Extra rainfall may stem warming in Midwest | Science News

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Extra rainfall may stem warming in Midwest

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8:00pm, October 12, 2004

Predicted increases in rain in parts of the Midwest may reduce the temperature effect that scientists expect from global warming during the next few decades.

Computer simulations of the climate in the lower 48 United States suggest that if atmospheric concentrations of planet-warming carbon dioxide rise about 1 percent per year, the average temperature across the region will be about 3°C hotter in the 2040s than it was in the 1990s, says Zaitao Pan, a climatologist at St. Louis University.

The climate models also suggest that low-altitude winds that bring moist air from the Gulf of Mexico to the Great Plains will be stronger in summer months in the 2040s than they were in the 1990s. That

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