Each year, the doomsday clock is update to predict how close leading nuclear scientists think we are to annihilation. Prediction is expressed as the number of "minutes until midnight". Fewer minutes suggests we are closer to pushing the button.
https://thebulletin.org/doomsday-clock/timeline/
Here in 2022 we are 100 seconds from midnight.
Back in 1991 we were at 17 minutes till midnight.
In 1960 the BAS estimated we were at 7 minutes till midnight.
Why is the BAS so alarmed about what is happening today? For every year's prediction, they provide an explanation.
Here in 2022 their primary concerns were the building up of the Iranium nuclear stockpile, China's new ICBM solos, North Korea's continued efforts to develop a hyper-sonic ICBM, and the instability of the US democracy with the potential of nuclear devices falling into the hands of terrorists.
https://thebulletin.org/doomsday-clock/current-time/