Watch the 2021 Doomsday Clock announcement LIVE on January 27 at 10am EST

climate change facts

wide photo of US Capitol at sunset

Riots in the Capitol. Is this who we are?

By Adam Sobel | Climate Change, Columnists, Opinion

Carbon dioxide concentrations at Mauna Loa Observatory in Hawaii, by year. Source: Scripps Institution of Oceanography SIO

Facts and opinions about climate change

By Richard C. J. Somerville | Climate Change, Multimedia