New research has led to the development of a global database of annual, population-weighted concentrations for PM2.5, NO₂ and ...

Mark DeSaulnier, a California Democrat, called the Republicans’ attempt to use the CRA to kill California’s waivers ...

When it comes to the Bay Area’s air quality report card, there’s little to smile about. The grades show failure across the ...

Before the EPA, the US environment was not federally protected. Vintage photos show Los Angeles before regulations limited ...

House moves to repeal the Golden State’s authority to set higher car and truck emission standards, which have long been ...

Kennedy, who has for years promoted the discredited claim that vaccines cause autism, didn't mention childhood shots when ...

Colorado has consistently failed to meet federal standards for ground-level ozone across the Front Range where 3.3 million ...

What’s the Hurry?  As I sat in the Fairley High School auditorium in south Memphis listening to hundreds of citizens of the ...

Before he joined Berkshire Hathaway, Greg Abel led a geothermal company with plants in California. Oh, how times have changed ...

From regulatory rollbacks to coal resurgence, here are some of Trump’s most consequential actions since January 20.

Renewable diesel is a biofuel made from vegetable oils and animal fats touted by proponents as an almost miraculous “drop-in” ...