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

Organization for the Prohibition of Chemical Weapons

Soldiers practice responding to a chemical or biological weapons attack.

How Russia worked to undermine UN bioweapons investigations

By Filippa Lentzos, Jez Littlewood | Chemical Weapons

US President Barack Obama and Aung San Suu Kyi.

Myanmar should finally come clean about its chemical weapons past—with US help

By Gregory D. Koblentz, Madeline Roty | Technology and Security

Watch the 2025 Doomsday Clock announcement on January 28