During the early 1970s, the air in many American cities was … brown. Pollution muddied clear skies and sickened people across ...

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 ...

A discussion of the Clean Air Act (CAA), its amendments, and significant caselaw pertaining to clean air regulation in the US ...

How much was known at the mid-20th century about the dangers of human-caused climate change? A lot more than most Americans ...

News about Clean Air Act, including commentary and archival articles published in The New York Times.

Since the Clean Air Act took effect, emissions of the most common pollutants have fallen by around 80%.

The party-line vote marked the first time in the 55-year history of the Clean Air Act that Congress has moved to weaken the power of the landmark environmental law.

Since the Clean Air Act took effect, emissions of the most common pollutants have fallen by around 80%. The law has saved millions of lives and trillions of dollars.

Justice & Health Memo to the Supreme Court: Clean Air Act Targeted CO2 as Climate Pollutant, Study Says The new paper digs into congressional archives to settle a legal debate, arguing that ...

Congress has voted to undo a Clean Air Act regulation that strictly controls the amount of toxic air pollutants emitted by many industrial facilities like oil refineries, chemical plants, and ...