Under California’s mandate, 35% of new 2026 model cars sold in the state must be zero-emissions, ramping up to 68% in 2030 ...

Produced primarily by the burning of fossil fuels, ammonium nitrate is a substantial portion of particulate pollution, a ...

Republicans used a procedural tactic to counter Democratic accusations they were gutting the filibuster and lay the ...

At 8:26 a.m. on Friday, the NWS Phoenix AZ reported an air quality alert in effect until Sunday at noon. The alert is for ...

California Gov. Gavin Newsom and environmental groups condemned a resolution headed to President Donald Trump that, if signed, would block the state’s authority to set stricter air standards and phase ...

California has used federal waivers to help clean up its air quality for decades. The U.S. Senate will likely revoke that ...

The Republican-majority Senate voted to nullify California's landmark environmental rule that would've banned the sale of new ...

Amid a heat wave, some Southern California residents are expected to experience potentially dangerous air quality on Tuesday.

Air pollution levels considered ‘safe’ for farmworkers provide inadequate protection from health risks and injuries, a new ...

After the GOP-led House ignored rules to revoke the Golden State’s authority to implement the nation’s toughest vehicle ...

How Southern California Wildfires Impact Air Quality, Smoke Damage, and Insurance Coverage - The Southern California ...

There are 25 million more people living with bad air than last year's report showed, according to air quality data from the ...