The authoritative guide to ensuring science and technology make life on Earth better, not worse.
By Jerry Brown, William J. Perry, Mary Robinson, Ban Ki-moon | Doomsday Clock, Opinion
By Dawn Stover | Climate Change, Opinion
By Michael E. Mann | Climate Change, Opinion
By Robert J. Goldston | Nuclear Weapons, Opinion
By Neil C. Renic | Opinion, Technology and Security
By John Krzyzaniak, Nicholas R. Brown | Nuclear Energy, Opinion
By Kathy Mulvey, Myles Allen, Peter C. Frumhoff | Climate Change, Opinion
By Soheil Shayegh | Climate Change, Disruptive Technologies, Opinion
By Lilly Adams | Nuclear Weapons, Opinion
By Dawn Stover | Climate Change, Columnists, Opinion
By Lynn Klotz | Biosecurity, Opinion
By Alexander Campbell, Vickram Singh | Opinion
Watch the 2025 Doomsday Clock announcement on January 28