"PITTSBURGH - Six years into a natural gas boom, Pennsylvania has for the first time released details of 243 cases in which companies prospecting for oil or gas were found by state regulators to have contaminated private drinking water wells."

"An outbreak of algae-produced biotoxins that attack animals' brains also poses a grave risk to humans"

"In just 80 years, some 2,000 square miles of its coastal landscape have turned to open water, wiping places off maps, bringing the Gulf of Mexico to the back door of New Orleans and posing a lethal threat to an energy and shipping corridor vital to the nation’s economy."

"In a sharp rebuke of state plans for a massive water tunnel system in Northern California, federal environmental officials say that the project would violate pollution standards and could worsen conditions for imperiled fish species."

"The Environmental Protection Agency (EPA) hit back Thursday after a top Republican accused it of trying to take over large pieces of private land and water."

"The federal government is protecting 20 types of colorful coral by putting them on the list of threatened species, partly because of climate change."

"FLATEY ISLAND, Iceland – When the days grew long, seabirds flocked to this hamlet on the edge of the Arctic to rear their chicks under the midnight sun. “Kria,” shrieked the terns, calling summer up from the slumbering ground. Black cliffs were transformed into snowbanks of white kittiwakes. Puffins whirred between land and sea. Murres plied the shoreline, fulmars patrolled the skies. Everywhere sounded their vibrant chorus."

"Of all the global warming gasses, methane is one of the very worst. Pound for pound, the Environmental Protection Agency says its effect on global warming is 20 times greater than that of carbon dioxide. And though its lifetime in the atmosphere is substantially shorter than carbon dioxide, it’s “more efficient at trapping radiation.”

"A massive stream of wastewater tainted with hydrocarbons has been flowing into Utah from oil and gas mining on Colorado’s West Slope."

"The Western U.S. is getting higher and drier."