"The chairman of the Nuclear Regulatory Commission said Monday that it should decide within 90 days on how to address recommendations to be issued this week by a task force that examined the lessons of the Fukushima Daiichi nuclear accident in Japan. Almost simultaneously, House Republicans and the industry’s trade association warned him not to rush."

"The devastation that bark beetles and fungus have wreaked on hundreds of thousands of acres of whitebark pine trees in the northern Rockies has been tracked and chronicled for 30 years. Now the Fish and Wildlife Service has weighed in with a finding that climate change threatens the long-term survival of the species."

"As the nation moves through a year of remarkable floods, drought and its deadliest tornado season in half a century, the broadcast meteorologist has emerged as an unlikely hero."

"A bat killed by a wind turbine in Somerset can lead to higher tomato prices at the Wichita farmers market."

"Lamb, beef and cheese generate the most greenhouse gases of 20 popular meat, fish, dairy and vegetable proteins, according to a new study from the Environmental Working Group."

"Powerful business and industry groups appealed to EPA Administrator Lisa Jackson Friday to pull back upcoming smog standards, calling the rules a test case of the White House's commitment to ensuring regulations don’t hinder U.S. competitiveness."

As cash-strapped local governments in Florida cut their mosquito-control budgets, the fight against a surge in mosquito populations is getting ugly -- and mosquitos may be threatening both health and economic well-being.

"An oppressive and potentially deadly summertime mix of sizzling temperatures and high humidity baked a large swath of the country again on Sunday, pushing afternoon heat indexes in dozens of cities to dangerous levels."

"It's not yet lights out: Republicans have revived their effort to crush energy-saving lightbulbs, with a vote in the House of Representatives as early as Friday."

"With a handful of Democratic votes, the House Energy and Commerce Committee passed a bill Wednesday that limits the EPA's ability to regulate coal ash and says coal ash residue deserves little more scrutiny and regulation than municipal trash."