An international court in France on Tuesday ruled Switzerland’s failure to adequately tackle the climate crisis was in violation of human rights, in a landmark climate judgment that could have a ripple effect across the globe.

The European Court of Human Rights (ECHR) in Strasbourg, France delivered its ruling in a case brought by more than 2,000 Swiss women, the majority of whom are in their 70s, against Switzerland’s government. They argued that climate change-fueled heat waves undermined their health and quality of life, and put them at risk of dying.

The court ruled that the Swiss government had violated some of the women’s human rights due to “critical gaps” in its national legislation to reduce planet-heating emissions, as well as a failure to meet past climate targets.