Environment

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2Just lumber remains at the site of one of the chicken houses at the Hartness Farms, a 12-chicken house operation that was leveled in Noxapater, Miss., Wednesday, April 30, 2014. The farm was sold on Friday and its new owners were at the farm when a tornado demolished the property and injured them. There were no chickens at the farm. (AP Photo/Rogelio V. Solis)

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Standing amid debris, chicken farmer Cindy Wilkes recalls for her friend Tosha McLemore, how she and her family rode out Monday's tornado that destroyed their Noxapater, Miss., home and flattened their neighboring 8-chicken house farm operation Wednesday, April 30, 2014. The farm raises broilers for Tyson and each house has 28,500 chickens. Several poultry raising farms near Louisville, were either destroyed or damaged by the storms. (AP Photo/Rogelio V. Solis)

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Ventilation fans sit on the ground behind the remains of the Hartness Farms, a 12-chicken house operation that was leveled in Noxapater, Miss., Wednesday, April 30, 2014. The farm was sold on Friday and its new owners were at the farm when a tornado demolished the property and injured them. There were no chickens at the farm. (AP Photo/Rogelio V. Solis)

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Tyson Foods workers continue tornado cleanup at Wilkes Farm, an 8-chicken house operation that was leveled in Noxapater, Miss., Wednesday, April 30, 2014. The farm raises broilers for Tyson and each house has 28,500 chickens. Several poultry raising farms near Louisville were damaged or destroyed by tornadoes Monday. (AP Photo/Rogelio V. Solis)

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Chicken houses remain on both sides of one that was flattened at Pine Ridge Farm by a tornado Monday in Noxapater, Miss., as seen in this photograph taken Wednesday, April 30, 2014. Several poultry farms were damaged by a tornado on Monday. (AP Photo/Rogelio V. Solis)

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Terry Hartness, former owner of Hartness Farm, stands on the slab that was an office as he tells how the new owners held on to a full size refrigerator when a tornado hit the farm, a 12-chicken house operation that was leveled in Noxapater, Miss., Wednesday, April 30, 2014. The farm was sold on Friday and its new owners were at the farm when a tornado demolished the property and injured them. There were no chickens at the farm. (AP Photo/Rogelio V. Solis)

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Tyson Foods workers continue tornado cleanup at Wilkes Farm, an 8-chicken house operation that was leveled in Noxapater, Miss., Wednesday, April 30, 2014. The farm raises broilers for Tyson and each house has 28,500 chickens. Several poultry raising farms near Louisville were damaged or destroyed by tornadoes Monday. (AP Photo/Rogelio V. Solis)

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A surviving broiler flaps its wings amid the ruins of Wilkes Farm, an 8-chicken house operation that was leveled in Noxapater, Miss., Wednesday, April 30, 2014. The farm raises broilers for Tyson and each house has 28, 500 chickens. Several poultry raising farms near Louisville were damaged or destroyed by tornadoes Monday. (AP Photo/Rogelio V. Solis)