Category: Public trust doctrine

Categories
Access to a remedy Children and young people Children's rights/best interests Emissions reductions/mitigation Fair trial Fossil fuel extraction Human dignity Imminent risk Inter-American Human Rights System Non-discrimination Private and family life Public trust doctrine Right to a healthy environment Right to culture Right to health Right to life Right to property United States of America

Our Children’s Trust with 15 Juliana Plaintiffs v. The United States of America

Summary:
On 23 September 2025, the NGO Our Children’s Trust announced that it had filed a petition before the Inter-American Commission on Human Rights alleging climate-related violations of human rights by the government of the United States of America on behalf of a group of youth. This petition follows the advisory opinion of the Inter-American Court of Human Rights on climate change, which was issued on 29 May 2025, as well as drawing on the climate advisory opinion of the International Court of Justice. The petitioners were formerly plaintiffs in the Juliana proceedings brought before US domestic courts on the basis of the public trust doctrine, among others.

Before the Inter-American Commission, the petitioners allege that the United States has known for decades that CO2 emissions cause climate change and that a transition away from fossil fuels is needed to protect human rights. They argue that, as the world’s largest emitter, the United States has played a leading role in causing climate change, and that its greenhouse gas emissions — and the resulting climate change — violate the human rights of children and youth, who are disproportionately impacted by its effects.

They claim before the Commission that the United States has failed to comply with its international obligations to guarantee the petitioners’ human rights, that it has a duty to prevent harm to the global climate system to guarantee those rights, that it brached its obligation to act with due diligence ot guarantee their rights and prevent harm to the climate system, that if violated its obligation to mitigate greenhouse gas emissions,a form of pollution, and that the United States’s deliberate emissions of greenhouse gasses violate the substantive rights of the petitioners as per the American Declaration, including the rights to life and health, the particular protections for children, equality and non-discrimination, the rights to home, property and private and family life, the right to culture, the right to dignity, and the right to a healthy climate.

They also invoke their procedural rights, namely the rights to access to justice and an effective remedy, alleging that the United States Department of Justice has deployed “extraordinary tactics” to silence the petitioners, and that the domestic courts failed to consider the merits of their claims.

In their request for relief, the petitioners inter alia request the Commission to:

  • order precautionary measures to prevent further irreparable harm;
  • join the admissibility and merits of the petition, in accordance with Article 37(4) of the Commission’s Rules of Procedure, given the serious and urgent nature of the case and the ongoing violations of Petitioners’ fundamental rights;
  • conduct an on-site country visit, including a visit with the Petitioners, and hold fact-finding hearings;
  • establish violations of Articles I (life), II (equality), V (private and family life), VI (family), VII (special protections for children), IX (inviolability of the home), XI (health), XIII (cultural life), XVIII (access to justice and effective remedies), XXIII (property), and XXIV (prompt and effective remedy) of the American Declaration and the rights to dignity (Preamble) and to a healthy climate; and
  • issue a country report with recommendations to the United States to remedy confirmed violations of international law, taking into account the clarifications of existing law set forth by the IACtHR and the ICJ in their in Advisory Opinions on the Climate Emergency and Human Rights and the Obligations of States in Respect of Climate Change.

Full text of the petition:

The full text of the petition can be found below.

_2025.09.23+Juliana-IACHR+PetitionDownload

Suggested citation:

Inter-American Commission on Human Rights, Our Children’s Trust with 15 Juliana Plaintiffs v. The United States of America, petition filed on 23 September 2025.

Categories
Children and young people Children's rights/best interests Domestic court Emissions reductions/mitigation Fossil fuel extraction Private and family life Public trust doctrine Right to culture Right to health Right to life Sea-level rise United States of America Vulnerability

Sagoonick et al. v. State of Alaska II

Summary:
On 22 May 2024, a group of young people supported by the NGO ‘Our Children’s Trust’ filed suit against the U.S. State of Alaska arguing that statutory requirements to develop and advance the Alaska Liquefied Natural Gas (LNG) Project violate their public trust rights as well as their rights to substantive due process, life, liberty and property, and the right to protected natural resources for “current and future generations” under the Alaskan Constitution. They argue that this project will cause “existential harms to the lives, health, safety, and cultural traditions and identities of Alaska’s youth, and substantially limit their access to the vital natural resources upon which they depend.”

The case follows on an earlier case against Alaska, Sagoonick et al. v. Alaska I, which was rejected in 2022 by a divided Alaskan Supreme Court.

Claims made:
The case challenges legislation creating the Alaska Gasline Development Corporation, a state agency created to pursue building a new LNG pipeline. 

According to the plaintiffs, Alaska is “already in a state of climate disruption” and the contested project “would ensure continuing and substantially elevated levels of climate pollution for decades, locking in increasing and worsening harms to Youth Plaintiffs”. They argue that the youth plaintiffs are “uniquely vulnerable to climate change injuries and face disproportionate harms”. Arguing that climate pollution is already causing dangerous climate disruption in Alaska, injuring the plaintiffs in this case, they cite the following climate-related impacts:

  • temperature increase, heatwaves, and other heat-related changes;
  • thawing permafrost;
  • changing precipitation patterns, extreme weather events and droughts;
  • loss of sea, river, and lake ice;
  • ocean acidification;
  • melting glaciers and sea level rise; and
  • increasingly frequent and severe wildfires and smoke.

The plaintiffs sought a declaration that the contested provisions of State law violate their public trust rights to equal access to public trust resources and to sustained yield of public trust resources free from substantial impairment. They argued that the state of Alaska has a duty under the public trust doctrine to ensure “the continuing availability of public trust resources for present and future generations”.

In addition, they sought a declaration that they have a fundamental right to a climate system that sustains human life, liberty, and dignity under the Alaskan Constitution, which is being violated by the contested statutory provisions.

The youth plaintiffs also petitioned the court to enjoin the defendants from taking further actions to advance or develop the Alaska LNG Project. They sought costs and expenses as well as “such other and further relief as the Court deems just and equitable.”

Recent developments:
In October 2024, it was reported that the state of Alaska had asked the Court to dismiss the case.

2024.05.22.AK+LNG+ComplaintDownload

Last updated:
14 November 2024

Categories
2022 Children and young people Domestic court Emissions reductions/mitigation Imminent risk Indigenous peoples' rights Public trust doctrine Uncategorized United States of America

Sagoonick et al. v. State of Alaska I

Summary:
In 2017, sixteen children and young people — including some who were members of Alaskan Indigenous peoples — filed suit against the U.S. State of Alaska arguing by the state’s climate and energy policy violated their constitutional rights. Because the policy in question authorized and facilitated activities producing greenhouse gas emissions, the plaintiffs alleged violations of their due process rights to life, liberty, and property under the Alaskan Constitution, as well as their right to a stable climate system. The argued that the state government and relevant agencies had, “knowingly and with deliberate indifference”, created a dangerous situation for them, in violation of their constitutional rights. The plaintiffs also made an equal protection claim and alleged a violation of Alaska’s public trust doctrine.

The plaintiffs sought declaratory relief. They sought a declaration that the state had a constitutional duty to protect their constitutional rights, as well as a duty under the public trust doctrine to protect Alaska’s waters, atmosphere, land, fish, wildlife, and other public trust resources. They sought a declaration that the state’s climate and energy policy had violated their rights and placed them “in a position of danger with deliberate indifference to their safety” and had “materially caused, contributed to, and/or exacerbated climate change and discriminated against Youth Plaintiffs as members of a protected class, and with respect to their fundamental rights”. They sought an order for the state to prepare a complete and accurate accounting of Alaska’s GHG emissions and an enforceable state climate recovery plan.

Alaska Superior Court Judgment:
On 30 October 2018, the Alaska Superior Court rejected the case, arguing that it was indistinguishable from previous climate cases based on the public trust doctrine and that it concerned political questions which were not justiciable. The plaintiffs appealed.

Alaska Supreme Court Judgment:
In 2022, on appeal, the Alaska Supreme Court affirmed the dismissal of the case (see full text of the judgment below). The Court found that the applicants’ claims concerned non-justiciable political questions and found that it could not make “the legislative policy judgments necessary to grant the requested injunctive relief.”

Judge Maassen, dissenting, argued that he was “no longer convinced that nothing can be gained by clarifying Alaskans’ constitutional rights and the State’s corresponding duties in the context of climate change”, and that the public trust doctrine under the Alaskan Constitution provided a right to a livable climate.

Additional developments:
A follow-up case, Sagoonick et al. v. State of Alaska II, was filed in 2022.

Sagoonick IDownload

Suggested citation:
Supreme Court of Alaska, Sagoonick et al. v. State of Alaska I, 28 January 2022, No. 3AN-17-09910 CI.

Last updated:
14 November 2024

Categories
2019 Climate activists and human rights defenders Deforestation Domestic court Human dignity Pakistan Public trust doctrine Right to freedom of expression Right to life Rights at stake Rights of nature

Sheikh Asim Farooq v. Federation of Pakistan etc.

Summary:

In Pakistan, civil society members have taken legal action against multiple government departments, including the Planning and Development Department, Punjab Environmental Protection Department, and Housing & Urban Development Department. They assert that these departments have neglected their responsibilities regarding the planting, protection, management, and conservation of trees and forests in Punjab. According to the petitioners, this neglect not only violates legal obligations but also infringes upon their constitutional rights, including the rights to life, liberty, dignity, and access to public places of entertainment. This case highlights the government’s failure to address these critical environmental issues.

Claim:

The central argument in this case is that the Pakistani government must be compelled to enforce environmental laws and policies, such as the Forest Act, the Trees Act, and various forestry and climate change policies. The petitioners argue that this action is essential to protect their fundamental rights, as guaranteed by the Constitution. They specifically cite Article 9 (right to life and liberty), Article 14 (right to dignity), Article 26 (right to access public places of entertainment), and Article 38(b) (provision of available leisure places). The petitioners assert that the government’s failure to safeguard natural resources and forests, in light of their drastic depletion and the doctrine of public trust, clearly violates their constitutional rights and warrants judicial intervention.

Decision:

Following the lawsuit, the Lahore High Court granted a writ of mandamus in favour of the petitioners. In its ruling, the court emphasised that international environmental principles, such as sustainable development, the precautionary principle, the public trust doctrine, inter-and intra-generational equity, water justice, food justice, in dubio pro natura, and the polluter pays principle, are integral to Pakistani jurisprudence.

The court stressed the government’s duty to effectively manage and protect forests and urban tree planting, citing specific laws to support its stance. The government was directed to actively adhere to environmental policies, particularly those related to climate change. The court also underscored the importance of environmental rights and the government’s responsibility to combat the impacts of climate change on forests and biodiversity. The court’s order included several instructions, such as enforcing policies, amending legal requirements, and mandating regular reporting on forest growth. It also addressed penalties for non-compliance and encouraged housing societies to support tree planting in green areas, with consequences for the unjustified removal of trees.

Links:

The case documents are accessible via Climate Case Chart: Click here.

Status of the case:

Judgment

Suggested citation:

Sheikh Asim Farooq v. Federation of Pakistan, Writ Petition No. 192069 of 2018, Lahore High Court, Judgment of 30 August 2019.

Last updated:

20 October 2023.

Categories
2023 Children and young people Domestic court Emissions reductions/mitigation Evidence Fossil fuel extraction Human dignity Indigenous peoples' rights Public trust doctrine Right to a healthy environment Right to health Standing/admissibility United States of America

Held and Others v. Montana

Summary:
In Held and Others, sixteen young plaintiffs aged between two and eighteen brought a case against the U.S. state of Montana alleging violations of the state constitution due to climate change. The youth plaintiffs in this case, which is to some extent comparable to the Juliana litigation, alleged that they are already experiencing ‘a host of adverse consequences’ from anthropogenic climate change in Montana, including increased temperatures, changing weather patterns, more acute droughts and extreme weather events, increasing wildfires and glacial melt. Fossil fuels extracted in Montana cause emissions higher than those of many countries, including Brazil, Japan, Mexico, Spain, or the United Kingdom. The plaintiffs argued that this was causing health risks, especially for children, and that the defendants, among them the state of Montana, its Governor, and various state agencies, had “act[ed] affirmatively to exacerbate the climate crisis” despite their awareness of the risks to the applicants. On 14 August 2023, Judge Kathy Seeley ruled wholly in favor of the youth plaintiffs, declaring that Montana had violated their constitutional rights and invalidating the statutory rule forbidding state authorities from considering the impacts of GHG emissions or climate change in decision-making related to fossil fuel extraction. In 2025, 13 of the 16 original plaintiffs filed non-compliance proceedings based on new state legislation.

Claims made:
The plaintiffs challenged the constitutionality of fossil fuel-based provisions of Montana’s State Energy Policy Act along with a provision of the Montana Environmental Policy Act which forbids state authorities from considering the impacts of GHG emissions or climate change in their environmental reviews (the “MEPA Limitation”). They also challenged the aggregate acts that the state has taken to implement and perpetuate a fossil fuel-based energy system under these statutes.

The plaintiffs sought a declaration that their right to a clean and healthy environment includes a right a stable climate, and that existing approaches to greenhouse gas emissions in Montana violate constitutional provisions, including the right to a clean and healthy environment; the right to seek safety, health, and happiness; and the right to individual dignity and to equal protection. They also sought injunctive relief, namely an order to account for Montana’s greenhouse gas emissions and to develop and implement an emissions reductions plan.

Decision on the admissibility:
On 4 August 2021, a the Montana First Judicial District Court for Lewis and Clark County declared the case admissible in part. The prayer for injunctive relief in terms of emissions accounting, a remedial plan or policy, the appointment of expert to assist the court, and retain jurisdiction until such orders are complied with were rejected. However, the court declared the constitutional rights claims admissible, including the claim about the plaintiffs’ ‘fundamental constitutional right to a clean and healthful environment’, which — as the plaintiffs submitted — ‘includes a stable climate system that sustains human lives and liberties’.

Judge Seeley’s Ruling of 14 August 2023:
After a trial held from 12-23 June 2023, Judge Kathy Seeley of the First Judicial District Court of Montana issued a ruling in this case on 14 August 2023. Noting that “[t]he science is clear that there are catastrophic harms to the natural environment of Montana and Plaintiffs and future generations of the State due to anthropogenic climate change”, she ruled wholly in favor of the plaintiffs, declaring that the state of Montana had violated their constitutional rights to equal protection, dignity, liberty, health and safety, and public trust, all of which are predicated on their right to a clean and healthful environment (p. 92-93).

In doing so, Judge Seeley ruled that the youth plaintiffs had standing to bring the case because they had proven that they had experienced significant injuries. The court set out the different impacts on the plaintiffs at length (p. 46-64). It ultimately found that the plaintiffs “have experienced past and ongoing injuries resulting from the State’s failure to consider GHGs and climate change, including injuries to their physical and mental health, homes and property, recreational, spiritual, and aesthetic interests, tribal and cultural traditions, economic security, and happiness” (p. 86 of the ruling). The judge also ruled that while mental health injuries based on state inaction on climate change do not on their own constitute a cognizable injury, “mental health injuries stemming from the effects of climate change on Montana’s environment, feelings like loss, despair, and anxiety, are cognizable injuries” (p. 86-87). The ruling recognizes that “[e]very additional ton of GHG emissions exacerbates Plaintiffs’ injuries and risks locking in irreversible climate injuries”, and that these injuries “will grow increasingly severe and irreversible without science-based actions to address climate change” (p. 87). As children and youth, the plaintiffs are disproportionately impacted by fossil fuel pollution and climate impacts, and their injuries are “concrete, particularized, and distinguishable from the public generally” (p. 87).

On causation, and having heard and evaluated testimony from several expert witnesses, the Court extensively reviewed the scientific evidence concerning the causation and progression of anthropogenic climate change and identified the Earth’s energy imbalance as the critical metric for determining levels of global warming (p. 22). Having established that “Montana is a major emitter of GHG emissions in the world in absolute terms, in per person terms, and historically”, and noting the state government’s continuing approval of fossil fuel projects despite its already extensive production of oil, gas and coal, the Court found that there was a “fairly traceable connection” between Montana’s statutes, its GHG emissions, climate change, and the injuries suffered by the plaintiffs (p. 87). Noting that the state government had the authority to limit fossil fuel-related activities, and having regard to the fact that the MEPA Limitation causes the state to ignore climate impacts and renewable energy alternatives to fossil fuels, as well as noting the economic and environmental advantages of a green energy transition for Montana, the Court noted that “current barriers to implementing renewable energy systems are not technical or economic, but social and political” (p. 83). The state of Montana, it held, “authorizes fossil fuel activities without analyzing GHGs or climate impacts, which result in GHG emissions in Montana and abroad that have caused and continue to exacerbate anthropogenic climate change” (p. 88). It noted also that these emissions were “nationally and globally significant”, and could accordingly not be considered de minimis; they “can be measured incrementally and cumulatively both in terms of immediate local effects and by mixing in the atmosphere and contributing to global climate change and an already destabilized climate system” (p. 88).

On the redressability of these impacts, the Court noted that the psychological satisfaction of the ruling itself did not constitute sufficient redress, and that declaring the relevant state statutory rules unconstitutional would provide partial redress because ongoing emissions will continue to cause harms to the plaintiffs. Noting that “[i]t is possible to affect future degradation to Montana’s environment and natural resources and injuries to these Plaintiffs”, and applying strict structiny to the state’s statutes, the Court found that the MEPA Limitation violates the right to a clean and healthful environment under the Montana Constitution, which protects children and future generations (among others) and includes the protection of the climate system. As a result, the Court tested whether the MEPA Limitation was narrowly tailored to serve a compelling government interest, finding that neither had the state authorities shown that it served a compelling governmental interest, nor was it narrowly tailored to serve any interest.

As a result, the judge invalidated the Montana legislation that promoted fossil fuels and prohibited analysis of GHG emissions and corresponding climate impacts.

Proceedings on non-compliance:
On 10 December 2025, a petition on behalf of 13 of the original 16 plaintiffs in the case filed a petition for original jurisdiction with the Montana Supreme Court. They challenged statutes passed by the Montana legislature in 2025, arguing that they weaken the state’s environmental protection laws and undermine the state’s constitutional obligation to protect the environment. The petition seeks a declaration that these statutes are unconstitutional, and to overturn them.

The petition in these follow-up proceedings is available below:

Petition+for+Original+JurisdictionDownload

Date filed:
13 March 2020

Date of admissibility decision:
4 August 2021

Date of Ruling:
14 August 2023

More information:
The original complaint is available from the Western Environmental Law Center.

The admissibility decision is available on climatecasechart.com.

Judge Seeley’s findings of fact, conclusions of law and order of 14 August 2023 are available below.

Held-v-MontanaDownload

Suggested citations:
Montana First District Court for Lewis and Clark county, Held and others v. State of Montana and others, Findings of Fact, Conclusions of Law, and Order, 14 August 2023, Cause no. CDV-2020-307.

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
2023 Canada Children and young people Domestic court Emissions reductions/mitigation Non-discrimination Paris Agreement Public trust doctrine Right to life Standing/admissibility Vulnerability

Mathur et al. v. HM the Queen in Right of Ontario

Summary:
On 25 November 2019, seven Canadian young people and the NGO Ecojustice brought a case against the State of Ontario, arguing that it had failed to take adequate action to mitigate its greenhouse gas emissions and contesting the State’s “dangerously inadequate GHG reduction target” as set out under the Cap and Trade Cancellation Act of 2018. Under this legislation, Ontario aims to reduce GHG emissions to 30% below 2005 levels by 2030. To contest the adequacy of this target, and the previous repeal of the more ambitious Climate Change Act (with its target of 45% reductions by 2030), the applicants invoked sections 7 and 15 of the Canadian Charter of Rights and Freedom (the right to life, liberty and security of the person and the right to equal protection under the law). Arguing that they have a serious and genuine interest in this case, which also impacts all Ontario youth and future generations, they noted that climate change will cause heat-related fatalities, harms to human health, increased fire activity and the spread of disease, increased flooding and other extreme weather events, harmful algal blooms and exposure to contaminants, harms to Indigenous peoples, and psychological harms and mental distress.

Claims made:
Noting the principle of common but differentiated responsibilities and the leading role of developed countries under the Paris Agreement, the applicants argued that Ontario’s current emissions reductions target compromises their right to life, liberty and security of the person “in a serious and pervasive manner that does not accord with the principles of fundamental justice”. They furthermore submitted that the target violated the right to liberty of Ontario’s youth and future generations, because it impacted their ability to make choices about their futures. They invoked the principle of “societal preservation” and human dignity, and argued for the recognition of a right to a stable climate system. Concerning the right to equal protection under the law, they argued that youth and future generations are in a uniquely vulnerable situation given their age and exclusion from political participation and the fact that they will be disproportionately impacted by climate change.

Relief sought:
Among other things, the applicants sought the invalidation of the existing emissions reductions targets and the rules for setting such targets, a declaration that it violates unwritten constitutional principles about avoiding harm, a recognition of the right to a stable climate system, and an order that Ontario must set out a science based GHG reduction target consistent with its share of global emissions.

Decision on admissibility:
On 12 November 2020, the Superior Court of Justice for Ontario rejected a motion from the government to dismiss the case. The government had invoked the absence of a right to a stable climate from the Charter, the plaintiffs’ alleged lack standing to represent future generations, and the absence of sufficient evidence or a reasonable cause of action.

Hearing:
A hearing in this case was heard from 12-14 September 2022.

2023 Judgment:
On 14 April 2023, the Superior Court of Justice of Ontario delivered its judgment in the case. The Court found that, although the policies in question were justiciable given that the applicants had challenged specific state acts and legislation, the applicants had not established a violation of their rights under the Canadian Charter of Rights and Freedoms.

In her judgment, Justice Vermette noted that the issue of establishing Ontario’s “fair share” of the remaining carbon budget was not a justiciable issue, and “should be determined in another forum” (para. 109). Justice Vermette did consider it “indisputable that, as a result of climate change, the Applicants and Ontarians in general are experiencing an increased risk of death and an increased risk to the security of the person” (para. 120). However, she disagreed with the applicants’ characterization of the emissions reductions target as “authorizing, incentivizing, facilitating and creating the very level of dangerous GHG that will lead to the catastrophic consequences of climate change for Ontarians”, finding that “the target does not authorize or incentivize GHG” (para. 122).

While the target was not legally meaningless, and justiciable under the Charter, Justice Vermette found (contrary to the arguments of the applicants) that the question at issue was whether the Charter imposed positive obligations. Leaving this question open, albeit acknowledging that “the Applicants make a compelling case that climate change and the existential threat that it poses to human life and security of the person present special circumstances that could justify the imposition of positive obligations under section 7 of the Charter”, Justice Vermette found that any putative deprivation of Charter rights at stake was not contrary to “the principles of fundamental justice”, i.e. neither arbitrary nor grossly disproportionate. This test applies because the relevant right in the Charter, i.e. its Article 7, stipulates that “[e]veryone has the right to life, liberty and security of the person and the right not to be deprived thereof except in accordance with the principles of fundamental justice.”

Concerning the equality claim under Article 15 of the Charter, Justice Vermette found that Ontario’s climate policy did not distinguish based on age, but made a temporal distinction, and that accordingly there was no violation of that provision either.

Proceedings on Appeal:
An appeal by the applicants was heard by the Ontario Court of Appeal — the highest court in the state of Ontario — in January 2024. On 17 October 2024, this court unanimously ruled that the case should be referred back to the previous instance, the Superior Court of Justice for Ontario, for a new hearing, finding that the case raised important issues and that the lower court judge’s analysis was flawed on key points. The Court of Appeal ordered a new hearing in the case before the Superior Court of Justice.

The Ontario Court of Appeal unanimously found that the previous instance had erred in framing this case as seeking to impose new positive obligations on the State of Ontario (para. 5). Instead, it found that through state law, specifically the Cap and Trade Cancellation Act of 2018, the government of Ontario had “voluntarily assumed a positive statutory obligation to combat climate change”. The ruling also invited the applicants to broaden the scope of their case by incorporating arguments made by amicus curiae and to adduce further evidence.

In doing so, the Court found that:

[6]          The interveners raised relevant, important issues that were not determined by the application judge, either because they were not raised before her or did not affect her analysis, or because she declined to address them since they were not pleaded in the notice of application. They included whether the Target breached the Charter rights of Indigenous peoples in Ontario and their s. 35 rights under the Constitution Act, 1982; the integration of the public trust doctrine; the application of international law, including international environmental law, in the interpretation of Charter rights; the application of the best interests of the child principle; and the recognition and impact of certain unwritten constitutional principles, including societal preservation and ecological sustainability.

Further reading:

  • The original application is available in full from Climate Case Chart, as is the admissibility order.
  • The 2023 judgment in the case is available here.
  • A comment on the judgment in this case, as well as its context, is available from Christie A. MacLeod, Annafaye Dunbar, and Rosemarie Sarrazin (Miller Thomson) here.
  • The 2024 ruling of the Ontario Court of Appeal can be found here.

Suggested citation:
Superior Court of Justice for Ontario, Mathur v. Ontario, 2023 ONSC 2316, 14 April 2023.

Ontario Court of Appeal, Mathur v. Ontario, 2024 ONCA 762, 17 October 2024.

Last updated:
13 November 2024.

Categories
Children and young people Climate-induced displacement Domestic court Emissions reductions/mitigation Pakistan Public trust doctrine Right to a healthy environment

Ali v. Pakistan

Summary:
This 2016 petition was brought against Pakistan in the name of a seven-year-old girl from Karachi, and challenges actions and inactions on the part of the federal and provincial government relating to climate change. The case is still pending.

Facts and claims made:
The petition, which is available on Climate Case Chart, was filed directly with the Supreme Court of Pakistan in Islamabad, and it alleges violations of constitutional rights, of the public trust doctrine, and of environmental rights. It challenges the environmental harms that are expected to result from the policy of burning coal to obtain electricity. The application challenges a plan to develop coal fields, which would massively increase Pakistani coal production and would displace local residents and degrade the local environment. The plan is linked to investments stemming from the China-Pakistan Economic Corridor, which supports coal field development and new coal-fired power plants in Pakistan.

Suggested case citation:
The Supreme Court of Pakistan, Ali v. Pakistan, petition filed on 1 April 2016

Categories
2020 Canada Domestic court Emissions reductions/mitigation Fossil fuel extraction Non-discrimination Public trust doctrine Right to life Standing/admissibility

Cecilia La Rose v Her Majesty the Queen

Facts of the case:

Plaintiffs comprising of 15 children and youths from various parts of Canada sued the Government and Attorney General of Canada alleging violations of the right to life and right to equality under Sections 7 and 15 of the Canadian Charter of Rights and Freedoms, and the constitutional and common law duty to protect the integrity of common natural resources in public trust. According to the plaintiffs, the impugned conduct of the respondents consisted in: continuing to cause, contribute to and allow a level of greenhouse gas (GHG) emissions incompatible with a Stable Climate System (defined as a climate capable of sustaining human life and liberties); adopting GHG emission targets that are inconsistent with the best available science about what is necessary to avoid dangerous climate change and restore a Stable Climate System; failing to meet the Defendants’ own GHG emission targets; and actively participating in and supporting the development, expansion and operation of industries and activities involving fossil fuels that emit a level of GHGs incompatible with a Stable Climate System.

The defendants, while accepting the plaintiffs’ concerns about the seriousness of climate change and its potential impacts, filed a motion to strike their claim alleging that their claim is not justiciable.

Date of decision:

27 October 2020

Admissibility:

On 27 October 2020 the Federal Court in Ottawa granted the defendants’ motion. The Court answered the question of justiciability of the claims of Charter violations for the reason that the impugned conduct is of undue breadth and diffuse nature, and that the remedies sought by the plaintiffs were inappropriate. The Court also found that it had no constitutional obligation to intervene on the matter as there is room for disagreement between reasonable people on how climate change should be addressed. On the issue of justiciability of the public trust doctrine invoked by the plaintiffs, the Court found that the question of existence of the doctrine is a legal question which courts can resolve. However, the Court found that the plaintiffs’ claim did not disclose a reasonable prospect of success for the purposes of its admissibility.

Merits:

NA

Status of the case:

The plaintiffs have appealed against the Federal Court’s order before the Federal Court of Appeal.

Suggested case citation:

Federal Court of Ottawa, Cecilia La Rose v Her Majesty the Queen, T-1750-19, judgment of 27 October 2020, 2020 FC 1008

Case documents:

For the complaint filed by the plaintiffs on 25 October 2019, click here.

For the Government’s statement of defence notified on 7 February 2020, click here.

For the plaintiff’s reply to the Government’s motion to strike, filed on 31 August 2020, click here.

For the Federal Court of Ottawa’s order dated 27 October 2020, click here.

For the Memorandum of Appeal filed by the plaintiffs on 5 March 2021, click here.

Further reading:

Camille Cameron, Riley Weyman, ‘Recent Youth-Led and Rights-Based Climate Change Litigation in Canada: Reconciling Justiciability, Charter Claims and Procedural Choices,’ 34(1) Journal of Environmental Law (2021), Pages 195–207. Available here.

Categories
2020 Children and young people Domestic court Emissions reductions/mitigation Indigenous peoples' rights Public trust doctrine Standing/admissibility United States of America

Juliana et al. v. USA et al.

Summary:
On 12 August 2015, the Juliana v. the United States case was filed in the U.S. District Court for the District of Oregon. The 21 youth plaintiffs in this case, who were represented by the NGO “Our Children’s Trust”, asserted that the government had violated the youngest generation’s constitutional rights to life, liberty and property through its climate change-causing actions. Among other things, they argued that they had suffered psychological harms, damage to property, impairment to their recreational interests, and that their medical conditions had been exacerbated by the effects of climate change. They sought declaratory relief and an injunction ordering the government to implement a plan to phase out fossil fuels. Moreover, they stated that the government had failed to protect essential public trust resources by encouraging and permitting the combustion of fossil fuels. After extensive proceedings, the Ninth Circuit Court of Appeals ordered the dismissal of the case in 2024, and the US Supreme Court refused to grant certoriari in March 2025, effectively ending the case.

The Ninth Circuit’s 2020 decision:
The Government filed a large number of motions to stay or deny these procedings. However, U.S. District Court of Oregon Judge Ann Aiken declined to dismiss the lawsuit. She ruled that access to a clean environment constitutes a fundamental right. Judge Aiken’s judgment was reversed by a Ninth Circuit Panel on 17 January 2020 due to the plaintiffs’ lack of standing to sue. The Ninth Circuit Court of Appeals recognized the gravity of the evidence on the plaintiffs’s injuries from climate change. The panel of judges also recognized the existence of harms to the applicants, and the plausibility of arguing that these harms had been caused by climate change. Nevertheless, the Court held that the plaintiffs’ requested remedies should be addressed by the executive and legislative branches and not by the courts. As a result, they “[r]eluctantly” held that “such relief is beyond [their] constitutional power.”

One of the three judges affirmed the plaintiff’s constitutional climate rights in a dissent, arguing that the case sought to enforce the US Constitution’s most basic principle: “that the Constitution does not condone the Nation’s willful destruction.” Accordingly, she held that the plaintiffs had standing to challenge the government’s conduct, and had presented sufficient evidence to press their constitutional rights claims at trial.

Further proceedings:
On 9 March 2021, the plaintiffs filed a motion to amend their complaint and adjust the remedy sought in the case. After settlement talks ended without resolution in November 2021, and Judge Aiken granted the plaintiff’s motion for leave to file a second amended complaint in June 2023. The plaintiffs argued that the government’s failure to address climate change violated their rights under the Fifth and Ninth Amendments and the Public Trust Doctrine. The amended complaint requested the court to issue an injunction restraining the defendants from carrying out policies, practices that render the national energy system unconstitutional in a manner that harms the plaintiffs.

In December 2023, the court partially denied the defendants’ motion to dismiss the second amended complaint, allowing claims related to the right to a climate system capable of sustaining life under the Due Process Clause and the Public Trust Doctrine to proceed. However, in February 2024, the government filed an emergency petition for a writ of mandamus, which was granted by a three-judge panel of the Ninth Circuit Court of Appeals in May 2024. This order required the district court to dismiss the case and preclude any further amendments. Subsequently, the district court dismissed the case.

These were complex proceedings, with several intermediate filings and actions. However, on 24 March 2025, the US Supreme Court denied the plaintiffs’ petition for a writ of certoriari. The plaintiffs had sought review of the order of the Ninth Circuit of May 2024, which granted the government’s request for a writ of mandamus and ordered the district court to dismiss the case. At the time of writing, this seems to have effectively ended the case.

Further reading:
The full text of the Ninth Circuit’s order on interlocutory appeal is available here.

Documents on the proceedings before the Supreme Court can be found here.

For scholarly comment on this case, see among others:

  • Melissa Powers, ‘Juliana v United States: The next frontier in US climate mitigation?’ 27 RECIEL 199 (2018).
  • William Montgomery, ‘Juliana v. United States: The Ninth Circuit’s Opening Salvo for a New Era of Climate Litigation’, 34 Tul. Env’t L.J. 341 (2021).
  • Nathanial Levy, ‘Juliana and the Political Generativity of Climate Litigation’, 43 Harv. Envtl. L. Rev. 479 (2019).
  • Chloe N. Kempf, ‘Why Did So Many Do So Little? Movement Building and Climate Change Litigation in the Time of Juliana v. United States‘, 99 Tex. L. Rev. 1005 (2020-2021).

Suggested citation:
Juliana and Others v. the United States and Others, 947 F.3d 1159 (9th Cir. 2020).

Last updated:
15 June 2025.