"One of America's corporate giants is investing billions of dollars in the new boom of oil and gas drilling that relies on a controversial extraction method known as fracking."

"Drivers who end up behind John Cooley this week will quickly lose their patience. Cruising around the eastern United States with his car window open, he slows down or stops every few hundred metres, cocks an ear and taps on a data-logger strapped into the passenger seat."

"A liberal watchdog group says the State Department’s inspector general (IG) is probing possible conflicts of interest in the federal environmental review of the proposed Keystone XL oil sands pipeline."

"Wal-Mart Stores pleaded guilty Tuesday to improperly dumping hazardous waste in California and Missouri, agreeing to pay almost $82 million in fines."

"A radical shift in the world energy picture is raising environmental concerns in the United States."

"Exposure to pesticides and other chemicals is linked to an increased risk of developing Parkinson's disease, according to a fresh look at some past research."

"A freight train smacked into a truck carrying garbage and careened off the tracks in Rosedale Tuesday afternoon, triggering an explosion felt throughout the region and sending up a plume of black smoke visible for miles."

"Federal judges [Tuesday] rejected challenges from both industry and environmental groups to U.S. EPA's air standards for lead smelters."

"More than two years ago the Marcellus Shale Coalition, a gas industry trade group, began building an electronic database to house information about the water quality in thousands of private wells across Pennsylvania."

"Top water decision-makers from seven Western states plan to join conservation groups and Indian tribes in San Diego on Tuesday to begin hammering out rules for squeezing every useable drop from the overtaxed Colorado River."

Oil-and-chemical billionaire David Koch lobbies hard to influence U.S. politics and environment and energy policy. Did his money influence the kind of coverage presented on public television?

"Mistakes were made, and one narrative too readily embraced, in coverage of the blast. Meanwhile, The Dallas Morning News excelled."

"Bisphenol A is used to line drinks cans and in tests affected the way genes work in the brains of laboratory rats."

"A key satellite positioned to track severe weather in the eastern United States has failed, just as the 2013 Atlantic hurricane season is about to start."

"FLAGSTAFF, Ariz. --  A uranium mining company seeking a mineral lease on state land in northwestern Arizona could have a hard time transporting the ore off-site because of the Navajo Nation's objections to an industry that left a legacy of death and disease among tribal members."