Environment

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Pope Francis delivers his speech in the Synod Hall during a conference on Modern Slavery and Climate Change at the Vatican on July 21, 2015. (Associated Press/File)

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In this undated photo provided by the Wildlife Conservation Research Unit, Cecil the lion rests in Hwange National Park, in Hwange, Zimbabwe. He was killed recently in an illegal hunt. (Andy Loveridge/Wildlife Conservation Research Unit via AP)

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In this image released by Paramount Pictures, Tom Cruise, left, and Jeremy Renner appear in a scene from "Mission: Impossible - Rogue Nation." (David James/Paramount Pictures and Skydance Productions via AP)

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Meet Zhenyuanlong, a newly discovered species that even surprised the scientists who examined the 125 million-year-old, intact fossil (Image from Steve Brusatte)

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In this June 6, 2013, file photo, a sign stands outside the National Security Administration (NSA) campus on in Fort Meade, Md. The Obama administration has decided that the National Security Agency will soon stop using millions of American calling records it collected under a controversial program leaked by former agency contractor Edward Snowden. (AP Photo/Patrick Semansky, File)

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Hillary Rodham Clinton's plan served as a bid to satisfy the Democratic Party's liberal base, which wants a more aggressive effort on climate change than President Obama has been able to muster. (Associated Press)

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This image made available by NASA on Friday, July 24, 2015 shows Pluto made by combining several images from two cameras on the New Horizons spacecraft. The images were taken when the spacecraft was 280,000 miles (450,000 kilometers) away from Pluto. (NASA/JHUAPL/SwRI via AP)

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White House National Security Adviser Susan E. Rice said the additional documents signed by the International Atomic Energy Agency and Iran "are not public" but that the administration would share the information with lawmakers behind closed doors. She indicated that the U.S. government doesn't have the documents. (Associated Press)

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messengers: Secretary of State John F. Kerry and Secretary of Energy Ernest Moniz visited Capitol Hill on Wednesday for a classified House briefing about the deal to curb Iran's nuclear program in exchange for relief from international sanctions. (Associated Press)

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Results from two undercover investigations at roadside zoos revealed inhumane treatment of tiger cubs exploited for photographic opportunities, indiscriminate breeding of tigers, rampant trade in cubs for public handling and dumping of the cubs once they were no longer profitable. The Humane Society of the United States conducted the investigations at Tiger Safari in Oklahoma and Natural Bridge Zoo in Virginia. These roadside zoos allow members of the public to pet, feed, pose and play with baby tigers for a fee. The investigations also provided a snapshot of the unfettered breeding of big cats for the exploitation of their cubs, the resulting surplus of adult big cats, and the animal welfare and public safety implications when large cubs are discarded after ceasing to be profitable. In this image, a capuchin monkey grabs the finger of a visitor at Natural Bridge Zoo. Inadequate public safety barriers that allow unmonitored access to animals is a violation of the federal Animal Welfare Act. (Michelle Riley/The Humane Society of the United States via AP Images)

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Results from two undercover investigations at roadside zoos revealed inhumane treatment of tiger cubs exploited for photographic opportunities, indiscriminate breeding of tigers, rampant trade in cubs for public handling and dumping of the cubs once they were no longer profitable. The Humane Society of the United States conducted the investigations at Tiger Safari in Oklahoma and Natural Bridge Zoo in Virginia. These roadside zoos allow members of the public to pet, feed, pose and play with baby tigers for a fee. The investigations also provided a snapshot of the unfettered breeding of big cats for the exploitation of their cubs, the resulting surplus of adult big cats, and the animal welfare and public safety implications when large cubs are discarded after ceasing to be profitable. In this image, tiger cub Deja chews on an exposed electrical outlet at Natural Bridge Zoo in between photo shoots with the public. (Michelle Riley/The Humane Society of the United States via AP Images)

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Pope Francis delivers his speech in the Synod Hall during a conference on Modern Slavery and Climate Change at the Vatican, Tuesday, July 21, 2015. Dozens of environmentally friendly mayors from around the world are meeting at the Vatican this week to bask in the star power of eco-Pope Francis and commit to reducing global warming and helping the urban poor deal with its effects. (AP Photo/Gregorio Borgia)

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New York Mayor Bill de Blasio, center, arrives in the Synod Hall to attend a conference on Modern Slavery and Climate Change at the Vatican, Tuesday, July 21, 2015. Dozens of environmentally friendly mayors from around the world are meeting at the Vatican this week to bask in the star power of eco-Pope Francis and commit to reducing global warming and helping the urban poor deal with its effects. (AP Photo/Gregorio Borgia)

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California Gov. Jerry Brown, right, delivers his speech in the Synod Hall as he attends a conference on Modern Slavery and Climate Change at the Vatican, Tuesday, July 21, 2015. Dozens of environmentally friendly mayors from around the world are meeting at the Vatican this week to bask in the star power of eco-Pope Francis and commit to reducing global warming and helping the urban poor deal with its effects. (AP Photo/Gregorio Borgia)

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Illustration on exposing government officials who contribute to government abuse and oppression by Alexander Hunter/The Washington Times

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The Smithsonian Institution's National Air and Space Museum is launching a crowdfunding campaign to conserve the spacesuit Neil Armstrong wore on the moon. Conservators say spacesuits were built for short-term use with materials that break down over time. (Associated Press)