It’s now two minutes to midnight, according to the Doomsday Clock which is maintained by the Bulletin of Atomic Scientists. Midnight on the clock would be nuclear war. Founded in 1945 by Manhattan Project scientists, the Bulletin uses the powerful visual rhetoric of a clock clicking down to detonation to call attention to the world’s closeness to atomic annihilation. When the scientists change the clock’s position either forward or backwards, it attracts media attention worldwide.
Clock timeline and history, https://thebulletin.org/timeline
“Keepers of The Doomsday Clock Say We’re Now Only 2 Minutes to Midnight,” https://www.sciencealert.com/keepers-of-doomsday-clock-put-closest-mark-midnight-since-cold-war-2-minutes