The global Doomsday clock: Scientists set the "doomsday clock" to only 90 seconds to midnight

The Bulletin of the Atomic Scientists on Tuesday set its symbolic "Doomsday Clock" closer to midnight than ever before, noting threats of nuclear war, disease and climate volatility had been exacerbated by Russia's invasion of Ukraine. 

The time on the clock was moved to 90 seconds to midnight for 2023. Midnight is supposed to symbolize the end of humanity. 

The change in the clock comes after three COVID pandemic-assisted years at a previous record of 100 seconds to midnight. 

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