The planet is now more than 1.1°C warmer than before the Industrial Revolution – and it shows. This summer, we’ve experienced punishing heat waves, devastating floods, and toxic levels of wildfire smoke filling our skies.

As temperatures climb, the risk of extreme weather rises, too. And we’re facing an even hotter, more dangerous future. Humans are conducting an unprecedented experiment on the entire planet, and no one is sure exactly how bad it will turn out.