Now I Get It: Tick tock on the doomsday clock: closer to global catastrophe?

Every year since 1947, researchers from the Bulletin of the Atomic Scientists decide whether events from the previous year have pushed humanity closer to or further away from global catastrophe. To symbolize the situation, a so-called doomsday clock indicates how close the time is to midnight - or total destruction. This year the clock moved 30 seconds closer to midnight, and the scientists said that "to call the world nuclear situation dire is to understate the danger - and its immediacy."

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