Donald Trump gives his acceptance speech during the final day of the Republican National Convention, July 21, in Cleveland. Mark J. Terrill/AP hide caption

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Mark J. Terrill/AP

Hear A Related Story From Don Gonyea On The Campaign Trail

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Smoke rises from chimneys of coal-based power plants in the Sonbhadra District of Uttar Pradesh, India. The Washington Post/Getty Images hide caption

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The Washington Post/Getty Images

Young Indians Learn To Fight Pollution To Save Lives

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Rajendra K. Pachauri speaks at the U.N. Climate Change Conference in Lima, Peru, on Dec. 11, 2014. He is stepping down as chairman of the Intergovernmental Panel on Climate Change. Juan Karita/AP hide caption

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Juan Karita/AP

A Falcon 9 SpaceX rocket stands ready for a sunset launch from complex 40 at the Cape Canaveral Air Force Station in Cape Canaveral, Fla., on Sunday. It will be carrying aloft the DSCOVR satellite. John Raoux/AP hide caption

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John Raoux/AP

NASA says this "blue marble" image is the most detailed true-color image of the entire Earth to date. NASA hide caption

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NASA

Satellite Set To Stream Daily Images Of Earth From Space

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Former Vice President Al Gore. Jon Kalish/NPR hide caption

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Jon Kalish/NPR

Al Gore: Most Americans Still Agree Climate Change Is Getting Worse

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Who will be Romney's VP? The naming of his running mate is likely going to come in mid-August, after his foreign trip and the conclusion of the Olympics. Ken Rudin collection hide caption

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Ken Rudin collection

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