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

nuclear winter

UN to conduct new study of the broad impacts of nuclear war. Not all countries want to know

By François Diaz-Maurin | Nuclear Weapons

The US presidential candidates are not confronting the nuclear threat that haunts the world

By Robert Jay Lifton | Analysis, Nuclear Weapons

Robots standing with a nuclear winter landscape in distance

Today’s AI threat: More like nuclear winter than nuclear war

By Daniel Zimmer, Johanna Rodehau-Noack | Artificial Intelligence, Disruptive Technologies

Anasazi cliff ruins

Book excerpt—Catastrophic climate change: Lessons from the dinosaurs

By Michael E. Mann | Climate Change

huge cloud after Hiroshoma atomic bombing and firestorm

The climate blind spot in nuclear weapons policy

By Cameron Vega | Climate Change, Nuclear Risk, Nuclear Weapons, Voices of Tomorrow

Nowhere to hide: How a nuclear war would kill you—and almost everyone else. (Chinese)

By François Diaz-Maurin, Thomas Gaulkin | Multimedia, Nuclear Risk, Nuclear Weapons

Nowhere to hide: How a nuclear war would kill you—and almost everyone else. (RU)

By François Diaz-Maurin, Thomas Gaulkin | Multimedia, Nuclear Risk, Nuclear Weapons

Nowhere to hide: How a nuclear war would kill you—and almost everyone else.

By François Diaz-Maurin, Thomas Gaulkin | Investigative Reporting, Multimedia, Nuclear Risk, Nuclear Weapons

trump nuclear football

Eight theories on Trump’s “incredible” new secret nuclear weapon

By John Krzyzaniak | Nuclear Weapons, Satire

Alexandra bell John Holden nuclear weapons presidential election 2020

Discussion: Nuclear weapons policy and the US presidential election

By | Multimedia, Nuclear Risk

A map showing nuclear strikes during an India-Pakistan war scenario

How an India-Pakistan nuclear war could start—and have global consequences

By Alan Robock, Owen Brian Toon, Charles G. Bardeen, Lili Xia, Hans M. Kristensen, Matthew McKinzie, R. J. Peterson, Cheryl S. Harrison, Nicole S. Lovenduski, Richard P. Turco | Doomsday Clock, Nuclear Weapons

Nuclear foreboding: Shadows cast by nuclear winter

By R. Turco | Climate Change, Nuclear Weapons