The Environmental Protection Agency threw out Colorado’s entire haze reduction plan, in what critics called ‘illegal’ and a ...

Among the many obstacles to enacting federal limits on climate pollution, none has been more daunting than the Supreme Court. That is where the Obama administration’s efforts to regulate power plant ...

David Good, program manager for air monitoring for the Allegheny County Health Department, says the department relies on lab-grade instruments to measure air quality. “We have to have very highly ...

California will go to court to protect its clean air in the face of illegal attacks by republicans in Congress, said California Governor Gavin Newsom today. Earlier today, the US Senate voted to ...