"The Obama administration on Wednesday moved to curtail the practice of mountaintop mining to extract coal, angering mining companies that said the move threatens thousands of jobs."

"Unwilling to wait for Congress to act, the Obama administration announced on Wednesday that it was moving forward on new rules to regulate greenhouse gas emissions from hundreds of power plants and large industrial facilities."

"In what is being touted as the world's biggest dam-removal project, an agreement was reached Tuesday to remove four dams on the Klamath River and restore a 300-mile migratory route for California's beleaguered salmon."

"Sens. Barbara Boxer (D-Calif.), John Kerry (D-Mass.) and nine Senate supporters kicked off the autumn global warming debate today with a campaign-style rally releasing their comprehensive climate bill."

"Nike announced Wednesday that it would resign from the board of the United States Chamber of Commerce, becoming the latest company to break with the group over climate policy."

"Great Lakes water levels could drop by up to two feet by the turn of the century as temperatures rise, according to a recent series of reports released by the Union of Concerned Scientists."

Sen. David Vitter (R-LA) is blocking Senate confirmation of Paul Anastas to head EPA's Office of Research and Development -- demanding that EPA have the National Academy of Sciences review its assessment of formaldehyde risks.

"After months of deliberations, state environmental regulators on Wednesday released long-awaited rules governing natural gas production in upstate New York, including provisions to oversee drilling operations near New York City’s water supplies."

"An early version of Senate climate legislation obtained today by E&E confirms that Sens. Barbara Boxer (D-Calif.) and John Kerry (D-Mass.) largely plan to follow the path their Democratic colleagues pursued in the House-passed climate bill."

"This fall may prove to be a watershed moment for the parks," as a six-part PBS series by Ken Burns highlights their glories and their problems -- air pollution, a changing climate, and needed upkeep among them.

A new generation of urban, blue-collar environmentalists is waging war over "environmental justice" in the dense, polluted Latino neighborhoods of Los Angeles.

"The Environmental Protection Agency detailed its plans on Tuesday for research into the possible health and environmental risks of nanomaterials, tiny substances that are finding growing use in products like sunscreens and industrial adhesives."

"Bureau of Land Management's proposal for the West Mojave 'does not contain a reasonable range of alternatives' to limit off-road-vehicle routes in the sensitive habitat, the ruling states."

"Hampton Roads Sanitation District, based in Virginia Beach, has agreed to pay a $900,000 civil fine and to take action to reduce alleged sanitary sewer overflows from its collection system and nine sewage treatment plants that have polluted the Chesapeake Bay and its tributaries."

"Dirty water from residential washing machines is a significant source of a toxin polluting Puget Sound, according to a study released Tuesday."