After months of backlash over alleged pollution concerns, xAI has finally secured an air permit covering some of the methane ...

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

A new real-time monitoring system captures minute-by-minute changes in toxic metals resulting from traffic pollution.

With 7 of its ambitious rules for cars, trucks and trains repealed, California officials must find new ways to clean up the ...

This brief assesses the health and air pollution benefits of reducing the global marine fuel sulfur limit from 0.5% to 0.1%, ...

The most effective filters have what’s called high-efficiency particulate air certification. Better known as HEPA filters, ...

U.S. power sector emissions are already at their highest levels in three years, but will likely climb further during the peak ...

The U.S. has one of the world’s most advanced systems to monitor air pollutants. Can it keep up with a changing climate?

The eternal truth is that natural gas is green indeed, and hugely beneficial economically. We should never forget that the fracking/horizontal drilling revolution was the result of capitalism and ...

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

When air quality is ranked "unhealthy for vulnerable groups" it means PM 2.5 are at levels that can cause problems for people ...

Colorado’s utility companies have been planning for nearly two decades to shutter their coal-burning power plants and transition to cleaner alternatives.