Watering fields in California boosts rainfall in Southwest | Science News

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Watering fields in California boosts rainfall in Southwest

Irrigation has downstream effects on climate and runoff to Colorado River

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10:06pm, January 22, 2013

Farmers in California help make it rain in the American Southwest, a new computer simulation suggests. Water that evaporates from irrigated fields in California’s Central Valley travels to the Four Corners region, where it boosts summer rain and increases runoff to the Colorado River, researchers report online January 12 in Geophysical Research Letters.

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