A landmark ruling in Europe’s top rights court delivers a watershed moment for climate litigation

Europe’s top human rights court on Tuesday ruled in favor of more than 2,000 elderly Swiss women who argued that their government’s efforts to tackle the climate crisis were insufficient to protect them from more frequent and intense heat waves.

The European Court of Human Right’s (ECHR) decision was hailed by campaigners as a ground-breaking moment that could serve as a blueprint for other climate litigation cases argued on human rights grounds.

The impact of the decision is expected to be felt far beyond Europe’s borders.

In an unappealable ruling, the ECHR found that the Swiss government had violated the human right to respect for private and family life and failed to comply with its duties under the convention regarding climate change.

The decision could compel the Swiss government to revise its climate policies, including upgrading its near-term emissions reductions targets to align with the landmark Paris Agreement.

“This is not just a win for these inspirational claimants but a huge victory for those everywhere seeking to use the power of the law to hold their government accountable for climate inaction,” Vesselina Newman, fundamental rights lead at environmental law firm ClientEarth, said in a statement.

“This result from one of the world’s highest courts sends a clear message: governments must take real action on emissions to safeguard the human rights of their citizens.”

Newman said that the court ruling was a European first for climate litigation. She added that judges across the continent would now have to apply the new principles to a growing number of climate cases, while signatory states have a clear legal duty to ensure their climate action is sufficient to protect human rights.

“Human-rights based climate cases are before courts in Brazil, Peru, Australia and South Korea, with these rulings potentially having an impact for those crucial proceedings as well,” Newman said.

“We will be combing through this landmark judgment over the coming days to assess the full legal ramifications of their victory,” she added.

The Swiss Justice Ministry did not immediately respond to a CNBC request for comment.

Swiss President Viola Amherd on Tuesday declined to comment in detail on the ruling, Reuters reported, saying she would first need to read the ECHR’s decision and said climate policy was a top priority.

The ECHR on Tuesday ruled that two other similar climate cases were inadmissible: one was brought by six Portuguese youths petitioning against more than 30 European governments and another was submitted by a former mayor of a French town.