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In this Tuesday, Aug. 28, 2012 photo, Terry Slotty, one of the organizers of the Wisconsin State Cow Chip throw, stands over this year's chips in Sauk City, Wis. Organizers had to dip into chip reserves because the drought caused a shortage. (AP Photo/Carrie Antlfinger)

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.