Four cities in Southern California are opposing an EPA processing site for "hazardous" waste from Los Angeles County's ...

President Donald Trump’s Environmental Protection Agency is considering rescinding California’s permission to tackle climate ...

The waiver allowed California to enforce its Advanced Clean Car program that requires auto makers to produce more ...

Toxic smoke and dangerous particulate pollution are spreading far beyond the flames, leaving air quality at unhealthy levels ...

President Donald Trump on Monday issued a memorandum directing the Secretary of Commerce and the Secretary of the Interior to develop a new ...