The authoritative guide to ensuring science and technology make life on Earth better, not worse.
By Richard “Drew” Marcantonio | Climate Change
By Morgan Shimabuku | Analysis, Climate Change
By Samuel H. Day Jr. | Nuclear Risk
By Aleksandr S. Kolbin | Analysis, Nuclear Risk
By Thomas Gaulkin | Special Topics
By Douglas P. Fry, Geneviève Souillac | Analysis, Nuclear Weapons
By Reshmi Kazi | Nuclear Weapons
Watch the 2025 Doomsday Clock announcement on January 28