Overview
- It is a four‑second move from last year’s 89 seconds and the third step closer in four years.
- The Bulletin’s science and security board set the time after consulting an advisory committee that includes Nobel laureates.
- Rising nuclear competition among the United States, Russia and China, ongoing wars in Ukraine and the Middle East, and accelerating AI‑driven disinformation were cited as key drivers alongside climate pressures.
- The imminent expiration of the New START treaty on February 5 removes the final constraint on U.S.–Russia strategic arsenals, heightening fears of a renewed arms race.
- At the announcement, Alexandra Bell and Nobel laureate Maria Ressa urged urgent arms‑control renewal, AI governance, and stronger international cooperation to reduce catastrophic risk.