Can the Doomsday Clock Go Back?

Yes — the Doomsday Clock has moved backward 8 times in its history. The most dramatic reversal was in 1991, when it moved from 10 minutes to 17 minutes as the Cold War ended.

What It Would Take Today

Reversing the clock from 85 seconds would require meaningful arms-control progress, climate policy breakthroughs, and de-escalation in active conflicts.

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