Therefore, we are moving the clock forward," said Daniel Holz, chair of the Science and Security Board of the Bulletin of the Atomic Scientists, according to CBS News."The war in Ukraine remains a source of nuclear risk,

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.

On Tuesday morning, the Doomsday Clock was set at 89 seconds to midnight, which is the closest it has ever been to midnight in the 78 years since it started running. So what has set off the historic change? Essentially everything, according to the 2025 Doomsday Clock statement.