The Paris Agreement: How the World's Biggest Climate Promise Became Optional
In December 2015, nearly 200 countries stood up in a conference hall outside Paris and agreed, for the first time, to fight climate change together. It was hailed as the moment the world finally got serious. A decade on, global emissions are higher than the day it was signed, one American president has pulled the country out of it twice, and the UN's own scientists say the promises currently on the table still add up to a planet roughly three degrees warmer. Here is what the Paris Agreement actually promised, and why almost none of it happened the way it was supposed to.
Climate · 2026-08-10