Almost every country in the world signed the 2015 Paris climate agreement, a monumental accord that aimed to limit global warming. But it was forged on a contradiction: Every signatory agreed that everyone must do something to address the urgent threat of climate change, but no one at the time pledged to do enough.

Click to learn more…https://www.vox.com/22714800/cop26-un-climate-change-conference-glasgow-explained