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U.S. EPA and environmental groups today will ask the Supreme Court to review a federal court's ruling from last year that tossed out the agency's rule for air pollution that drifts across state lines.

In August 2012, the U.S. Court of Appeals for the District of Columbia Circuit remanded...

A Denver-based energy exploration company that has been searching for oil and gas on the Blackfeet Indian Reservation alongside Glacier National Park announced Tuesday that it would cease drilling and shut down the project.

The company, Anschutz Exploration Corp., released a statement...

It's looking increasingly likely that U.S. EPA will miss its April 13 deadline to finalize its carbon dioxide rule for new power.

For one thing, the agency has yet to sign off on the rule internally and send it to the Office of Management and Budget to begin a review process that would...

Environmental groups filed an appeal today of a federal judge's ruling that upheld the Bureau of Land Management's decision to lease more than 4,000 acres for coal mining in Wyoming.

The groups say U.S. District Court for the District of Columbia Judge Colleen Kollar-Kotelly's ruling last...