As temperatures soar, Paris court set to rule on landmark climate change case

As much of Western Europe grapples with record-shattering extreme heat that has upended daily life, a Paris court is preparing to deliver a groundbreaking ruling Thursday that could reshape corporate accountability for the climate crisis. The decision comes just 24 hours after France recorded its highest ever temperature, capping a weeks-long brutal heatwave that has forced red alert warnings across France, the United Kingdom and Spain, putting tens of millions of people at risk of heat-related illness.

The case before the court is the first of its kind globally, marking the first time France’s 2017 Corporate Duty of Vigilance Law will be applied to climate change. The legislation requires all large companies operating on French territory to map and prevent human rights abuses and environmental harm linked to their operations and supply chains. The lawsuit was first filed in 2020 by a coalition of four leading environmental and human rights NGOs — Notre Affaire à Tous, Sherpa, ZEA, and France Nature Environnement — joined by the city of Paris, against French energy giant TotalEnergies, one of the world’s largest fossil fuel companies and among the top historical contributors to global greenhouse gas emissions.

Plaintiffs are demanding the court order TotalEnergies to cut its global oil production by 37% and its gas production by 25% by 2030, matching the emission reduction benchmarks required to limit global warming to 1.5 degrees Celsius above pre-industrial levels, the core target of the Paris Agreement. They are also calling for an immediate ban on all new fossil fuel development projects planned by the company. If the court rules in favor of the claimants, it will set a historic precedent for holding major carbon emitters legally responsible for their role in driving climate change.

This pivotal legal moment comes as Europe confronts the accelerating human and economic cost of rising global temperatures. The European Union’s Copernicus Climate Change Service confirms Europe is warming twice as fast as the global average, a trend that has held steady since the 1980s. Just this month, the World Health Organization’s European regional office released data showing more than 200,000 preventable heat-related deaths across the continent over the past four years, a death toll that is projected to rise as extreme heat events grow more frequent and intense.

The current heatwave has already disrupted daily life across Western Europe: iconic Paris landmarks including the Eiffel Tower and the Louvre Museum have cut back visiting hours to protect staff and visitors, while school and public transportation schedules have been disrupted across multiple countries. Scientific consensus confirms that human-caused climate change is directly linked to the increasing frequency and severity of extreme heat events, and the United Nations’ climate agency projects the next five years will almost certainly bring more broken global temperature records.

Thursday’s ruling is the latest in a growing wave of court decisions that are expanding legal obligations around climate action. In 2019, the Netherlands Supreme Court delivered the first major legal victory for climate activists, ruling that protection from climate harm is a fundamental human right and governments have a legal duty to protect their citizens. In 2024, the European Court of Human Rights upheld this framework, ruling that nations are legally required to implement stronger protections against climate impacts. Most recently, the United Nations’ highest court, the International Court of Justice, ruled that countries can be found in violation of international law if they fail to take adequate action to protect the planet from climate change.