Many power plants benefiting from exemptions rank among the nation’s worst polluters. The Trump administration says cheaper ...

The U.S. Senate voted early Thursday to prevent California from enforcing regulations on tailpipe emission from new cars and ...

Community groups are fighting an unusual Louisiana law that restricts how they use data from air-quality monitors, saying it ...

The suit calls the law an “industry-friendly ban” that bars groups from using their own independent air monitoring systems to ...

With the fate of EPA regulations uncertain, advocates say local environmental protection efforts, like a community air ...

The U.S. Senate on Thursday voted to block California’s first-in-the-nation regulations that would ban the sale of new ...

Lawmakers on Thursday have passed two resolutions to roll back the state’s vehicle emissions standards. They now head to the ...

Produced primarily by the burning of fossil fuels, ammonium nitrate is a substantial portion of particulate pollution, a ...

Scientists have found a way to sample DNA out of the air on a large scale — making it possible to one day track the health ...

Senate Republicans have voted to establish a new precedent that will allow them to roll back clean air standards in ...