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

nuclear risk

Rebuttal: Current nuclear weapons policy not safe or sane

By Stewart Prager, Alan Kaptanoglu | Analysis, Nuclear Risk, Nuclear Weapons

Nuclear Notebook: How many nuclear weapons does the United States have in 2022?

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

Russian President Vladimir Putin spoke at the military parade marking the end of World War II. May 9, 2022. Red Square, Moscow. Credit: Website of the President of Russia. CC BY 4.0.

On Victory Day, Putin points fingers but doesn’t escalate war

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons

Ukrainian refugees from 2022, crossing into Poland. Credit: Міністерство внутрішніх справ України. Accessed via Wikimedia Commons. CC BY 4.0.

How to host a refugee, spot fake war images, say “welcome” in Ukrainian, and more

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons

Illia Ponomarenko, former defense reporter for the Kyiv Independent.

Illia Ponomarenko: Ukraine’s most-followed war journalist is a “dude” from Donbas

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons

An artist's rendition of Russian President Vladimir Putin's nuclear posture. Photo credit: kremlin.ru, changes made, CC BY 3.0.

Will Putin go nuclear? A timeline of expert comments

By Susan D’Agostino | Nuclear Risk, Nuclear Weapons

Alley of abandoned villages - 162 plaques with the names of permanently evacuated settlements during 1986-1991 after the Chernobyl accident. Credit: Margarita Kalinina-Pohl (2018).

Chernobyl is still changing: Four enduring stories and a recent one

By Susan D’Agostino | Nuclear Energy, Nuclear Risk

People walking in Bucharest, Romania. Credit: Jake Stimpson. Accessed via Wikimedia Commons. CC BY 2.0.

Poll: Russia’s nuclear saber-rattling is rattling neighbors’ nerves

By Lauren Sukin, Alexander Lanoszka | Nuclear Risk, Nuclear Weapons

Working trip of the President of Ukraine to the Kyiv region. Creid: Official Website of the president of Ukraine. Accessed via Wikimedia Commons. CC BY 4.0.

Russia committed war crimes. But are they genocide?

By Susan D’Agostino | Analysis, Nuclear Risk, Nuclear Weapons

If Ukraine chooses neutrality, what could that look like?

By Mariana Budjeryn | Nuclear Risk, Opinion

P5 Press Conference at the United Nations. April 2013. Credit: U.S. Mission Geneva / Eric Bridiers. Accessed via Flickr. https://www.flickr.com/photos/us-mission/8663813428 CC BY-ND 2.0.

Nuclear arms control: Still necessary, but more difficult than ever

By Stephen J. Cimbala, Lawrence J. Korb | Analysis, Opinion

Internal Troops of the Ministry for Internal Affairs (Russia). Credit: Vitaly V. Kuzmin. Accessed via Wikimedia Commons. CC BY-SA 4.0.

Russian forces leave Chernobyl; UN watchdog offers Ukraine more help

By Susan D’Agostino | Nuclear Energy, Nuclear Risk