The Bulletin of Atomic Scientists announced Tuesday that the "Doomsday Clock" is now set to 89 seconds to midnight.

Scientists move the Doomsday Clock to 89 seconds before midnight, calling on the U.S., China and Russia to address global risks.

Atomic scientists on Tuesday moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine, tensions in other world hot spots, military applications of artificial intelligence and climate change as factors underlying the risks of global catastrophe.

The Doomsday Clock has moved to 89 seconds to midnight due to nuclear threats, misuse of technological advances, and climate change. The ongoing Ukraine war and alarming climate change indicators like rising sea levels also contribute.

Doomsday Clock moves closer to midnight amid Russian threats and AI fears - Bulletin of the Atomic Scientists says the United States, China and Russia have the prime responsibility to pull the world b