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Nobel Physicist Warns: Nuclear War Threat Grows by 2% Annually

4/21/2026

Summary

Story summary

Nobel physicist David Gross warns of an existential threat from nuclear war within 35 years, citing a 2% annual chance due to the lack of new arms-control treaties and more nuclear powers.
He notes tensions involving Iran, the war in Europe, and near-conflict between India and Pakistan.
Gross highlights artificial intelligence (AI) in military decisions that could trigger dangerous actions.
Still, he says awareness can drive change, like climate action.

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Story summary

Nobel physicist David Gross warns of an existential threat from nuclear war within 35 years, citing a 2% annual chance due to the lack of new arms-control treaties and more nuclear powers.
He notes tensions involving Iran, the war in Europe, and near-conflict between India and Pakistan.
Gross highlights artificial intelligence (AI) in military decisions that could trigger dangerous actions.
Still, he says awareness can drive change, like climate action.