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

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TransCanada already has begun construction on a southern section of the Keystone XL pipeline. Since it doesn't cross the U.S.-Canadian border, it doesn't require approval from the State Department and President Obama. Sarah A. Miller/AP hide caption

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Interior Secretary Ken Salazar speaks at the dedication for the Southwest's first urban wildlife refuge on the southern edge of Albuquerque, N.M., on Sept. 27, 2012. Salazar has announced that he'll leave his post in late March and return to Colorado. Susan Montoya Bryan/AP hide caption

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Matt Damon's character in the movie Promised Land comes to town to convince a landowner to allow a gas company to drill on his property. Scott Green/Focus Features hide caption

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A woman walks past a cabana complex pulled off its foundations by Superstorm Sandy in Sea Bright, N.J., in November. Seth Wenig/AP hide caption

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Dixon has gathered her Nativity collection from many sources around the world. She says this set is made of banana fronds and was given to her by a friend who was a missionary in Nigeria. Jeff Brady/NPR hide caption

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Like many other brick-and-mortar retailers, Wal-Mart is trying to attract shoppers increasingly accustomed to online shopping. In one experiment, it's offering same-day delivery in four select markets. Paul Sakuma/AP hide caption

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