| Apr 23, 2014
| 6:09 PM
Climate change and extreme weather could set back decades of improvement in California’s air quality, a new report by the state’s pollution control officers says.
A higher number of extreme heat days from global warming will boost smog...
| Apr 30, 2014
| 6:13 AM
WASHINGTON — The Supreme Court on Tuesday resurrected Environmental Protection Agency rules targeting air pollution that drifts across state borders, handing the Obama administration a victory on one of its major environmental efforts.
| Apr 30, 2014
| 12:45 PM
The American Lung Association's latest ranking for U.S. cities with the worst air pollution rates the Baltimore-Washington area ninth worst for ground-level ozone, exceeded only by smog-shrouded regions of California and Texas. No other community on the...
| Apr 29, 2014
| 8:06 PM
— The Supreme Court handed the Obama administration a significant victory on an environmental issue, with a 6-2 decision that upholds a regulation requiring Midwestern states with coal-fired power plants to reduce harmful emissions that drift to the...
| Apr 21, 2014
| 5:00 AM
Actor and eco-activist Ed Begley Jr.'s "aha" moment about the environment came during the first Earth Day in 1970. He heard the talk about air and water pollution, and it struck a chord.
He had personally experienced the effects of L.A.'s smog and...
| Apr 25, 2014
| 8:11 PM
A day after hearing hours of impassioned testimony from a divided trucking industry, California air quality regulators on Friday postponed deadlines for aging heavy-duty trucks to comply with the nation's toughest diesel air pollution rules.
| Apr 29, 2014
| 9:54 PM
Los Angeles has again topped a list of the cities with the worst smog in the nation, violating federal health standards for ozone an average of 122 days a year.
The annual air pollution rankings, being released Wednesday by the American Lung Assn., were...
| May 14, 2014
| 9:50 PM
The first permanent air quality monitor near a Southern California freeway has detected elevated pollution levels, a finding that will increase pressure on state and local officials to address health risks facing nearly 1 million people in the region...
| Apr 28, 2014
| 7:26 AM
Expect a very warm - okay, make that hot - week with lots of sun, not much rain.
South Florida's Monday forecast calls for mostly sunny skies with afternoon highs in the upper 80s and overnight readings in the low 70s.
Central Florida's forecast:...
| May 1, 2014
| 10:15 AM
Scientists have made a surprising discovery about ethanol: The more it was used by drivers in Sao Paulo, Brazil, the more ozone they measured in the local environment.
The finding, reported this week in Nature Geoscience, is contrary to other studies...
| May 7, 2014
| 7:13 PM
California recreation and air-quality officials have asked a court to sign off on a deal seeking to reduce the amount of dust that emanates from a stretch of sand dunes and blows into housing tracts atop a nearby mesa in San Luis Obispo County.