Environment

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Tiger Woods chips to the 16th green during the second round of the PGA Championship golf tournament on the Ocean Course of the Kiawah Island Golf Resort in Kiawah Island, S.C., Friday, Aug. 10, 2012. (AP Photo/Evan Vucci)

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This photo from Aug. 1, 2012, shows a drought damaged ear of corn in a Westfield, Ind., cornfield. U.S. corn growers could have their worst crop in a generation as the harshest drought in decades takes its toll, the government reported Aug. 10, 2012, as it forecast the lowest average yield in 17 years. (Associated Press)

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**FILE** A man pumps gas at a Chevron gas station in San Francisco on Aug. 7, 2012. (Associated Press)

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Bryce Harper has made noticeable strides for the Nationals this season, but he’s still trying to adjust to major league strike zones. (Associated Press)

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With their normal diet shriveled by summer heat and drought, hungry bears search for sustenance evertwhere from garbage to homes’ porches to cars. (Associated Press)

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Michael Watkins, MSL mission manager at NASA's Jet Propulsion Laboratory, answers questions Aug. 9, 2012, during a news conference on Curiosity Mars Rover at the laboratory in Pasadena, Calif. (Associated Press)

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An Airbus A319 of the Australian Antarctic Division taxis on the runway at the McMurdo base in Antarctica in this undated photo. (AP Photo/Australian Antarctic Division)

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Jason Bateman (center) and Michael Cera (right) are returning to “Arrested Development” for a fourth season of the show, which ran on Fox for three seasons from 2003 to 2006 before being canceled. The show resumed production Tuesday. (Associated Press)

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Syrians on motorcycles look Aug. 8, 2012, at the damage of a destroyed house after it was hit by an airstrike that killed six Syrians in the town of Tal Rifat, Syria. (Associated Press)

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A billboard with a mannequin dangling from a hangman's noose near the Strip in Las Vegas. Authorities said calls began coming in early Aug. 8, 2012, from drivers worried the dummy along Interstate 15 near was a real person. A Nevada Highway Patrol spokesman said the sign is a publicity stunt done in bad taste. (Associated Press/KVVU)