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

Russia

Ending the war in Ukraine: practical, if painful, possibilities

By Edward M. Ifft | Analysis, Nuclear Risk

To sanction North Korea, sanction those that won’t—Russia and China

By Aaron Arnold | 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

anti-war signs on Russian Embassy in London

Building a nuclear off-ramp following the war in Ukraine

By James E. Doyle | Nuclear Weapons

Russia finds another stage for the Ukraine “biolabs” disinformation show

By Filippa Lentzos, Jez Littlewood | Biosecurity

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

The A1 Verse: The world’s war machine

By Thomas Gaulkin | Special Topics

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

young climate activists at cop25

Russia seeks to revoke citizenship from anti-war climate activist

By Andrew Roth | Climate Change

VIDEO – Zelensky’s journey: A standup comic stands up to Putin

By Thomas Gaulkin | Multimedia, Special Topics

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 Putin’s betrayal of Ukraine could trigger nuclear proliferation

By Steven Pifer | Nuclear Weapons, Opinion