Environment

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Landing barges rest in the waters off the beaches of Iwo Jima during World War II in Feb. 1945. U.S. soldiers await the signal to start the invasion of the strategic Japanese Volcanic Island 730 miles south of Tokyo. The Island was undergoing heavy air and sea bombardment. (AP Photo/Joe Rosenthal)

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U.S. Fourth Division Marines move in from the beach on Iwo Jima, Japanese Volcanic Island, on Feb. 19, 1945. A dead Marine lies at right in the foreground. Mt. Suribachi, in the background, was turned into a beehive of guns by Japanese troops. It was scaled by the U.S. Marines, who took control. (AP Photo/Joe Rosenthal)

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Amtracs and trucks used by the “Fighting Fourth” Marine Division as it battled its way ashore at Iwo Jima, Japan, litter the black sands of the beach of D-Day on Feb. 19, 1945. First aid stations (background) were set up among the debris of wrecked and blasted Amtracs, landing barges, jeeps and trucks. (AP Photo/U.S. Marine Corps)

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North Carolina's Ashley Dai returns the volley to UCLA during the women's doubles match of the Division 1 NCAA tennis championship, Tuesday, May 20, 2014, in Athens, Ga. (AP Photo/David Tulis)

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FILE - This May 10, 2014 file photo provided by the Waste Isolation Pilot Plant shows torn and open bags of magnesium oxide on top of standard waste boxes at the WIPP site in Carlsbad, N.M. Workers at a West Texas nuclear waste disposal site are closely monitoring containers from Los Alamos National Lab, Tuesday, May 20, 2014, a day after New Mexico officials announced a type of kitty litter is believed to have caused a radiation leak at the federal government's troubled nuclear waste dump. (AP Photo/Waste Isolation Pilot Plant, File)

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FILE - This April 2, 2014 file image provided by the U.S. Department of Energy shows workers underground inside the Waste Isolation Pilot Plant facility in Carlsbad, N.M., for the first time since the Feb. 14 radiological release. Workers at a West Texas nuclear waste disposal site are closely monitoring containers from Los Alamos National Lab, Tuesday, May 20, 2014, a day after New Mexico officials announced a type of kitty litter is believed to have caused a radiation leak at the federal government's troubled nuclear waste dump. (AP Photo/U.S. Department of Energy, File)

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FILE - This June 3, 2013 file photo shows chef Dominique Ansel making Cronuts, a croissant-donut hybrid, at the Dominique Ansel Bakery in New York. The popular New York pastry rivals it's Chicago counterpart, the Wonut, a pastry that is part donut and waffle. (AP Photo/Richard Drew, File)

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This photo taken on May 14, 2014, Washington State Ecology Department, shows markings on a rusted propane tank that washed ashore at Iron Springs Park, about 2 miles north of Copalis Beach, Wash. Authorities are checking to verify if the tank is debris from the March 2011 tsunami in Japan. (AP Photo/Washington State Ecology Department)

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This photo taken on May 14, 2014, Washington State Ecology Department, shows markings on a rusted propane tank that washed ashore at Iron Springs Park, about 2 miles north of Copalis Beach, Wash. Authorities are checking to verify if the tank is debris from the March 2011 tsunami in Japan. (AP Photo/Washington State Ecology Department)