Bulletin of the Atomic Scientists

AI is being woven into military systems intended to help human commanders make decisions in times of crisis, but there is no real-world data for training machines about nuclear war, write Ulysse Richard and Yorgo El Moubayed. thebulletin.org/2026/04/ai-nuc…

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Health economists are growing concerned about the future economic consequences of falling vaccination rates in the United States, writes Matt Field. In some regions, they are well below the level necessary to stop outbreaks of diseases such as measles. thebulletin.org/premium/2026-0…

The disasters at Chernobyl and Fukushima are often touted as mere cultural exceptions, either due to Soviet communism or to Japanese "groupism." Doing so is not only inaccurate or borderline racist, writes Maxime Polleri. It normalizes nuclear disasters. thebulletin.org/2026/04/from-s…

@jan_hoekema This article is published as part of a continuing collaboration between the European Leadership Network @theELN and the Bulletin of the Atomic Scientists.

In a dark world of wars and shifting geopolitical alignments, the Nuclear Non-Proliferation Treaty is needed more than even some state parties may realize, writes @jan_hoekema. thebulletin.org/2026/04/propos…

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How can the NPT Review Conference be salvaged? A divided review conference is a likely outcome, write Adam Scheinman and Mark Goodman. But there may be a narrow path to consensus if parties come ready to make difficult compromises on non-proliferation. thebulletin.org/2026/04/how-to…

As President Trump pushes to reopen talks with Iran, US negotiators should demand the surveillance of Bushehr and the removal of spent fuel to reduce proliferation risks from plutonium, writes Henry Sokolski. thebulletin.org/2026/04/missin…

What, exactly, is the Golden Dome? Could it work? And is it likely to be affordable? To answer those questions, it's necessary to go back in time, to the Reagan-era SDI program (alias "Star Wars") and even earlier, writes Jeff Hecht. ⬇️ thebulletin.org/2026/04/space-…

The Paris Climate Accords were signed on April 22—#EarthDay—10 years ago today. Jessica McKenzie interviews environmental historian Marc Hudson about what he's learned archiving climate history. thebulletin.org/2026/04/on-thi…

Join us for "Expertise on Demand: AI in Journalism, Academia, and Thought Leadership," live now. youtube.com/live/Hfcuj-K2U…

Join us in one hour for a discussion on the future of AI in journalism, academia, and thought leadership. ⬇️

Evidence of AI usage is increasingly occurring in peer-reviewed academic works. At what point does algorithmic assistance become an intellectual liability? Join us tomorrow, April 22, as experts discuss this and more. ⬇️ youtube.com/live/Hfcuj-K2U…

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"The amount of water stored in the snowpack historically peaks around April 1. But this year, the snowpack in many places was absent, or nearly so, by then—the lowest level in the 45 years since automated measurements began," writes Anna Marija Helt. thebulletin.org/2026/04/what-t…

@hmousavian "We cannot leave defense of the nonproliferation regime for later, however. If we do, we may find ourselves in a nuclear-armed crowd."

"President's Trump's disdain for the rules is endangering world order in many ways," write Frank N. von Hippel and @hmousavian. But we can't delay defense of the nonproliferation regime. "If we do, we may find ourselves in a nuclear-armed crowd." thebulletin.org/2026/04/taking…

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Washington is right to demand strong non-proliferation guarantees from Iran, writes Olamide Samuel @olamideDIY. But, it must treat the institutions that make these guarantees credible as something more than disposable tools. thebulletin.org/2026/04/it-see…