Environment

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In this undated photo provided by Maritime New Zealand, the yacht Nina, center, is tied at dock at a unidentified location. Searchers said Thursday, June 27, 2013, they have grave concerns for seven people aboard the American schooner that has been missing for three weeks between New Zealand and Australia. (AP Photo/Maritime New Zealand)

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President Obama pauses during a speech on climate change at Georgetown University on June 25, 2013, in Washington. (Associated Press)

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** FILE ** A mother chimpanzee relaxes with her baby at Chimp Haven in Keithville, La., on Tuesday, Feb. 19, 2013. The Fish and Wildlife Service says it wants to protect chimpanzees as endangered both in captivity and in the wild, a move that could affect the use of chimps in medical research. (AP Photo/Gerald Herbert)

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Gen. Raymond T. Odierno, Army chief of staff, announced sharp reductions in the number of combat brigades and the shifting of thousands of soldiers from bases across the country as part of a long-planned move to cut the size of the service. (Associated Press)