Artificial intelligence was not listed as a chief concern two years ago, the last time the Bulletin of the Atomic Scientists moved the clock closer to global catastrophe.

Nuclear, disease and AI fears factor into 2025 Doomsday Clock reset The nuclear threat is especially concerning this year, said Manpreet Sethi, a member of the board and distinguished fellow at the Centre for Air Power Studies in New Delhi.

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