Nuclear weapons, climate change and biological threats are the biggest concerns.
The clock is a symbolic way to show the public how close scientists believe the world is to a human-made apocalypse.
What is the Doomsday Clock? Scientists reset 2026 world clock time closest to midnight and global catastrophe, than ever ...
The human race is at its closest point yet to destroying itself, according to a reset of the ominous but symbolic "Doomsday ...
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