Environmental advocates are challenging the legality of the state’s decision to roll back tools Ohioans have used for decades to fight air pollution.

Eventual Environmental Protection Agency administrator Lee Zeldin testifies during a Senate confirmation hearing on January 16 and is accepting qualifying Clean Air Act exemption requests via email ...

On Wednesday, the Supreme Court will hear arguments on postponing the EPA’s "Good Neighbor” rule, a policy designed to address interstate pollution. The Clean Air Act requires that states that produce ...

The post Trump’s EPA Could Limit Its Own Ability to Use New Science to Strengthen Air Pollution Rules appeared first on ...

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 ...

The sky turns a rusty orange. The sun dims behind a thick veil of smoke. For millions of Americans, even ones far from wildfire-prone lands, this eerie scene is no longer rare. Extreme wildfires have ...

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 ...

The Clean Air Act, first enacted in 1963, is in many ways a wild success. Thanks to the landmark environmental law and its subsequent amendments, the six most common air pollutants fell by an average ...

Southeastern Wisconsin is facing stricter air quality regulations despite having its best air quality on record due to pollutants from neighboring states. The EPA's Clean Air Act designates parts of ...

The legislation is the source of scores of landmark regulations on air pollution. By Coral Davenport The Clean Air Act, which some legal experts call the most powerful environmental law in the world, ...

As the New Year celebrations draw to a close, life is returning to normal -- along with some all-too-familiar problems. Chief among them is PM2.5, the seasonal air pollution that predictably ...