The final report from a landmark federal study on hydraulic fracturing, or fracking, found no evidence that chemicals or brine water from the gas drilling process moved upward to contaminate drinking water at a site in western Pennsylvania.
The Environmental Protection Agency gave the public 45 more days to weigh in on a plan that would for the first time curb the pollution blamed for global warming from the nation's coal-fired power plants.
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Environmental Protection Agency Administrator Gina McCarthy said Monday she's not backing down on her agency's efforts to implement a new rule that would assert regulatory authority over many of the nation's streams and wetlands despite criticisms that it amounts to a federal water grab.
A lawsuit against a water company, chemical producer, airport and others over a January chemical spill won't get a hearing for another year.
A new study says that the drilling procedure called fracking didn't cause much-publicized cases of tainted water, blaming contamination on leaky natural gas wells instead.
Over the summer, Sens. Tom Udall, D-N.M., and David Vitter of Louisiana, the top Republican on the Senate Environmental and Public Works Committee, provided a revised draft of their chemical regulation bill to committee chairwoman Barbara Boxer, who told The Associated Press this week that the draft still falls short.
Tiny single-cell organisms discovered living underground could help with the problem of nuclear waste disposal, according to researchers involved in a study at The University of Manchester.
Earth's protective ozone layer is beginning to recover, largely because of the phase-out since the 1980s of certain chemicals used in refrigerants and aerosol cans, a U.N. scientific panel reported Wednesday in a rare piece of good news about the health of the planet.
Gov. Pat McCrory said Tuesday he won't sign a new law regulating Duke Energy's toxic coal ash pits because he has problems with it, but he will allow the legislation to become law without his signature.
The U.S. Environmental Protection Agency can't force several Wyoming power plants to install new pollution-control equipment while the state's legal challenge to federal regulations plays out in court, an appeals court panel ruled Tuesday.
Mining industry groups say a ban on the filing of new hard rock mining claims near the Grand Canyon is irresponsible public policy, but the federal government and conservationists say it will protect water flowing through the canyon from potential contamination.
The Republican-controlled House approved a bill to block the Obama administration from implementing a rule that asserts more regulatory authority over many of the nation's streams and wetlands, and would threaten farmers' ability to farm their own land.
A bankruptcy judge is concerned that a chemical company may abandon the site of a massive January spill without cleaning it up.
Algae that turned Lake Erie green and produced toxins that fouled the tap water for 400,000 people in the Toledo area are becoming a big headache for those who keep drinking water safe even far beyond the Great Lakes.
An Ohio man who uses a biblical reference and a statement against "poisoned waters" on billboards near two wells for disposal of gas-drilling wastewater says the messages are coming down.
Plans by New England officials to expand natural gas have drawn fights in the past year among energy companies, environmentalists and local and state officials. Now, a lawyer who represents a pipeline company, manufacturers and two organized labor groups is accusing environmental advocates of abandoning their early support for cleaner energy and trying to block pipeline projects.
Environmentalists want to lift a cap on fines for violations, while industry officials want to limit who can ask for a public hearing as each side prepares for their last shot at changing proposed rules governing high-volume oil and gas drilling in Illinois.
Here's a look by the numbers at the nation's worst offshore oil disaster, which occurred in April 2010 when BP PLC's Macondo well blew, resulting in an explosion and deaths aboard the drilling rig Deepwater Horizon.
Environmentalists, recreational fishermen and people who make their living on the Gulf of Mexico are hailing a federal judge's ruling that could mean $18 billion in additional fines for BP over the nation's worst offshore oil spill.
Coal companies announced an agreement Thursday to consolidate ownership of a Montana mine in a deal aimed at boosting exports of the fuel to Asia through ports on the U.S. West Coast.
A judge's ruling in the 2010 Gulf of Mexico oil spill case that could cost BP an additional $17.6 billion in fines sent the company's shares tumbling.
BP acted "recklessly" and bears most of the responsibility for the nation's worst offshore oil spill, a federal judge concluded Thursday, exposing the energy giant to roughly $18 billion in additional penalties.
A federal judge plans to decide next week whether to block the release of oil and gas leases in Nevada that critics say will be used for hydraulic fracturing and cause more environmental harm than the Bureau of Land Management admits.
Twelve state attorneys general are urging an appeals court to decide quickly on a lawsuit over the legality of proposed carbon emission standards.