France faces massive costs for climate adaptation plans

France is facing significant financial and logistical challenges in implementing its third national climate adaptation plan. Designed to prepare the country for a potential 4°C warming scenario by 2100, the plan has been updated and submitted to Prime Minister Sébastien Lecornu by Ecological Transition Minister Monique Barbut.

Estimates from the Institute for Climate Economics suggest that approximately 10 billion euros per year are required to maintain the necessary pace of adaptation. Specific sectors face heavy costs: healthcare facilities may require an additional 1 to 2.5 billion euros annually, while housing could need 3.2 billion euros per year. The economic impact of inaction is also noted, with heatwaves and droughts estimated to reduce French growth by 0.1 percentage points this year.

At the local level, Paris Mayor Emmanuel Grégoire has announced a 400 million euro adaptation plan for the city's school buildings. The initiative aims to accelerate thermal renovations to combat summer heatwaves. By 2027, the city intends to have cooled rooms in 100% of schools, nurseries, and middle schools, utilizing geothermal energy and urban cooling networks connected to the Seine.