The air in 12 Texas counties exceeded federal soot standards, but Texas regulators say only four should face consequences.

The state withdrew its pioneering clean air regulations for diesel trucks and trains, acknowledging they wouldn’t win federal approval. The state intended to end sales of trucks powered by fossil ...

I believe that climate change is real,” Zeldin said, adding that he would work to “ensure we are protecting our environment, ...

New EPA guidelines require new HVAC systems to use certain refrigerants, which will increase the cost of new systems by 30-50 ...

The Transportation Department is stepping up enforcement of persistent flight delays with a lawsuit against Southwest ...

Enforcing environmental laws isn’t a job that makes people popular. But polls show that Americans generally want more ...

The creation of the list of five toxic air contaminants is the result of a years-long effort from environmentalists and ...

Because Trump would be unlikely to approve them, California has no choice but to abandon its groundbreaking rules for ...

During a board meeting Monday, the airport authority moved forward with rescinding the lease of Modern Aero, a flight ...