WASHINGTON (AP) — With Russia’s invasion of Ukraine and the specter of nuclear weapon use, Earth crept its closest to Armageddon, a science-oriented advocacy group said, moving its famous “Doomsday Clock†up to just 90 seconds before midnight.

“We are really closer to that doomsday,†former Mongolian president Elbegdorj Tsakhia said Tuesday at the Bulletin of Atomic Scientists annual announcement rating how close humanity is from doing itself in. He and former Ireland President Mary Robinson joined scientists to underscore what they consider a gathering of several existential threats, with Russian leader Vladimir Putin's actions and words chief among them.

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