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european court of human rights
'Highly Inspiring' Court Ruling Affirms Nations' Legal Duty to Combat Climate Emergency
"While the United States and some other major polluters have chosen to ignore climate science, the rest of the international community is advancing protections," said one observer.
Jul 04, 2025
In a landmark advisory opinion published Thursday, the Inter-American Court of Human Rights—of which the United States, the world's second-biggest carbon polluter, is not a member—affirmed the right to a stable climate and underscored nations' duty to act to protect it and address the worsening planetary emergency.
"States must refrain from any conduct that reverses, slows down, or truncates the outcome of measures necessary to protect human rights in the face of the impacts of climate change," a summary of the 234-page ruling states. "Any rollback of climate or environmental policies that affect human rights must be exceptional, duly justified based on objective criteria, and comply with standards of necessity and proportionality."
"The court also held that... states must take all necessary measures to reduce the risks arising, on the one hand, from the degradation of the global climate system and, on the other, from exposure and vulnerability to the effects of such degradation," the summary adds.
"States must refrain from any conduct that reverses, slows down, or truncates the outcome of measures necessary to protect human rights in the face of the impacts of climate change."
The case was brought before the Costa-Rica based IACtHR by Chile and Colombia, both of which "face the daily challenge of dealing with the consequences of the climate emergency, including the proliferation of droughts, floods, landslides, and fires, among others."
"These phenomena highlight the need to respond urgently and based on the principles of equity, justice, cooperation, and sustainability, with a human rights-based approach," the court asserted.
IACtHR President Judge Nancy Hernández López said following the ruling that "states must not only refrain from causing significant environmental damage but have the positive obligation to take measures to guarantee the protection, restoration, and regeneration of ecosystems."
"Causing massive and irreversible environmental harm...alters the conditions for a healthy life on Earth to such an extent that it creates consequences of existential proportions," she added. "Therefore, it demands universal and effective legal responses."
The advisory opinion builds on two landmark decisions last year. In April 2024, the European Court of Human Rights ruled that the Swiss government violated senior citizens' human rights by refusing to abide by scientists' warnings to rapidly phase out fossil fuel production.
The following month, the International Tribunal for the Law of the Sea found in an advisory opinion that greenhouse gas emissions are marine pollution under the United Nations Convention on the Law of the Sea and that signatories to the accord "have the specific obligation to adopt laws and regulations to prevent, reduce, and control" them.
The IACtHR advisory opinion is expected to boost climate and human rights lawsuits throughout the Americas, and to impact talks ahead of November's United Nations Climate Change Conference, or COP30, in Belém, Brazil.
Climate defenders around the world hailed Thursday's advisory opinion, with United Nations High Commissioner for Human Rights Volker Türk calling it "a landmark step forward for the region—and beyond."
"As the impact of climate change becomes ever more visible across the world, the court is clear: People have a right to a stable climate and a healthy environment," Türk added. "States have a bedrock obligation under international law not to take steps that cause irreversible climate and environmental damage, and they have a duty to act urgently to take the necessary measures to protect the lives and rights of everyone—both those alive now and the interests of future generations."
Amnesty International head of strategic litigation Mandi Mudarikwa said, "Today, the Inter-American Court affirmed and clarified the obligations of states to respect, ensure, prevent, and cooperate in order to realize human rights in the context of the climate crisis."
"Crucially, the court recognized the autonomous right to a healthy climate for both individuals and communities, linked to the right to a healthy environment," Mudarikwa added. "The court also underscored the obligation of states to protect cross-border climate-displaced persons, including through the issuance of humanitarian visas and protection from deportation."
Delta Merner, lead scientist at the Science Hub for Climate Litigation at the Union of Concerned Scientists, said in a statement that "this opinion sets an important precedent affirming that governments have a legal duty to regulate corporate conduct that drives climate harm."
"Though the United States is not a party to the treaty governing the Inter-American Court of Human Rights, this opinion should be a clarion call for transnational fossil fuel companies that have deceived the public for decades about the risks of their products," Merner added. "The era of accountability is here."
Markus Gehring, a fellow and director of studies in law at Hughes Hall at the University of Cambridge in England, called the advisory opinion "highly inspiring" and "seminal."
Drew Caputo, vice president of litigation for lands, wildlife, and oceans at Earthjustice, said that "the Inter-American Court's ruling makes clear that climate change is an overriding threat to human rights in the world."
"Governments must act to cut carbon emissions drastically," Caputo stressed. "While the United States and some other major polluters have chosen to ignore climate science, the rest of the international community is advancing protections for all from the realities of climate harm."
Climate litigation is increasing globally in the wake of the 2015 Paris climate agreement. In the Americas, Indigenous peoples, children, and green groups are among those who have been seeking climate justice via litigation.
However, in the United States, instead of acknowledging the climate emergency, President Donald Trump has declared an "energy emergency" while pursuing a "drill, baby, drill" policy of fossil fuel extraction and expansion.
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'A Betrayal': Women Elders Rip Swiss Lawmakers' Rejection of Landmark Climate Ruling
"The declaration is an attempt to continue to prevent human rights climate protection for political reasons, rather than recognizing that climate change is a scientific reality that affects everyone," said Greenpeace Switzerland.
Jun 13, 2024
Swiss women elders who recently won a landmark climate case said that they feel betrayed by their federal lawmakers, who voted Wednesday to disregard the court ruling.
The European Court of Human Rights (ECtHR) ruled in April that the Swiss government violated senior citizens' human rights by refusing to heed scientists' climate warnings and swiftly phase out fossil fuel production.
However, on Wednesday the National Council—Switzerland's lower legislative chamber—voted 111-72 to essentially ignore the court's decision, which some lawmakers condemned as judicial overreach. This followed a 31-11 vote by the Council of States, the upper legislative chamber, on a similar measure earlier this month.
"Climate and health are intrinsically linked; good health and a safe climate go hand in hand."
"We are appalled by this decision which feels like both a betrayal of older women but is also out of step with humankind's collective responsibility to tackle climate change for the benefits of vulnerable groups and the future of all humankind," said Pia Hollenstein, a retired nurse and member of KlimaSeniorinnen, the group of women ages 64 and older who sued their government for failing to take adequate action to stop the planet from heating 1.5°C, the more ambitious target of the Paris agreement.
"As a nurse, I have seen how climate and health are intrinsically linked; good health and a safe climate go hand in hand," she added.
Responding to Wednesday's vote, Greenpeace Switzerland said that "the declaration is an attempt to continue to prevent human rights climate protection for political reasons, rather than recognizing that climate change is a scientific reality that affects everyone."
Switzerland's Alpine climate is particularly vulnerable the effects of global heating, which is mainly caused by burning fossil fuels. Studies have shown that the country's glaciers—a key water source for millions of Europeans—could disappear by the end of the century if warming isn't curbed.
At least one lawmaker who voted to flout the ECtHR ruling attacked KlimaSeniorinnen members. Jean-Luc Addor of the right-wing Swiss People's Party dismissed the activists as "just a bunch of... 'boomeuses',"—or female Baby Boomers—"who are trying to deny our children the living conditions they have enjoyed all their lives."
However, Véronique Boillet, a member of the Swiss Human Rights Institute and a law professor at the University of Lausanne, said in a statement: "The binding nature of the rulings of the European Court of Human Rights is the heart of the European human rights system. It is the element that makes this system unique and a model worldwide."
"It is not for the Swiss Parliament to decide when a judgment has been implemented and when further measures are necessary," she continued. "It is normal that courts set certain objectives, as the ECtHR did for Swiss politics. It is also a sign of a functioning system of checks and balances."
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South Korean Court Hears First Asian Youth Climate Case
"Carbon emission reduction keeps getting pushed back as if it is homework that can be done later," said one plaintiff's mother. "But that burden will be what our children have to bear eventually."
Apr 23, 2024
One of South Korea's two highest courts on Tuesday began hearing Asia's first-ever youth-led climate lawsuit, which accuses the country's government of failing to protect citizens from the effects of the worsening, human-caused planetary emergency.
Nineteen members of the advocacy group Youth4ClimateAction filed a constitutional complaint in March 2020 accusing the South Korean government of violating their rights to life, the "pursuit of happiness," a "healthy and pleasant environment," and to "resist against human extinction."
The lawsuit also notes "the inequality between the adult generation who can enjoy the relatively pleasant environment and the youth generation who must face a potential disaster from climate change," as well as the government's obligation to prevent and protect citizens from environmental disasters.
"South Korea's current climate plans are not sufficient to keep the temperature increase within 1.5°C, thus violating the state's obligation to protect fundamental rights," the plaintiffs said in a statement.
South Korea's Constitutional Court began hearing a case that accuses the government of having failed to protect 200 people, including dozens of young environmental activists and children, by not tackling climate change https://t.co/XRIGE23KGM pic.twitter.com/snvqBaGGe9
— Reuters (@Reuters) April 23, 2024
Signatories to the 2015 Paris agreement committed to "holding the increase in global average temperature to well below 2°C above preindustrial levels and pursuing efforts to limit the temperature increase to 1.5°C."
According to the United Nations Environment Program's (UNEP) most recent Emissions Gap Report, the world must slash greenhouse gas emissions by 28% before 2030 to limit warming to 2°C above preindustrial levels and 42% to halt warming at 1.5°C. UNEP said that based on current policies and practices, the world is on track for 2.9°C of warming by the end of the century.
A summary of the lawsuit notes that South Korea is the fifth-largest greenhouse gas (GHG) emitter among Organization for Economic Cooperation and Development nations, and that the government is constitutionally obligated to protect Koreans from the climate emergency.
Instead, the plaintiffs argue, the Korean Parliament "gave the government total discretion to set the GHG reduction target without providing any specific guidelines." Furthermore, they contend that the government's downgraded reduction targets fall "far short of what is necessary to satisfy the temperature rise threshold acknowledged by the global community."
Lee Donghyun, the mother of one of the plaintiffs, told Reuters: "Carbon emission reduction keeps getting pushed back as if it is homework that can be done later. But that burden will be what our children have to bear eventually."
The South Korean case comes on the heels of a landmark ruling by the European Court of Human Rights (ECHR), which found that Switzerland's government violated senior citizens' human rights by refusing to heed scientists' warnings to swiftly phase out fossil fuel production.
The ECHR ruled on the same day that climate cases brought by a former French mayor and a group of Portuguese youth were inadmissible.
Courts in Australia, Brazil, and Peru also have human rights-based climate cases on their dockets.
In the United States, a state judge in Montana ruled last year in favor of 16 young residents who argued that fossil fuel extraction violated their constitutional right to "a clean and healthful environment."
Meanwhile, the Biden administration is trying to derail a historic youth-led climate lawsuit against the U.S. government.
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