LOS ANGELES (KABC) -- The Los Angeles metropolitan area has more seasons than winter, spring, summer and fall -- we have a fifth season of sorts that traditionally begins around this time of year: ...

Economic growth and car ownership are driving worsening air quality, with the problem magnified by Central Asia’s ...

In an about-face, the agency would instead approve five state "good neighbor" plans, thereby potentially skirting new pollution control requirements.

Sunny skies and sizzling temperatures are coming Sacramento’s way — but the summer weather also brings the dangers of smog looming across the capital region. The haze is more than a blemish on the ...

Gurgaon: The city has emerged as the \"biggest laggard\" where anti-smog guns are concerned. The city requires 787 anti-smog ...