Air Pollution

The Four Corners area (red) is the major U.S. hot spot for methane emissions in this map showing how much emissions varied from average background concentrations from 2003-2009. Dark colors are lower than average; lighter colors are higher. (NASA)

Mysterious Sources Of Methane Viewed From Space Makes Central California 2nd Worst ‘Hot Spot’ In Nation

A small hot spot in California’s Central Valley is likely the second largest concentration of the greenhouse gas methane seen over the United States, according to a new study of satellite data.

10/09/2014

Smoggy Air

Sweltering Heat, Unhealthy Ozone Pollution Prompts Spare The Air Alert For Friday

The Bay Area Air Quality Management District issued a Spare The Air alert for Friday due to high temperatures and low winds and smoggy conditions.

10/02/2014

Blink electric car charger by Ecotality. (CBS)

Gov. Brown Signs Legislation To Boost Clean-Air Vehicle Use

Gov. Jerry Brown signed into law several bills designed to boost use of clean-air vehicles in California.

09/21/2014

Chevron refinery in Richmond. (Justin Sullivan/Getty Images)

Environmental Group Sues Bay Area Air Quality Agency Over Chevron Modernization Projecy

An environmental group is suing the agency that oversees air quality in the Bay Area after approving a $1 billion modernization expansion project at its Richmond refinery.

06/05/2014

Smoggy Air

4th Straight Spare-The-Air Alert Issued For Thursday

The fourth consecutive “Winter Spare the Air” alert has been issued for Thursday.

12/25/2013

Fires For Cooking Are Exempt From Bay Area Christmas Eve Wood Burning Ban (Cate Gillon/Getty Images)

What Are The Rules, Fines, And Exceptions To Christmas Eve Fireplace Wood Burning Ban?

With an unpopular “Spare the Air” advisory in place today banning all burning in fireplaces, outdoor fire pits and more, many Bay Area residents are looking for ways around the rules. Here they are.

12/24/2013

Smoggy Air

9th Straight Spare-The-Air Alert Issued

The Bay Area Air Quality Management District issued the alert — its 13th since the district’s Winter Spare the Air season began Nov. 1.

12/15/2013

(Jeff J Mitchell/Getty Images)

Bay Area’s 1st Spare-The-Air Alert Of Season Issued For Monday

The first Spare the Air alert of the winter season has been issued for Monday by the Bay Area Air Quality Management District.

11/24/2013

Rim Fire

Rim Fire Sends Dense Smoke Into Yosemite Valley

For the first time since a wildfire broke out around Yosemite National Park, dense smoke has begun to obscure the region’s majestic mountain views

09/01/2013

President Barack Obama speaks on climate change on June 25, 2013 at Georgetown University in Washington, DC. (Photo by MANDEL NGAN/AFP/Getty Images)

California Lawmakers Applaud As Obama Takes Aim At Climate Change

President Barack Obama declared the debate over climate change and its causes obsolete Tuesday as he announced a wide-ranging plan to tackle pollution and prepare communities for global warming.

06/25/2013

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