna; the Convention on the Protection of World Cultural and Natural Heritage; the Convention on the Conservation of Migratory Species of Wild Fauna; and the Convention on the Protection of World Cultural and Natural Heritage, the UNFCCC, and the Paris Agreement as well as Chile’s Nationally Determined Contribution under that framework.

The State also invoked:

the multiplier effect of climate change and the need to consider this liability for environmental damage, as it constitutes an unavoidable context that must be taken into account, given its capacity to enhance and reinforce the short, medium and long term effects of impairments, deterioration or losses inflicted on environmental components. In this sense, climate change multiplies the effect of impairments, deterioration or losses affecting the regulation or support services provided by abiotic components, such as soil or water or ecosystems themselves, especially threatening unique or singular ecosystems, valuable for their expression of biodiversity. This is precisely what the sixth report of the United Nations Intergovernmental Panel on Climate Change (from now on ‘the IPCC’) on the physical basis of climate change, published in August 2021, has revealed in relation to the environment and sustainable development. It is therefore urgent, on the one hand, to determine the exact influence of climate change on this degraded ecosystem as the amount of rainwater from the summer rains increases, and, on the other hand, to strive to conserve a climatic refuge such as Surire, which sustains the biodiversity not only of the region and the country, but also of the entire world.

Status of the case:
Pending

Last updated:
12 February 2025

Categories
Adaptation Climate-induced displacement Domestic court Indigenous peoples' rights Kenya Loss & damage Non-discrimination Right to life Right to property

Legal Advice Centre T/A Kituo cha Sheria & Anor v. Attorney General and 7 Others (Iten ELC Petition No. 007 of 2022)

Summary:
In 2022, a case was filed in Kenya on behalf of members of indigenous Ilchamus and Tugen communities living on the shores of Lake Baringo. Due to flooding, Lake Baringo has doubled in size since 2010. The plaintiffs assert that, as residents of the area, they are victims of climate change-related flooding, which in turn has caused displacement, deaths and harm to property. The petitioners allege violations of their constitutional human rights as well as violations of the Kenyan government’s duties under the domestic Climate Change Act. Drawing on a 2021 government report that identified climate change as the main cause of flooding in the area, the plaintiffs seek to — in the words of their lead attorney, Omondi Owino, “enforce the climate change duties of public officials”.

The petitioners’ motion for the Supreme Court of Kenya to create a three-judge Environment and Land Court (ELC) panel to hear the case was allowed. A hearing in the case — which alleges that government officials “failed, refused, or neglected” to “anticipate, prevent, or minimize” the impacts of climate change — was held on 24 October 2023 at the ELC in Iten. Government lawyers have reportedly contested the claims and the plaintiffs’ claims for damages, arguing that Kenya’s contribution to global climate change is minimal.

Suggested citation:
Environment and Land Court (ELC) of Iten, Legal Advice Centre T/A Kituo cha Sheria & Anor v. Attorney General and 7 Others, Petition No. 007 of 2022.

Categories
2023 Biodiversity Children and young people Deforestation Domestic court Emissions reductions/mitigation Farming Indigenous peoples' rights Loss & damage Public trust doctrine Right to a healthy environment Sea-level rise Separation of powers Standing/admissibility United States of America Victim status Vulnerability

Navahine F., a Minor v. Dept. of Transportation of Hawai’i et al.

Summary:
In January 2022, fourteen young people filed suit against the Department of Transportation of the US state of Hawai’i (HDOT), its Director, the state’s Governor, and the State itself. In Hawai’i Circuit Court, they alleged that the state’s transportation system violated the Hawai‘ian Constitution’s public trust doctrine and the right to a clean and healthful environment that it enshrines. The plaintiffs argued that the state and its authorities had “engaged in an ongoing pattern and practice of promoting, funding, and implementing transportation projects that lock in and escalate the use of fossil fuels, rather than projects that mitigate and reduce emissions”. Arguing that Hawai’i was the most carbon-dependent state in the nation, they sought declaratory and injunctive relief. They made a variety of arguments about the destruction of the Hawai’ian environment, coral reefs, native species of plants and marine life, and beaches; about their health and well-being, including about climate anxiety and about existing health conditions that are aggravated by the effects of climate change; about flooding and its impact on their ability to go to school; about water and food security, including impacts on traditional food sources, traditional and indigenous ways of life and culture; about wildfires; and about climate anxiety.

Claims made:
The plaintiffs note that Article XI, section 1 of the Hawai’i Constitution requires Defendants “[f]or the benefit of present and future generations,” to “conserve and protect Hawai’i’s natural beauty and all natural resources.” Article XI, section 1 further declares that “[a]ll public natural resources are held in trust by the State for the benefit of the people.” The Constitution also explicitly recognizes the right to a clean and healthful environment. Noting the special vulnerability of Hawai’i to climate-related ecological damage, including from sea-level rise, and the disproportionate harm to children and youth, including the lifetime exposure disparities concerning extreme events such as heat waves, wildfires, crop failures, droughts, and floods, they allege that the state of Hawai’i, through its Department of Transportation, has “systematically failed to exercise its statutory and constitutional authority and duty to implement Hawai’i’s climate change mitigation goals and to plan for and ensure construction and operation of a multimodal, electrified transportation system that reduces vehicle miles traveled and greenhouse gas emissions, and helps to eliminate Hawai’i’s dependence on imported fossil fuels”.

Ruling on Motion to Dismiss:
On 6 April 2023, the First Circuit Court rejected the respondent’s motion to dismiss the case for failure to state a claim. The state had argued that the public trust doctrine did not apply to the climate, “because climate is not air, water, land, minerals, energy resource or some other “localized” natural resource.” It had also argued that any efforts by the state would not have an impact on climate change given the scale of the problem.

The Court held in this regard that, in any event, the state as trustee had an obligation to keep its assets, i.e. its trust property, from falling into disrepair. It thereby rejected the argument that climate change was “too big a problem” and the idea that the state had no obligation to reasonably monitor and maintain its natural resources by reducing greenhouse gas emissions and planning alternatives to fossil-fuel heavy means of transportation. The Court also recognized that “the alleged harms are not hypothetical or only in the future. They are current, ongoing, and getting worse.”

On the argument that the applicants did not have a sufficient interest in the case, the Court held that the plaintiffs “stand to inherit a world with severe climate change and the resulting damage to our natural resources. This includes rising temperatures, sea level rise, coastal erosion, flooding, ocean warming and acidification with severe impacts on marine life, and more frequent and extreme droughts and storms. Destruction of the environment is a concrete interests (sic).”

Finding that arguments based on the political question doctrine were premature in this case, and citing case-law finding that this doctrine does not bar claim based on public trust duties, the Court denied the motion to dismiss the case.

Trial date set:
It was announced in August 2023 that trial dates for this case had been scheduled for 24 June-12 July 2024 at the Environmental Court of the First Circuit for Hawai’i. This would make this only the second-ever constitutional rights climate case to go to trial in the United States, after the Held and others v. Montana case. The case will be heard by First Circuit Judge John Tonaki.

Settlement Agreement:
On 20 June 2024, Hawai’i officials announced a groundbreaking Settlement Agreement with plaintiffs, marking a significant milestone. The Court approved the historic Navahine Agreement as fair and in the best interests of the youth plaintiffs. This landmark Agreement upholds children’s constitutional rights to a climate capable of sustaining life and mandates transformative changes in Hawai’i’s transportation system.

The Agreement emphasises HDOT’s responsibility to preserve Hawai’i’s public trust resources and ensure a clean and healthy environment for all residents. By 2045, HDOT is committed to achieving zero emissions across all modes of transportation, including ground, sea, and interisland air travel. The Agreement also includes numerous provisions for immediate and ongoing action by HDOT, such as establishing a Greenhouse Gas Reduction Plan, creating designated units and roles within HDOT, forming a youth council, improving transportation infrastructure budgeting processes, and making immediate, ambitious investments in clean transportation infrastructure. The Court will retain jurisdiction over the agreement until 2045 to oversee compliance with its terms.

This Settlement Agreement sets a precedent as the first of its kind, where government defendants collaborate with youth plaintiffs to address constitutional climate concerns. It commits to the systemic decarbonization of Hawai’i’s transportation sector, aiming to significantly reduce greenhouse gas emissions and lessen dependence on fossil fuels.

Further information:
For the ruling of the First Circuit Court, see here. For the text of Settlement Agreement, see here.

Suggested citation:
First Circuit Court of the State of Hawai’i, Navahine F., a Minor v. Dept. of Transportation et al., Civ. No. 1CCV-22-0000631, ruling of 6 April 2023.

Last updated:
24 June 2024

Categories
Adaptation Domestic court Imminent risk Loss & damage Right to a healthy environment Right to health Right to life Right to property Uganda

Tsama William & 47 Ors v. Uganda

Summary:

The case was initiated following multiple landslides that occurred in December 2019 in the Bududa district in Eastern Uganda, in an area that is prone to landslides, which the applicants allege were exacerbated by climate change. The applicants claim that the landslides resulted in their displacement from their homes, killed their relatives and destroyed their property and the environment.

The applicants brought the case against the Ugandan government, the environmental authority and the local government of Bududa before the High Court of Uganda seeking orders for protective measures and compensation.  

Claims:

The applicants claim that the respondents have violated their positive obligations under statutory law to protect the applicants from recurrent landslides. They argue that the respondents’ failures to put in place an effective machinery for dealing with landslides and promptly warn the applicants about known risks, violated their fundamental rights to life, a clean and healthy environment, property, and physical and mental health. Aside from declaratory relief, the applicants claim a sum of 6.8 billion Ugandan Shillings as compensation for loss of life, destruction of property, physical and mental harm, as well as the cost of resettlement to safer areas.  The applicants further allege that the risk of future landslides owing to extreme weather events caused by climate change requires the respondents to take measures to relocate and resettle the applicants.  

This case is about adaptation to environmental risks (i.e. it is broader than climate adaptation), since the applicants principally rely on evidence that the problem of recurring landslides in the Bududa district has been going on since the beginning of the 20th century. However, the applicants rely on climate change as one among the factors contributing to the landslide risks they had previously faced and are likely to face in the future, as well as their vulnerability.  

Links:

The case documents are accessible via Climate Case Chart. For petition submitted by the applicants to the High Court of Uganda see here.

For replies by the respondents, see here and here.

Status of the case: The case is pending before the High Court of Uganda.

Last updated: 03 August 2023.

Categories
Adaptation Biodiversity Children and young people Climate activists and human rights defenders Climate-induced displacement Deforestation Emissions reductions/mitigation Evidence Gender / women-led Indigenous peoples rights Indigenous peoples' rights Inter-American Human Rights System Loss & damage Paris Agreement Right to a healthy environment Right to health Right to life Right to property Rights of nature Vulnerability

Climate Advisory Opinion of the IACtHR (OC 32/2025)

Summary:
On 3 July 2025, the Inter-American Court of Human Rights (IACtHR) issued its long-awaited advisory opinion on climate change, at the request of the governments of Chile and Colombia.

Advisory opinion request:
On 9 January 2023, Colombia and Chile jointly filed a request for an advisory opinion on the climate emergency and human rights to the IACtHR. The two governments requested clarification of the scope of States’ obligations, both in their individual and collective dimensions, in responding to the climate emergency within the framework of international human rights law, taking into account the different effects that climate change has on people in different regions and on different population groups, nature and human survival. The governments asked the Court to answer a series of questions grouped into six thematic areas, namely on:

A. The scope of States’ obligations to protect and prevent, including regarding their obligations to mitigate, adapt, regulate and monitor, and their response to loss and damage;

B. States’ obligations to protect the right to life given the existing climate science, and taking into account the right of access to information and transparency of information, including under the Escazú Agreement;

C. States’ obligations with respect to the rights of children and new generations, given especially the vulnerability of children;

D. On the State’s obligations concerning consultative and judicial procedures, taking into account the limited remaining carbon budget;

E. The protective and preventative obligations concerning environmental and land rights defenders, as well as women, indigenous peoples and Afro-descendant communities; and

F. Shared and differentiated obligations and responsibilities in terms of the rights of States, the obligation of cooperation and given the impacts on human mobility (migration and forced displacement of people).

Extended summary of the request:
In their request to the IACtHR, the two governments submitted that they are already dealing with the consequences of the climate emergency, including the proliferation of droughts, floods, landslides and fires. These, they submitted, underscore the need for a response based on the principles of equity, justice, cooperation and sustainability, as well as human rights. The two governments noted that climate change is already putting humans and future generations at risk, but that its effects are not being experienced uniformly across the international community. Instead, given their geography, climatic conditions, socioeconomic conditions and infrastructure, they are particularly being felt in the most vulnerable communities, including several countries in the Americas. They emphasized that these effects are not proportionate to these countries’ and communities’ contribution to climate change.

The governments, in their request, emphasized the relevance of the right to a healthy environment, as well as other interrelated substantive and procedural rights (affecting life, human survival and future generations). They reviewed the existing scientific evidence concerning the impacts and progression of climate change from the IPCC, and noted the vulnerability of the Andean region. The two governments referred to the 2017 Advisory Opinion of the IACtHR, which recognized the right to a healthy environment as an autonomous and individual right, and referred to the negative effects of climate change. However, they argued, there is a need to further clarify the human rights impacts of climate change, and corresponding obligations. In this regard, they raised the existence also of collective rights for the protection of nature under international human rights and environmental law, and cited the need to protect fundamental biomes like the Amazon and to understand States’ shared but differentiated responsibilities in a way that copes with loss and damage. The two governments invited the Court to set out clear standards against the background of litigation and related developments.

Consultation procedure:
In accordance with the Rules of Procedure of the IACtHR (Art. 73(3)), all interested parties (individuals and organizations) are invited to present a written opinion on the issues covered in the advisory opinion request. The President of the Court has established 18 August 2023 as the deadline for doing so. More information is available here.

Advisory opinion of 3 July 2025:
On 3 July 2025, following an oral hearing, the IACtHR issued its advisory opinion in these proceedings (in Spanish, with the text in English to follow). In a 234-page opinion, the Court addressed the questions raised by the governments of Chile and Colombia in their request.

The advisory opinion covers a wide range of relevant issues and obligations, and provides in-depth clarifications of the legal issues raised. It covers, in short:

  • The procedure, competence of the Court and admissibility of the request, as well as a number of other preliminary considerations, including about the (scientific and other) sources used by the Court and the scope of the opinion.
  • The facts of the climate emergency, including its causes, differential contributions of different actors, and its impacts on natural systems, humans, vulnerable territories and ecosystems, as well as the need for urgent action, the possibilities and need for mitigation, the need for adaptation, and the seriousness of climate impacts.
  • The complexity of required responses, including discussions of resilience and sustainable development as a vehicle for protection of both human rights and the environment.
  • The international legal framework around climate change, applicable norms and frameworks, including international investment law, human rights, international environmental law and climate change treaties. The Court also reviewed the case-law of other adjudicators in the context of climate change.
  • The obligations of States in the context of the climate emergency, including the scope of human rights obligations to respect rights, protect rights (including a reinforced due diligence obligation), and the obligation to take measures to ensure progressive realization of economic, social and cultural rights. This includes discussion of various substantive rights, including particularly the right to a healthy environment but also the rights to life, physical integrity, health, private and family life, property and home, freedom of movement and residence, water and food, work and social security, culture and education. The advisory opinion also includes consideration of procedural rights and the link between these rights and democracy, the right to science and recognition of local knowledge, the right of access to information (and combatting disinformation), the right to political participation and access to justice as well as protection of environmental defenders and equality and non-discrimination norms. In this latter regard, the opinion considers the differential protection owed to children and youth, to Indigenous and tribal peoples, Afrodescendant communities, peasants and those involved in fisheries. It also considers the differential effect of climate change and the implications for fight against poverty.

Opinion of the Court:
Appended to the Court’s extensive consideration of the relevant issues and obligations is its concrete opinion, which reads as follows (translation from the original Spanish, to be replaced with the English-language translation by the Court once available):

THE COURT DECIDES
Unanimously, that:

It is competent to issue the present Advisory Opinion, in the terms of paragraphs 14 to 23.

AND IS OF THE OPINION
Unanimously, that:

  1. According to the best available science, the current situation constitutes a climate emergency due to the accelerated increase in global temperature, produced by diverse activities of anthropogenic origin, undertaken unequally by the States of the international community, which incrementally affect and seriously threaten humanity and, especially, the most vulnerable people. This climate emergency can only be adequately addressed through urgent and effective actions for mitigation, adaptation and progress towards sustainable development, articulated with a human rights perspective, and under the prism of resilience, in the terms of paragraphs 183 and 205 to 216.

    Unanimously, that:
  2. By virtue of the general obligation to respect rights, States have the obligations indicated in paragraphs 219 to 223.

    Unanimously, that:
  3. Under the general obligation to ensure rights, States have an obligation to act in accordance with a standard of enhanced due diligence to counteract the human causes of climate change and protect people under their jurisdiction from climate impacts, in particular those who are most vulnerable, in the terms of paragraphs 225 to 237.

    By six votes in favor and one against, that:
  4. By virtue of the general obligation to ensure the progressive development of economic, social, cultural and environmental rights, States must allocate the maximum available resources to protect persons and groups who, because they are in situations of vulnerability, are exposed to the most severe impacts of climate change, in the terms of paragraphs 238 to 243.
    Judge Patricia Pérez Goldberg dissents.

    Unanimously, that:
  5. By virtue of the general obligation to adopt domestic law provisions, States must integrate into their domestic legal framework the necessary regulations to ensure the respect, guarantee and progressive development of human rights in the context of the climate emergency, in the terms of paragraphs 244 to 246.

    Unanimously, that:
  6. By virtue of the obligation to cooperate, the States are obliged to cooperate in good faith to advance in the respect, guarantee and progressive development of human rights threatened or affected by the climate emergency, in the terms of paragraphs 247 to 265.

    By four votes in favor and three against, that:
  7. The recognition of Nature and its components as subjects of rights constitutes a normative development that makes it possible to reinforce the protection of the integrity and functionality of ecosystems in the long term, providing effective legal tools in the face of the triple planetary crisis and facilitating the prevention of existential damage before it becomes irreversible. This conception represents a contemporary manifestation of the principle of interdependence between human rights and the environment, and reflects a growing trend at the international level aimed at strengthening the protection of ecological systems against present and future threats, in accordance with paragraphs 279 to 286.
    Judge Nancy Hernández López, Judge Humberto Sierra Porto and Judge Patricia Pérez Goldberg dissenting.

    By four votes in favor and three against, that:
  8. By virtue of the principle of effectiveness, the imperative prohibition of anthropogenic conducts that may irreversibly affect the interdependence and vital balance of the common ecosystem that makes the life of the species possible constitutes a norm of jus cogens, in accordance with paragraphs 287 to 294.
    Judge Nancy Hernández López, Judge Humberto Sierra Porto and Judge Patricia Pérez Goldberg dissenting.

    By a vote of five in favor and two partially against, that:
  9. The right to a healthy climate, understood as a component of the right to a healthy environment, protects in its collective dimension the present and future humanity, as well as Nature, in the terms of paragraphs 298 to 316.
    Judge Nancy Hernández López and Judge Patricia Pérez Goldberg dissenting in part.

    By six votes in favor and one partially against, that:
  10. By virtue of the right to a healthy climate, States must protect the global climate system and prevent human rights violations derived from its alteration. Therefore, they must mitigate GHG emissions, which implies (i) adopting regulations on the matter that define a mitigation goal and a mitigation strategy based on human rights, as well as regulating the behavior of companies, in the terms of paragraphs 323 to 351; (ii) adopting mitigation supervision and control measures, in the terms of paragraphs 352 to 357, and (iii) determining the climate impact of projects and activities when appropriate, in the terms of paragraphs 358 to 363.
    Judge Patricia Pérez Goldberg dissenting in part.

    Unanimously, that:
  11. By virtue of the right to a healthy environment, States must (i) protect nature and its components from the impacts of climate change, and (ii) establish a strategy to move towards sustainable development, in the terms of paragraphs 364 to 376.

    By six votes in favor and one partially against, that:
  12. By virtue of the rights to life, personal integrity, health, private and family life, property and housing, freedom of residence and movement, water and food, work and social security, culture and education, as well as all other substantive rights threatened by climate impacts, States have an enforceability obligation, States have an immediately enforceable obligation to define and update, as ambitiously as possible, their national adaptation goal and plan, in the terms of paragraphs 384 to 391, as well as the duty to act with enhanced due diligence in compliance with the specific duties set forth in paragraphs 400 to 457.
    Judge Patricia Pérez Goldberg dissenting in part.

    Unanimously, that:
  13. By virtue of the democratic principle, the States must strengthen the democratic rule of law as an essential framework for the protection of human rights, the effectiveness of public action, and open and inclusive citizen participation, also ensuring the full exercise of procedural rights, in the terms of paragraphs 460 to 469.

    By six votes in favor and one partially against, that:
  14. By virtue of the human right to science and the recognition of local, traditional and indigenous knowledge, protected by Articles 26 of the Convention and 14.2 of the Protocol of San Salvador, all persons have the right to access the benefits of measures based on the best available science and on the recognition of local, traditional or indigenous knowledge, in the terms of paragraphs 471 to 487.
    Judge Patricia Pérez Goldberg dissenting in part.

    Unanimously, that:
  15. Under the right of access to information, States have obligations regarding (i) production of climate information, in the terms of paragraphs 501 to 518; (ii) disclosure of information relevant to the protection of human rights in the face of climate change, in the terms of paragraphs 519 to 523, and (iii) to adopt measures against disinformation, in the terms of paragraphs 524 to 527.

    Unanimously, that:
  16. Under the right to political participation, States must guarantee processes that ensure the meaningful participation of people under their jurisdiction in decision-making and policies related to climate change, as well as ensure prior consultation of indigenous and tribal peoples, where appropriate, in the terms of paragraphs 530 to 539.

    By four votes in favor and three partially against, that:
  17. By virtue of the right of access to justice, the States must ensure central aspects regarding (i) provision of sufficient means for the administration of justice in this context, (ii) application of the pro actione principle; (iii) celerity and reasonable time in judicial proceedings; (iv) adequate provisions regarding standing, (v) evidence and (vi) reparation, as well as (vii) application of inter-American standards; in the terms of paragraphs 542 to 560.
    Judge Nancy Hernández López, Judge Humberto Sierra Porto and Judge Patricia Pérez Goldberg dissenting in part.

    Unanimously, that:
  18. By virtue of the right to defend human rights, States have a special duty to protect environmental defenders that translates into specific obligations, among others, to protect them, investigate and, if necessary, punish attacks, threats or intimidations they suffer, and to counteract the “criminalization” of the defense of the environment, in the terms of paragraphs 566 to 567, and 575 to 587.

    Unanimously, that:
  19. States should adopt measures aimed at addressing the way in which the climate emergency exacerbates inequality and has a differentiated impact on people living in multidimensional poverty, in the terms of paragraphs 626 and 627.

    By four votes in favor and three partially against, that:
  20. States have specific obligations in situations of special vulnerability such as those faced by (i) children, and (ii) indigenous peoples, tribes, Afro-descendants, and peasant and fishing communities, (iii) people who suffer differentiated impacts in the context of climate disasters, in the terms of paragraphs 599 to 602, and 604; 606 to 613, and 614 to 618. Likewise, States must adopt measures to protect persons who do not belong to the traditionally protected categories but who are in a situation of vulnerability for dynamic or contextual reasons, in the terms of paragraphs 628 and 629.
    Judge Nancy Hernández López, Judge Humberto Sierra Porto and Judge Patricia Pérez Goldberg partially dissent.

Full text of the advisory opinion:

The English translation of the full text of the advisory opinion is available below.

seriea_32_en (1)Download

Further information:

  • A summary of the advisory opinion (in Spanish) is available here.
  • A discussion of the advisory opinion by Patricia Tarre Moser and Juan Auz on Estudia Derechos Humanos (in Spanish) is available here.
  • The text of the advisory opinion request is available here (in the official Spanish version as filed with the Court) and it has also been translated to English, French and Portuguese by the Court’s Secretariat.
  • For a comment on the request by Juan Auz and Thalia Viveros-Uehara, see ‘Another Advisory Opinion on the Climate Emergency? The Added Value of the Inter-American Court of Human Rights’, EJIL:Talk! Blog, 2 March 2023, available here.
  • For a comment on the request from Maria Antonia Tigre, see ‘A Request for an Advisory Opinion at the Inter-American Court of Human Rights: Initial Reactions’, Climate Law Blog, 17 February 2023, available here.

Suggested citation:
Inter-American Court of Human Rights, Advisory Opinion on the Climate Emergency and Human Rights, OC 32/2025, 3 July 2025.

Last updated:
4 July 2025.