The Doomsday Clock now stands at 90 seconds to midnight, the closest it’s ever been, thanks mostly to Russia’s war on Ukraine and the rapidly escalating effects of climate change. What does it mean that the Doomsday Clock is at 90 seconds to midnight? Bulletin of the Atomic ScientistsWhy does the Bulletin of the Atomic Scientists update the Doomsday Clock? Since 1947, the Doomsday Clock has moved forward and back several times. 2023's clock is the closest to midnight it's ever been; the time to midnight dropped from minutes to seconds at the beginning of 2020.
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