A new study finds evidence that Congress intended for the 1970 Clean Air Act to cover carbon dioxide emissions. The finding strengthens the legal case for regulating heat-trapping gases. Under former ...

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 ...

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 ...

The Clean Air Act (CAA) is now 55 years old—and shows its age. That's not a critique of its legacy. The law, in conjunction with innovation and private investment in environmental improvement, has ...

To judge by recent Supreme Court decisions, the world didn’t know much about climate change a half century ago. In 2007, when the court ruled that the Clean Air Act of 1970 gave the Environmental ...

Trump wants to roll back environmental protections at least to where they stood prior to the 1970 Clean Air Act. (Courtesy of the National Wildlife Federation) In March, Environmental Protection ...

Federal rules did not just clean up American air and save lives in the 1970s, they also rewrote what a Chevrolet Camaro could ...

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The Clean Air Act’s outdated framework is hindering progress.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