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

Nuclear Weapons

Why policy makers should beware claims of new ‘arms races’

By Haydn Belfield, Christian Ruhl | Artificial Intelligence, Nuclear Weapons, Opinion, Voices of Tomorrow

A screen shot from the Prelinger Archive's print of "Duck and Cover" (ca. 1951). "Duck and Cover" is a Civil Defense film, demonstrating the "Duck and Cover" technique of minimizing harm from a nuclear blast. Source: Official publications of the US government.

This is an official New York City video about how to survive a nuclear attack. Please do not freak out.

By John Mecklin | Nuclear Risk, Nuclear Weapons

Then-US President Barack Obama and then-Russian President Dmitry Medvedev issue a joint statement announcing their pursuit of a New START treaty in London in April 2009. (White House photo by Pete Souza.)

Reviving arms control, post-Ukraine: Why New START still matters

By Stephen J. Cimbala, Lawrence J. Korb | Nuclear Weapons

silhouettes of sailors waving at India plane fly-by

Nuclear Notebook: How many nuclear weapons does India have in 2022?

By Hans M. Kristensen, Matt Korda | Nuclear Notebook, Nuclear Risk, Nuclear Weapons

anti-war signs on Russian Embassy in London

Building a nuclear off-ramp following the war in Ukraine

By James E. Doyle | Nuclear Weapons

Nuclear cooling tower reflection

Blockchain beyond cryptocurrency: A revolution in information management and international security

By Cindy Vestergaard, Lovely Umayam | Cyber Security, Disruptive Technologies, Nuclear Weapons

How commercial satellite imagery could soon make nuclear secrecy very difficult—if not impossible

By Igor Moric | Nuclear Energy, Nuclear Risk, Nuclear Weapons

Theater writer Chris Thorpe

Interview: Chris Thorpe aims to give theatergoers an “emotional explosion” over nuclear weapons

By Louis Reitmann | Interviews, Nuclear Weapons

How disagreements over Russia’s nuclear threats could derail the NPT Review Conference

By Jamie​ Kwong | Nuclear Weapons

Russia-Belarus nuclear sharing would mirror NATO’s—and worsen Europe’s security

By Nikolai N. Sokov | Nuclear Weapons

US President Bill Clinton, Russian President Boris, Yeltsin, and Ukrainian President Leonid Kravchuk sign the Trilateral Agreement on transferring nuclear weapons from Ukraine to Russia and associated matters in Moscow, January 1994. Photo credit: Joseph P. Harahan, historian of the Defense Threat Reduction Agency, and the Clinton Presidential Library.

Why security assurances are losing their clout as a nuclear nonproliferation instrument

By Ariel E. Levite | Nuclear Weapons

illustration of chess pieces made of flags of the nine nuclear weapons states falling over with Ukrainian flag in the background

Has the Russia-Ukraine war blown up the global nuclear order?

By Lauren Sukin | Nuclear Risk, Nuclear Weapons