"A coalition of environmental groups and Native American tribes is asking officials to overhaul federal mining standards ahead of new uranium mining near the Grand Canyon."

"A food safety advocacy group sued an arm of the U.S. Department of Agriculture on Tuesday, saying it illegally withheld public information on genetically engineered crops."

"From GMO labeling to pesticides to the source of the meat you buy, a handful of companies are spending heavily to keep information off your food labels."

"Christopher Horner, an attorney who claims that the earth is cooling, is known within the scientific community for hounding climate change researchers with relentless investigations and public ridicule, often deriding scientists as 'communists' and frauds. ... New court documents reveal one source of Horner’s funding: big coal."

"California legislators aiming to pass more stringent regulations on the sale and dissemination of ivory and rhinoceros horns received a boost last Friday when a San Francisco man pleaded guilty to selling an undercover federal agent two black rhinoceros horns for $55,000. The art dealer Lumsden Quan and Mill Valley man Edward Levine will face sentencing in December."

"No leaks, no spills, no impact on climate change. The Keystone XL pipeline would have 'no impact' on the environment if it were approved and built, Republican presidential candidate Donald Trump said on Tuesday. For that reason, the billionaire said he would approve the controversial project 'immediately' if elected president."

"Several large solar power plants under construction in the United States have in the past few months promised to do something that none has done before: offer prices equal to or lesser than that of a natural gas-fired power plant, even as gas is abundant and cheap."

"President Obama came to Las Vegas Monday to throw his weight behind the booming solar energy industry in its recent political struggles, and to announce a bevy of initiatives to promote clean-energy growth in America’s homes and on its rooftops. It was the first stop in a climate and energy-focused tour that will also take the president to New Orleans and Arctic Alaska this month."

"Americans’ lawns now cover an area three times larger than any irrigated crop in the U.S."

"As a lover of ancient rock art, Steve Acerson usually roams Utah’s backcountry searching for images of hunters and rams carved on boulders and canyon walls. But one morning, on a hillside speckled with those prehistoric petroglyphs, he was also finding signs of a younger civilization: Shotgun shells. Bullets. Shredded juniper trees. Exploded cans of spray paint."