At the outset of the Cold War era, the United States and the Soviet Union rapidly built up large nuclear arsenals as part of the prevailing doctrine of deterrence, under which each nation attempted to ...

This video reacts to claims about conditions two years after a nuclear war and examines them using scientific reasoning and ...

This is read by an automated voice. Please report any issues or inconsistencies here. “At the end of the Cold War, global powers reached the consensus that the world would be better off with fewer ...

On January 27, 2026, the editors of the Bulletin of the Atomic Scientists moved the hands of their famous “Doomsday Clock” to 85 seconds to midnight―the closest setting, since the appearance of the ...

For the first time in over 50 years, there are no nuclear arms controls in place between the world’s two largest nuclear powers, the US and Russia.

Studies of the potential climate effects of nuclear war in the 1980s focused on northern hemisphere, large-scale nuclear conflicts, and predicted more extreme global “nuclear winter” scenarios.