In this Aug. 8, 2012, photo, a dry corn field receives some rain from a passing thunder storm near Blair, Neb. Livestock farmers and ranchers seeing their feed costs rise because of the

 

              In this Aug. 8, 2012, photo, a dry corn field receives some rain from a passing thunder storm near Blair, Neb. Livestock farmers and ranchers seeing their feed costs rise because of the
In this Aug. 8, 2012, photo, a dry corn field receives some rain from a passing thunder storm near Blair, Neb. Livestock farmers and ranchers seeing their feed costs rise because of the worst drought in a quarter-century are demanding that the Environmental Protection Agency waive production requirements for corn-based ethanol. (AP Photo/Nati Harnik)