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 (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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

Environmental Protection Agency Administrator Lee Zeldin testifies before the House Committee on Energy and Commerce Subcommittee on Environment in the Rayburn House Office Building on May 20, 2025 in ...

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 ...

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 ...

The Clean Air Act’s outdated framework is hindering progress.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