With harsher rules in place, California has been able to address issues that the federal rules were not likely to tackle.

Two days of January wildfires in Southern California did not produce anywhere near as much CO2 as U.S. cars have emitted over ...

The waiver affects greenhouse gas emissions in vehicles manufactured ... possibility of having a non-compliant car in a dealership after 2013" because California will honor federal standards ...

"What were you thinking when you threw yourselves on the mercy of the Trump administration to solve your ... The California Air Resources Board finalized its rules for vehicle emissions through ...

A Jan. 11 Facebook post (direct link, archive link) shows a photo of fire burning through a neighborhood in the Pacific Palisades area of Los Angeles in early January. "Newsom's California fires ...