"As kids, many of us come to see snakes as frightening, evil creatures. In some places, that ingrained fear has taken a toll on the snake population. ... Some folks ... are trying to improve one snake's image - before it disappears."

"The natural gas industry is moving to disclose information about chemicals used in controversial extraction technologies in the wake of spills at drilling sites in Pennsylvania and as New York is proposing new regulations."

General Electric is the latest company to complain about the policies of the U.S. Chamber of Commerce in opposition to climate change legislation. “The Chamber does not speak for us on climate legislation, but we are still a member,” said GE spokesman Peter O'Toole.

"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."

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.

"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."

"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."

"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."

"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."

"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.