"With a deadline looming for approval of a federal plan that would open the Gulf of Mexico to deepwater fish farming, House lawmakers and conservationists are plotting strategies to block such offshore ventures until Congress creates a system to regulate them."

Methane problems in drinking water wells are more common than has been acknowledge by state regulators in Pennsylvania, which is one of the states experiencing a natural gas drilling boom.

The Intergovernmental Panel on Climate Change, which won attention along with the Nobel Prize in 2007, now faces a challenge as climate policy and diplomacy lag behind climate science.

"NEW BEDFORD, Mass. -- Noxious fumes at a trash disposal facility sent 119 people to hospitals Monday, including two who were listed in critical condition."

"In food safety bill, the House gives the FDA a deadline to prove Bisphenol A is safe, or restrict its use in products used by pregnant women, and young children."

"Union Carbide is defending its former chief executive now wanted for arrest in India, saying that managers at the company’s plant in Bhopal could not have anticipated a gas leak that killed 10,000 people 25 years ago."

"More than twice as many D.C. children as previously reported by federal and local health officials had high levels of lead in their blood amid the city's drinking water crisis, according to congressional investigators, throwing into doubt assurances by those officials that the lead in tap water did not seriously harm city children."

A tangle of New Jersey lawsuits raises issues about what restrictions should be placed on builders seeking to develop farmland where pesticides were formerly used.

A rash of headaches, coughing fits, red eyes, and other symptoms has closed Oak Ridge Elementary School in North Carolina while local, state, and federal officials figure out what is causing it.

"The push for green power could spawn a rush for small hydropower projects in the Northwest."