'Doomsday Clock' closer to midnight, humanity's demise

STORY: It was set to 100 seconds to midnight in 2020 and has remained there until now.

This year, its setting reflects for the first time a world in which Russia's invasion of Ukraine has revived fears of nuclear war.

"The possibilities that the conflict could spin out of anyone's control remains high," said Rachel Bronson, the president and CEO of the Bulletin of the Atomic Scientists.

Climate change and the COVID-19 pandemic also factored into the Doomsday Clock's new time.