The authoritative guide to ensuring science and technology make life on Earth better, not worse.
By Hans M. Kristensen, Matt Korda, Eliana Johns, Mackenzie Knight | Nuclear Notebook, Nuclear Weapons
By Thomas Gaulkin | Nuclear Risk, Nuclear Weapons
By Rumtin Sepasspour, Courtney Tee | Disruptive Technologies
By Erik English | Multimedia, Nuclear Risk
By John Mecklin, Thomas Gaulkin | Climate Change, Disruptive Technologies, Nuclear Risk, Special Topics
By Erik English | Analysis, Nuclear Risk
By Hui Zhang | Investigative Reporting, Nuclear Weapons
By Nicola Leveringhaus | Nuclear Weapons
By Gregory Kulacki | Nuclear Weapons
Watch the 2025 Doomsday Clock announcement on January 28