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Return to doomsday index CLIMATE SHOCK
Supervolcanic Winter
EXTREMELY RAREA sufficiently enormous eruption could inject material high into the atmosphere and temporarily cool the climate.
THE SCENARIO
What could happen?
Could supervolcanic winter cause the end of the world? A sufficiently enormous eruption could inject material high into the atmosphere and temporarily cool the climate. The exact effects would depend on location, scale, warning time, and the systems affected. This page separates the spectacular premise from preparations that are useful in ordinary emergencies too.
REALITY CHECK
The global food-system consequences matter more than lava reaching every doorstep.
THE USEFUL PLAN
Food-system resilience, clean air, safe water, and reliable public information.
THE VISUAL FILE
Inside the scenario
