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

Various environmental groups allege the Indiana Department of Environmental Management issued an inadequate air permit ...

Elon Musk’s xAI gas turbines get official approval, even as civil rights groups prepare to sue over alleged Clean Air Act ...

The Southern Environmental Law Center on behalf of the NAACP filed a 60-day intent to sue notice against xAI for alleged Clean Air Act violations.

Louisiana Governor Jeff Landry signed into law late last month a bill defining “green energy” as “… any energy generated by ...

Sulfur dioxide is a toxic gas linked to respiratory problems, especially in children and older adults. But the EPA concluded ...

The company sought Clean Air Act permits for gas turbines powering the computer this winter — six months after they had begun ...

Civil society groups, including EcoWaste Coalition and Caritas Philippines, are calling on newly elected local officials to ...

Ameren also seeks to build its first large lithium-ion battery facility on the Jefferson County site of its former coal-fired ...

The U.S. Supreme Court declined ExxonMobil's appeal regarding a $14.25 million penalty against the company for environmental ...

With 7 of its ambitious rules for cars, trucks and trains repealed, California officials must find new ways to clean up the nation’s worst air quality. But officials face growing pushback about ...

Nevadans can expect to see energy bills rise, gasoline costs creep upward, an increase in health risks, job losses, a plunge ...