Environment

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FILE - In this June 2, 2013 file photo, a charred Radio Flyer wagon seen in the ruins of a home, one of at least five structures destroyed or severely damaged, in what has been called the Powerhouse fire in Lake Hughes, Calif. Victims of the wildfire are suing Los Angeles Department of Water and Power, claiming the utility started the massive blaze and failed to properly maintain power lines and equipment. (AP Photo/Reed Saxon, File)

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ADVANCE FOR MONDAY, APRIL 28 AND THEREAFTER - This March 30, 2014, photo shows University of Florida researchers working with invertebrate species caught in the Gulf Stream off the coast of Florida and headed for a unique shipboard laboratory where the scientists are studying the animals' genetics in real time. (AP Photo/Suzette Laboy)

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In this image from video, Katrina Morris, a wildlife biologist at the Georgia Department of Natural Resources, searches for signs of white-nose syndrome inside a cave near Atlanta. The disease that has killed more than 6 million cave-dwelling bats in the United States is on the move and wildlife biologists are worried. It gets its name from a white fungus that's found on the muzzles, ears and wings of infected bats. In Tennessee, some caves are closed to the public. At Mammoth Cave National Park, visitors are required to scrub their shoes after cave tours. Wildlife biologists say the threat is real -- there is no known way to stop the spread. (AP Photo/Alex Sanz)

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In this image from video, Katrina Morris, a wildlife biologist at the Georgia Department of Natural Resources, searches for signs of white-nose syndrome inside a cave near Atlanta. The disease that has killed more than 6 million cave-dwelling bats in the United States is on the move and wildlife biologists are worried. It gets its name from a white fungus that's found on the muzzles, ears and wings of infected bats. In Tennessee, some caves are closed to the public. At Mammoth Cave National Park, visitors are required to scrub their shoes after cave tours. Wildlife biologists say the threat is real -- there is no known way to stop the spread. (AP Photo/Alex Sanz)

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In this image from video, a team of biologists from the Georgia Department of Natural Resources search for signs of white-nose syndrome inside a cave near Atlanta. The disease that has killed more than 6 million cave-dwelling bats in the United States is on the move and wildlife biologists are worried. It gets its name from a white fungus that's found on the muzzles, ears and wings of infected bats. In Tennessee, some caves are closed to the public. At Mammoth Cave National Park, visitors are required to scrub their shoes after cave tours. Wildlife biologists say the threat is real -- there is no known way to stop the spread. (AP Photo/Alex Sanz)

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Commissioner Janet Carlson speaks at an emergency meeting of the Marion County Commission in Salem, Ore., on Thursday, April 24, 2014. The commission has ordered an incinerator to stop accepting boxed medical waste to generate electricity after learning the waste it's been burning may include tissue from aborted fetuses from British Columbia. (AP Photo/Jonathan J. Cooper)

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In this photo taken on Wednesday, April 23, 2014, Barry Conrad inspects his honey bees at his Canal Winchester, Ohio, honey farm. Ohio beekeepers have suffered significant damage to their bees due to weather and other factors.(AP Photo/The Columbus Dispatch, Eric Albrecht)

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In this photo taken on Wednesday, April 23, 2014, Barry Conrad inspects his honey bees at his Canal Winchester, Ohio, honey farm. Ohio beekeepers have suffered significant damage to their bees due to weather and other factors.(AP Photo/The Columbus Dispatch, Eric Albrecht)

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In this photo taken on Wednesday, April 23, 2014, an Italian queen bee, with a green marker, is shown in a hive operated by Barry Conrad at his Canal Winchester, Ohio, honey farm. Ohio beekeepers have suffered significant damage to their bees due to weather and other factors.(AP Photo/The Columbus Dispatch, Eric Albrecht)

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In this photo taken on Wednesday, April 23, 2014, Barry Conrad inspects his honey bees at his Canal Winchester, Ohio, honey farm. Ohio beekeepers have suffered significant damage to their bees due to weather and other factors.(AP Photo/The Columbus Dispatch, Eric Albrecht)

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In this photo taken on Wednesday, April 23, 2014, Barry Conrad inspects his honey bees at his Canal Winchester, Ohio, honey farm. Ohio beekeepers have suffered significant damage to their bees due to weather and other factors.(AP Photo/The Columbus Dispatch, Eric Albrecht)