Each year, the Bulletin of the Atomic Scientists, a non-profit group that sets the clock, decides whether the events of the previous year pushed humanity closer to or farther from destruction.
The closer to midnight we are, the more danger we’re in. According to the group, the clock “conveys how close we are to destroying our civilization with dangerous technologies of our own making.”
Last January, the clock remained at two minutes to midnight, which is as close as its been since 1953 during the height of the Cold War.
UPDATE:
“This year, the group moved the clock from two minutes to 100 seconds to midnight.
…”‘We are now expressing how close the world is to catastrophe in seconds – not hours or even minutes,’ said Rachel Bronson, president and CEO of the Bulletin of the Atomic Scientists. ‘It is the closest to Doomsday we have ever been in the history of the Doomsday Clock.’“

”'Civilization-ending nuclear war – whether started by design, blunder or simple miscommunication –
[or, in short, trump]
is a genuine possibility,’ the group said. 'Climate change that could devastate the planet is undeniably happening.’“ [Whether trump and Republicons continue to deny it, or not.]



