Watering the air

Crop irrigation and farming practices could mean a cooler, wetter Midwest

By Stephen Ornes, 00:00 AM February 10, 2010

The average temperature around the world is rising. People living in the U.S. Midwest might find this fact hard to believe, though. Two new studies show that in America’s heartland, summers are now cooler and wetter than they were in years past. The scientists suggest that the change in the Midwest climate may have happened because of farming.


The first study was led by David Changnon, a climatologist at Northern Illinois University in DeKalb. He presented one of the studies in January during...

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