Related Question on Metaculus:
The Doomsday Clock is a regular publication by the Bulletin of Atomic Scientists which represents the threat of a manmade global catastrophe. It was first published in 1947, saying "it is 7 minutes to midnight". The clock began as a warning of the threat of a large-scale nuclear conflict, but has since included threats such as climate change and "disruptive technologies" such as biological weapons and cyber attacks.
In January 23, 2020, the BAS moved the clock to 100 seconds to midnight, its closest setting ever, and in January 27, 2021 they re-affirmed that setting. The clock has moved 24 times until now, backwards 8 times and forwards 16 times.