Ukraine

ice melting on a siberian lake

Russia’s war has chilling effect on climate science as Arctic temperatures soar

By Jessica McKenzie | Climate Change

Roman Abramovich.

Were Ukrainian peace negotiators poisoned?

By Matt Field | Analysis

Stepnogorsk biologial weapons plant.

Amid false Russian allegations of US “biolabs” in Ukraine, it’s worth asking: What is a bioweapon?

By Matt Field | Disruptive Technologies

Wildfires break out in Chernobyl amid a non-functioning radiation-monitoring system

By Susan D’Agostino | Nuclear Energy, Nuclear Risk

The Russian attack on the Zaporizhzhia nuclear power plant

Could an attack on Ukrainian nuclear facilities cause a disaster greater than Chernobyl? Possibly, simulations show.

By Jungmin Kang, Eva Lisowski | Nuclear Energy, Nuclear Risk

VIDEO: Which war crimes might Russians have committed in Ukraine?

By Thomas Gaulkin | Special Topics

Russian troops undergo training

Russia’s non-proliferation disinformation campaign

By Abigail Stowe-Thurston | Chemical Weapons

10 must-read Twitter threads on the war in Ukraine

By Dawn Stover | Biosecurity, Nuclear Energy, Nuclear Weapons

Volodymyr Zelenskyy paid a visit to the wounded defenders of Ukraine undergoing treatment at a military hospital. Credit: Україна. Accessed via Wikipedia. Public domain mark 1.0.

Here’s what Western leaders need to remember about Zelensky’s emotional appeals

By Roger Petersen | Nuclear Risk, Opinion

Sharon Squassoni

Rethinking the unthinkable: Ukraine reveals the need for nuclear disarmament

By Sharon Squassoni | Analysis, Nuclear Weapons

Daniel Holz

Mastermind or madman? Putin shows why the world needs new nuclear agreements

By Daniel Holz | Analysis, Nuclear Weapons

army soliders with a helicopter in the background

US Army plan to combat climate change lacks the fighting spirit

By Neta C. Crawford | Analysis, Climate Change