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

Nevada Test Site

Introduction: Nuclear testing in the 21st century—legacies, tensions, and risks

By François Diaz-Maurin | Nuclear Weapons

New confidence-building measures can reduce tensions around subcritical tests

By Julien de Troullioud de Lanversin, Christopher Fichtlscherer | Nuclear Risk, Nuclear Weapons

Soviet nuclear test, 1949

Preserving the nuclear test ban after Russia revoked its CTBT ratification

By Pavel Podvig | Nuclear Risk, Nuclear Weapons

crater left over from underground nuclear test

Environmental impacts of underground nuclear weapons testing

By Sulgiye Park, Rodney C. Ewing | Nuclear Risk, Nuclear Weapons, Special Topics

radiation warning sign in Nevada desert

The logic for US ratification of the Comprehensive Nuclear Test Ban Treaty

By Steven Pifer | Nuclear Risk, Nuclear Weapons

Kim Jong-un and Hwasong-17 ICBM

To do or not to do: Pyongyang’s seventh nuclear test calculations

By Rachel Minyoung Lee | Nuclear Risk, Nuclear Weapons