Among the ideas pitched by the National Association of Manufacturers: fully repeal the stronger soot exposure standard ...

A top Trump adviser on Thursday confirmed the U.S. is moving closer to hammering out a deal with the mineral-rich Democratic ...

Environmentalists on Thursday revived efforts to protect a freshwater East Coast mussel called the brook floater.

Federal employees are bracing for large-scale layoffs where they compete with colleagues for the jobs that are left.

States will have fewer compliance problems with coal-fired power plants and other sources of haze-forming emissions like sulfur dioxide and soot.

The company said it is "considering its legal remedies" against the Trump administration order to stop construction.

Rep. Mike Lawler is urging the administration to protect a program to help low-income people heat and cool their homes.

Federal biologists have turned to captive-raised pupfish in a last-gasp bid to boost a population that's sagged to just 38 fish.

Judge Tanya Chutkan said the agency had "no rational explanation" for terminating the grants in issuing her now-temporarily ...

Phrases dealing with climate and women and security have been rephrased in new NATO legislation drafted by its committees and working groups with language thought to be more acceptable to the U.S. as ...

The numbers: Tesla sold just over 42,000 vehicles during the first quarter — a decline of more than 7,000 compared to last ...

Two California residents who own the royalties for oil and gas wells in Long Beach sued the California Division of Geologic ...