It isn’t just the U.S. The whole world has soured on climate politics.

September 18, 2025

Ten years ago this fall, scientists and diplomats from 195 countries gathered in Le Bourget, just north of Paris, and hammered out a plan to save the world. They called it, blandly, the Paris Agreement, but it was obviously a climate-politics landmark: a nearly universal global pledge to stave off catastrophic temperature rise and secure a more livable future for all. Barack Obama, applauding the agreement as president, declared that Paris represented “the best chance we have to save the one planet we’ve got.”