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The U.S. Environmental Protection Agency had the legal authority to retroactively veto a water pollution permit for one of West Virginia's largest mountaintop removal coal mines years after it was issued, ...

The Keystone XL pipeline, designed to convey tar sands crude oil from Alberta, Canada, to oil refineries on the Texas Gulf Coast, still remains mired in controversy, finger-pointing, and what many consider to be bureaucratic foot-dragging.

RELATED: U.S. Rules Climate Change Won't Be a Threat to the Keystone Pipeline — and Vice Versa See full coverage

MORGANTOWN, W.Va. (AP) — The U.S. Environmental Protection Agency had the legal authority to retroactively veto a water pollution permit for one of West Virginia's largest mountaintop removal coal mines years after it was issued, a federal appeals court ruled Tuesday.

A federal appeals court says the Environmental Protection Agency had the legal authority to veto permits for one of West Virginia's largest mountaintop removal coal mines. The U.S. Court of Appeals for ...

The Environmental Protection Agency again is raising objections to the proposed Keystone XL pipeline that would carry oil from western Canada to the Texas Gulf Coast. Despite more than four years of study, ...

A sharp decline in the price of oil this month is making gasoline cheaper at a time of year when it typically gets more expensive. It's a relief to motorists and business owners and a positive development ...

WASHINGTON (AP) — The Environmental Protection Agency again is raising objections to the proposed Keystone XL pipeline that would carry oil from western Canada to the Texas Gulf Coast.

NEW YORK (AP) — A sharp decline in the price of oil this month is making gasoline cheaper at a time of year when it typically gets more expensive. It's a relief to motorists and business owners and a positive development for the economy.

The average price of a gallon of gas in Massachusetts is down another 3 cents. AAA Southern New England reports Monday that self-serve, regular has dropped to an average of $3.44 per gallon, 7 cents below ...

Gas prices in Rhode Island have dropped by nine cents a gallon. Monday's price survey from AAA Southern New England finds that a gallon of self-serve regular gasoline is averaging $3.52, down from $3.61 ...

AAA Michigan says gasoline prices have risen about 24 cents during the past week to a statewide average of about $3.75 per gallon. The auto club says Monday the average is about 9 cents per gallon less ...

The average retail cost of a gallon of gas in Maine is down by another nickel. Price-monitoring website MaineGasPrices.com reports Monday that gas has dropped to an average of $3.53 per gallon. That's ...

The big drop in gas prices in Ohio didn't last long. A gallon of regular gas in Ohio was listed at an average of about $3.65 in Monday's survey from auto club AAA, the Oil Price Information Service and ...

Wind energy installations almost doubled in Pennsylvania last year, but the industry still provides only about 1 percent of the state's electricity, far behind Iowa, Texas and others. Pennsylvania now ...

The average U.S. price of a gallon of gasoline has dropped 11 cents over the past two weeks. The Lundberg Survey of fuel prices released Sunday says the price of a gallon of regular is $3.54. Midgrade ...

By Silke Koltrowitz ZURICH (Reuters) - Swiss industrial group ABB is to buy U.S. solar energy company Power-One Inc for about $1 billion, betting that growth in emerging markets will revive a sector ravaged by overcapacity and weakening demand in recession-hit Europe. The world's biggest supplier of industrial motors and power grids said on Monday it had agreed to pay $6.35 per share in cash for Power-One, the second-largest maker of solar inverters that allow solar power to be fed into grids. ...

By Valerie Volcovici WASHINGTON (Reuters) - Top industry groups and a dozen states have asked the Supreme Court to review a lower court decision upholding the Obama administration's plan to limit greenhouse gas emissions generated by power plants and vehicles. The parties, which had until Friday to submit petitions to the high court, are challenging a 2012 decision by the D.C. Circuit Court of Appeals that upheld rules issued by the Environmental Protection Agency (EPA). ...

Tests of pipe samples from Chevron Corp.'s El Segundo refinery found corrosion to an extent similar to the pipe that failed and caused a large fire at the company's Richmond facility, a report released ...

BILLINGS, Mont. (AP) — Internal investigators faulted the Environmental Protection Agency on Thursday for years of delays in completing health studies needed to guide the cleanup of a Montana mining town where hundreds of people have died from asbestos exposure.