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 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 ...

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 ...

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 ...

When Congress passed the Clean Air Act in 1970, climate change wasn’t on anyone’s mind. Yet under an Obama-era decision known as the “Endangerment Finding,” the Environmental Protection Agency has ...

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 ...

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 ...

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 Environmental Protection Agency on Tuesday unveiled a proposal to rescind the landmark legal opinion that underpins virtually all of its regulations to curb climate change. The move would end EPA ...

The Clean Air Act’s outdated framework is hindering progress.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) ...