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Doomsday clock ticks down, closest ever to "global catastrophe"
The Doomsday clock was set at 89 seconds to midnight on Tuesday morning, putting it the closest the world has ever been to ...
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Doomsday Clock set at 89 seconds to midnight, representing threat to human existence and the planet
The world is closer than ever to destruction, according to the Doomsday Clock, an attempt by the Chicago-based Bulletin of the Atomic Scientists to warn world leaders and civilians of man-made ...