Environment

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President Obama and Chinese President Xi Jinping continued their talks at an economic summit in the capital city of Beijing. Despite the two nations vowing to curb greenhouse gas emissions, Mr. Obama's detractors say that he should be pressing China harder on economic agreements that keep U.S. interests front and center. (Associated Press)

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Milan, Kansas resident Orin Dodez cleans up his home after a nearby 4.8 earthquake struck the area Wednesday, Nov. 12, 2014. He said this is the fourth or fifth one he's felt recently and thinks that nearby fracking is the cause. (AP Photo/The Wichita Eagle - Kansas.com, Fernando Salazar) **FILE**

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President Obama and Chinese President Xi Jinping announced an unprecedented agreement to limit carbon emissions in an attempt to fight climate change in this 2014 file photo. (Associated Press) **FILE**

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President Obama left Beijing with a plan to reduce U.S. greenhouse gas emissions from 2005 levels by at least 26 percent by 2025, a goal that many say is unattainable. (Associated Press)

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An U.S. Customs and Border Protection Air and Marine agent peers out of the open door of a helicopter during a patrol flight over McAllen, Texas, near the U.S.-Mexico border. (Associated Press)

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Former Arkansas Gov. Mike Huckabee has taken up a presidential pose, with a new book due out in 10 weeks. (AP Photo/Steve Cannon) **FILE**

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National Edition Opinion cover for November 12, 2014 - Forcing women into combat (Illustration by Nancy Ohanian for Tribune Content Agency)

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The picture taken with the navigation camera on Rosetta and released by the European Space Agency ESA shows the boulder-strewn neck region of Comet 67P/Churyumov–Gerasimenko, with the smaller lobe on the left and the larger lobe on the right. It was captured from a distance of 9.7 km from the center of the comet (about 7.7 km / 4.8 miles) from the surface) on Oct. 28, 2014. On Wednesday, Nov. 12, 2014 the Philae lander will be detached from Rosetta to land on the comet. (AP Photo/ESA)

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This Oct. 5, 2009, file photo shows Joan Rivers posing as she presents "Comedy Roast with Joan Rivers" during the 25th MIPCOM (International Film and Programme Market for TV, Video, Cable and Satellite) in Cannes, southeastern France. The comedian, who was 81, died Sept. 4, 2014. (AP Photo/Lionel Cironneau, File)

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Dierks Bentley brings his high-energy show to Royal Farms Arena (formerly Baltimore Arena) on Nov. 11.

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Three noncommissioned officers from Marine Barracks, Washington at 8th & I, perform during a Tuesday Sunset Parade at the Marine Corps War Memorial in Arlington, Va., July 30, 2013. There are seven companies with various sections that comprise Marine Barracks Washington, the U.S. Marine Band, the U.S. Marine Drum & Bugle Corps, Guard Company, Company A, Company B, Headquarters & Service Company, and Marine Corps Institute Company. Â (Marine Corps photo by Lance Cpl. Dan Hosack/Released)

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Marine Heavy Helicopter Squadron 464 assists Marines of 2nd Reconnaissance Battalion conduct special purpose insertion and extraction training aboard Marine Corps Base Camp Lejeune, N.C., March 13. Â (U.S. Marine Corps photo by Lance Cpl. Ryan Joyner)

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Old Corps/New Corps Sgt. Chesty XIII, official mascot of the U.S. Marine Corps, right, stares down his successor Recruit Chesty, left, during training at Marine Barracks Washington, D.C., March 20, 2013. (U.S. Marine Corps photo by Sgt. Dengrier Baez) Â

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Cpl. Chan Lathung, a native of Oakland, Calif., and a crew chief with Marine Heavy Helicopter Squadron 362, 3rd Marine Aircraft Wing (Forward), scans the surrounding area for insurgent activity during a general support flight over Helmand province, Afghanistan, July 27. The squadron flies several general support flights weekly delivering mail, food and ammunition to troops throughout the area. (U.S. Marine Corps photo by Cpl. Isaac Lamberth)

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Marine Corps Military Free Fall Instructors assigned to Marine Detachment â€” Fort Bragg, release the ashes of Sgt. Brett Jaffe (1971-2012), a Marine rigger, above Phillips Drop Zone at Yuma Proving Grounds, Ariz., on July 26, 2012. "It was an honor and privilege to take this Marine on his last jump and give him a proper hail and farewell," said Staff Sgt. Marty Rhett.Marines in photo (clockwise, starting with the flag): Gunnery Sgt. Brian Boger, Gunnery Sgt. Mike Latham, Gunnery Sgt. Jimmy Smith, Staff Sgt. Lennie Castro, Staff Sgt. Seth Wright, Staff Sgt. Marty Rhett. (Marine Corps photo by Air Force Staff Sgt. Johnny Gunn)