nuclear winter
theoretical cool down of the Earth's climate that would occur following a nuclear war (as a result of dust and airborne particles blocking the Sun's heat and light)
Nuclear winter
nuclear winter
Noun
1. a long period of darkness and extreme cold that scientists predict would follow a full-scale nuclear war; a layer of dust and smoke in the atmosphere would cover the earth and block the rays of the sun; most living organisms would perish
(hypernym) catastrophe, cataclysm
Nuclear Winter
Prediction by some scientists that smoke and debris rising from massive fires of a nuclear war could block sunlight for weeks or months, cooling the earth's surface and producing climate changes that could, for example, negatively affect world agricultural and weather patterns.
nuclear winter