Republican-run states contend in a lawsuit that the agency's deadlines for the plans are arbitrary and capricious.

California has decided to abandon its phase out of diesel trucks and requiring cleaner locomotives because of the incoming ...

While Chevron’s new petrochemical furnace will lower its intensity of carbon emissions, it will also increase other harmful ...

As people return to the structures spared from Los Angeles wildfires, experts warn that they should be careful of the air ...

From the time you get up in the morning until you go to bed at night, and even while you are asleep, the U.S. Environmental ...

Calculating air pollution from wildfires and other events has become more complicated. That doesn’t mean it’s necessarily ...

An Environmental Protection Agency action expected Wednesday will unfreeze $150 million in paused Fairbanks-area road ...

Federal environmental regulators have proposed a new rule to slash carcinogenic air pollution from chemical plants prevalent ...

Following power plant closures and EPA intervention, Detroit and Downriver are seeing lower levels of SO2 pollution. One ...

Twelve Texas counties have recently exceeded federal air quality standards for particulate matter, commonly known as soot.

The Air Quality Index (AQI) can tell you a lot about the health of the environment, but there are still measures you can take ...

If the DEC accepts Goodyear's plan, the company could take interim steps to curb the amount of ortho-toluidine it emits as ...