Environmental groups warned the proposals would pave the way for more oil and gas industry activity on public lands.

There are 25 million more people living with bad air than last year's report showed, according to air quality data from the ...

A trio of congressmen are co-leading the Locomotives Act, to stop California from imposing some regulations on trains operating across state lines.

The rule delay comes as the Republican-controlled Congress is working to revoke California’s Clean Air Act waivers — the same ...

They also called for a pragmatic energy transition roadmap, immediate enactment of a Clean Air Act, and the enforcement of strict emissions standards for power plants under the Air Pollution Control R ...

Better wood and better stoves are key components of cleaner air in a cold-weather region where atmospheric inversions trap ...

Air quality was improving across the country after the passage of the 1963 Clean Air Act, Pruitt said, but 10 years ago, progress halted. Increasing extreme heat events and wildfires have led to ...

Nearly half of the people in the U.S. live in areas with unhealthy levels of air pollution — and Louisville is one of those ...

Dear PAO, I was in Tagaytay last weekend and saw a very old car being driven, which I assume was being used for a wedding ...