The authoritative guide to ensuring science and technology make life on Earth better, not worse.

Paris Accord

Sign text: Exxon knew about climate change since 1981. Denied it anyway.

Exxon Mobil predicts global temperature increase over 2 degrees Celsius by 2050

By Lyric Aquino | Climate Change

artist's conception Miami sea rise

Contending with climate change: the next 25 years

By Robert Socolow | Climate Change, Nuclear Energy

Watch the 2025 Doomsday Clock announcement on January 28