Environment: Debate over a Frozen Planet

A major study supports the grim prediction of nuclear winter

It is two weeks after a major nuclear war, and the searing white flashes of 25,000 bombs have faded into a black drizzle of radioactive fallout. Yet Armageddon is not complete: for miles above the earth, sunlight is blotted out by plumes of smoke from the vast conflagrations in which the major cities of the Northern Hemisphere have been consumed. This thick veil of soot and dust slowly circulates through various layers of the atmosphere, blanketing entire continents, creating a world of frigid darkness....

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