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Impact winter: Extreme cooling of the Earth’s climate following the impact of a massive asteroid or comet that throws enough debris into the atmosphere to greatly reduce the amount of sunlight that reaches the Earth’s surface.
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Tom Skilling is chief meteorologist at WGN-TV. His forecasts can be seen Monday through Friday on WGN-TV News at noon and 9 p.m.
WGN-TV meteorologists Steve Kahn, Richard Koeneman and Paul Dailey plus weather producer Bill Snyder contribute to this page.
