Illegal logging is widespread in Cambodia, and efforts to prevent it have had only a limited impact. Much of the wood is destined for China. Michael Sullivan/NPR hide caption

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Highly detailed sonar systems aboard the research vessel Pritchard gave researchers a clear view of the sediment on the seafloor off Long Island. Courtesy of John Goff/University Of Texas hide caption

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The eye of Hurricane Earl in the Atlantic Ocean, seen from a NASA research aircraft on Aug. 30, 2010. This flight through the eyewall caught Earl just as it was intensifying from a Category 2 to a Category 4 hurricane. Researchers collected air samples on this flight from about 30,000 feet over both land and sea and close to 100 different species of bacteria. Jane Peterson/NASA hide caption

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Pope Benedict XVI leads prayers on Nov. 27, 2011, in St. Peter's Square at the Vatican. The leader of the world's Roman Catholic Church called for a "responsible, credible and united response" to the problem of climate change. But in the U.S. at least, studies show the view even of religious Americans on climate change is much more likely to be shaped by their politics than their faith. Vincenzo Pinto /AFP/Getty Images hide caption

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John Larson, owner of Snus Hill Winery in Madrid, Iowa, blends wine from Iowa grapes with grapes from other parts of the country. He says the area's lack of rain was really good for grapes. Sarah McCammon /Iowa Public Radio hide caption

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Opponents of fracking demonstrate during the Winter X Games 2012 in Aspen, Colo. Doug Pensinger/Getty Images hide caption

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"We will respond to the threat of climate change, knowing that the failure to do so would betray our children and future generations," President Obama said Monday during his second inaugural address. John Moore/Getty Images hide caption

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