The Paris Administrative Court has ruled in favour of the Affaire du Siècle: successive governments are now obliged to prove themselves and strictly respect France's climate commitments. The French state is also ordered to repair the environmental damage caused by its inaction before 31 December 2022. This unprecedented ruling obliges the current government, but also the future tenant of the Elysée Palace. This decision marks a new era for France's climate policies: no President will be able to avoid acting on climate issues or risk outlawing the State.

Supporters of the Affaire du Siècle came to the Trocadero square in Paris to display two messages in giant letters: "Climate: justice is with us!" and "Candidates: no climate, no mandate".