The authoritative guide to ensuring science and technology make life on Earth better, not worse.
By Peter Gleick | Climate Change
By Durwood J. Zaelke, Paul Bledsoe | Climate Change
By Dustin Mulvaney | Climate Change
By Georgina Gustin | Climate Change
By Rose Gottemoeller | Nuclear Risk
By Seyed Hossein Mousavian | Nuclear Risk, Nuclear Weapons
By Georgios Pappas | Biosecurity
By Mariana Budjeryn | Nuclear Weapons, Opinion
By François Diaz-Maurin | Nuclear Risk
By Sara Goudarzi | Disruptive Technologies
By François Diaz-Maurin | Nuclear Weapons
By Matt Field | Biosecurity
Watch the 2025 Doomsday Clock announcement on January 28