For California Assemblyman Ian Calderon, it was apparently the last straw.
Francisco has reached an ambitious goal to reduce greenhouse gases locally two years ahead of schedule.
A fifth consecutive Spare the Air alert has been issued by the Bay Area Air Quality Management District for Friday.
A federal judge announced a proposed settlement in which Volkswagen would repair or buy back 480,000 vehicles.
More than $90 million will be available in 2016 and 2017 for projects and programs to reduce air pollution in the Bay Area.
The Bay Area Air Quality Management District has strengthened its wood burning regulations, including prohibiting wood burning devices from being installed in new buildings.
The Bay Area Air Quality Management District has issued a Spare the Air Alert for Tuesday.
Nine Bay Area businesses will receive part of a $2.6 million grant to install cleaner engines and equipment, in an effort to reduce air emissions
An environmental nonprofit filed a lawsuit against the EPA, claiming it didn't do enough to protect endangered species.
Persistent stagnant weather forced the Bay Area Air Quality Management District to issue a ban on wood burning.
The Bay Area Air Quality Management District issued its first Winter Spare the Air alert for Sunday, which bans the burning of firewood either indoors or outdoors, a spokesman for the agency said Saturday.
Under a Winter Spare the Air…
The state Department of Toxic Substances Control has come under heavy fire this winter.
Clouds of pollution blanketed a Chinese city famed for its annual ice festival Monday, cutting visibility to about 30 feet.
Researchers predict a radically different climate on earth in about three decades at current emissions rates.
Smog is so bad in some of California’s national parks that visitor centers must warn would-be hikers.
Cesium-134 and 137 isotopes from Japan's Fukushima disaster have been detected in bluefish tuna caught near San DIego.
The "Great Pacific Garbage Patch" is about 100 times denser than when it was discovered in the 1970s.
The Bay Area is no longer listed in the top 25 worst polluted areas, but California still has a long way to go.
Nitrate groundwater contamination, which can be fatal, has spread across California's farming communities.