Environment

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An Injured person receives treatment outside the Medicare Hospital in Kathmandu, Nepal, Saturday, April 25, 2015. A strong magnitude-7.9 earthquake shook Nepal's capital and the densely populated Kathmandu Valley before noon Saturday, causing extensive damage with toppled walls and collapsed buildings, officials said. (AP Photo/ Niranjan Shrestha)

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FILE - In this Dec. 19, 2014 file photo, oil pump jacks work in unison, in Williston, N.D. In the year since the energy industry last gathered in for its big annual confab in Houston, prices for oil and natural gas took a dive that few, if anyone, saw coming. In 2015, natural gas has fallen even further than oil as U.S. drillers have been producing enormous amounts of gas and mild winter weather kept demand relatively low. (AP Photo/Eric Gay, File)

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Despite being up 2-0 in the series, Wizards guard Bradley Beal said "we have to play like we're down 0-2. We can't stop being aggressive. We can't change anything." (Nathan Denette/The Canadian Press via Associated Press)

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"Preserving mankind's cultural heritage is an increasingly difficult challenge in today's society. To think that some of these treasured artifacts were recovered from garages, exposed to the elements, is unimaginable," ICE Director Sarah R. Saldana said.

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Sen David Vitter, Louisiana Republican (Associated Press) ** FILE **

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French President Francois Hollande, center, arrives for a meeting of the European Socialists prior to an emergency EU summit in Brussels on Thursday, April 23, 2015. (AP Photo/Francois Walschaerts) ** FILE **

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Gov. Jerry Brown responds to a reporters question concerning he meeting he held businesses affected by the drought at his Capitol office in Sacramento, Calif., Wednesday, April 16, 2015. Cities expected to slash water use in the drought are revolting against Brown's mandatory water restrictions, and dozens of agencies are telling water regulators that their assigned water use targets are unrealistic and unfair. (AP Photo/Rich Pedroncelli)

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President Obama wipes his forehead April 22, 2015, while meeting with the crowd after touring Everglades National Park in Florida on Earth Day. Obama used the visit to warn of the damage that climate change is already inflicting on the nation's environmental treasures. (Associated Press) **FILE**

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In this April 16, 2015, file photo, a sign warning of canine respiratory illness is posted at a dog park in Chicago. An outbreak of canine flu has sickened more than 1,000 dogs in the Midwest, killing several and stirring concern among animal lovers nationwide that the highly contagious virus will sideline their pets. (AP Photo/M. Spencer Green, File)

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Hillary Rodham Clinton speaks to student Travis Lemieux during a campaign stop at New Hampshire Technical Institute on Tuesday. (Associated Press)

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This March 1, 2010 photo released by the U.S. Fish and Wildlife Service shows a bistate distinct population of the greater sage grouse, rear, as he struts for a female at a lek, or mating ground, near Bridgeport, Calif. A bird found only in California and Nevada no longer faces the threat of extinction and doesn't require federal protection, officials said just months before a more-sweeping decision is due on whether to declare other sage grouse threatened or endangered in 11 Western states. (Jeannie Stafford/U.S. Fish and Wildlife Service via AP)

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Former Alaska Gov. Sarah Palin speaks during a campaign rally in West Des Moines, Iowa, on April 27, 2014. (Associated Press) **FILE**

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Sen. David Vitter, Louisiana Republican (Associated Press) **FILE**

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Illustration on the adverse impact of five years of Obamacare by Alexander Hunter/The Washington Times

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In this April 25, 1990, photograph provided by NASA, most of the giant Hubble Space Telescope can be seen as it is suspended in space by Discovery's Remote Manipulator System (RMS) following the deployment of part of its solar panels and antennae. (NASA via AP)