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Drought US

Farmer Joe Fischer holds ears of corn showing the variety of kernal development Thursday, July 12, 2012, at Fischer Farms Inc. in Owensboro, Ky. Normally the silks would already be brown, Fischer said. "There is no pollen left because the silks were delayed. . . because it has been too hot and dry," Fischer said. All five Owensboro-area counties have been designated primary disaster areas because of drought. (AP Photo/The Messenger-Inquirer, John Dunham)

U.S. drought crisis

Triple-digit temperatures and weeks without rain withered and destroyed many crops in the Midwest, sending commodity soybean and grain prices soaring in 2012.