The lawyers who successfully won the law’s climate authority once thought of it as a placeholder for stronger legislation. Three presidents have used the Clean Air Act to curb planet-warming pollution ...

In the 1960s, the urban air pollution crisis in America had reached a fever pitch: Cities were shrouded in smog, union steelworkers were demanding protections for their health, and the Department of ...

During the early 1970s, the air in many American cities was … brown. Pollution muddied clear skies and sickened people across the country. The Clean Air Act helped change that. But the law's future is ...

The Clean Air Act’s outdated framework is hindering progress. New bills aim to modernize it with reforms aligned to today’s economic, environmental, and scientific realities. The Clean Air Act (CAA) ...

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 ...

Industry actors, Congress, and the EPA are teaming up to potentially make our air less breathable. Such was life in the United States before Congress passed the Clean Air Act (CAA) in 1970. Fifty-five ...

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 ...

In an unprecedented move, the administration has granted industrial facilities in 38 states and Puerto Rico a two-year reprieve from federal rules under the Clean Air Act. The president is considering ...

For more than five decades, the Clean Air Act has prevented millions of premature deaths, hospitalizations, and lost work and school days. By one official reckoning in 2011, the act’s limits on ...

EPA on Monday laid out a way for companies to avoid air pollution regulations for up to several years: Just send the agency a request via email. The agency posted guidance online that lays out a path ...

xAI continues to face backlash over its Memphis data center, as the NAACP joined groups today appealing the issuance of a recently granted permit that the groups say will allow xAI to introduce major ...

Thomas Jorling, adviser to Republicans who cosponsored the 1970 law, disputes the Trump administration’s claim that it shouldn’t apply to planet-warming greenhouse gases. Thomas Jorling with his dog, ...