India, Jan. 29 -- The Doomsday Clock was set at 89 seconds to midnight, the closest the Clock has ever been to midnight in its 78-year history.

The 2025 Clock time signals that the world is on a course of unprecedented risk, and that continuing on the current path is a form of madness.

The United States, China, and Russia have the prime responsibility to pull the world back from the brink. The world depends on immediate action.

The Doomsday Clock's time is set by the Bulletin of the Atomic Scientists' Science and Security Board (SASB) in consultation with its Board of Sponsors, which includes nine Nobel Laureates.

Factors included nuclear weapons threats, the climate crisis, biological threats, and disruptive technologies like artific...