Air regulators sue SoCal Gas over months-long well leak

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LOS ANGELES (AP) – Regional air regulators sued the Southern California Gas Co. on Tuesday, seeking penalties that could surpass $25 million for a monthslong natural gas leak that is blamed for sickening neighbors and has prompted a mass evacuation of a San Fernando Valley neighborhood.


Interactive: The most polluted states in America

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Nebraska is on the list of most polluted states in America. See how it stacks up with those even more polluted and what the statistics show about pollution here. Using data from the Centers for Disease Control and Prevention, HealthGrove analyzed average daily fine particulate matter (ug/m3) from 2003 to 2011.

Global mercury emissions down 30 percent as coal use drops: USGS

WASHINGTON Global emissions of mercury from manmade sources fell 30 percent from 1990 to 2010, in part from decreasing use of coal, the U.S. Geological Survey (USGS) reported on Wednesday. The greatest decline of the toxic pollutant was in Europe and North America, offsetting increases in Asia, the agency said, citing an international study.

Gas Company Understated Benzene Exposure From California Leak

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The company that owns the leaking natural gas well in Los Angeles understated the number of air samples showing higher-than-usual levels of benzene, The Associated Press reports. Adding to concerns over the disaster, efforts to stop the leak appear to have destabilized the well, the Los Angeles Times reports, raising the risk of a blowout.

These NASA innovations could cut carbon emissions and save airlines billions

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NASA research aimed at cutting fuel consumption, pollution and noise from airplanes could pay off for the nation’s airlines to the tune of more than $250 billion dollars, the agency said this week. Green technologies developed by the research project are expected to save billions of gallons of fuel if implemented, cutting carbon emissions and reducing air pollution in the process.

The Dirty Truth About ‘Clean Diesel’

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MONTREAL – AS scandals go, it was a juicy one. Volkswagen, one of the world’s highest grossing automakers, persuaded consumers it had created a new generation of so-called clean diesel cars – until investigators discovered that defeat devices, which activated emissions controls only when the cars were tested, were concealing the fact that its vehicles emitted up to 40 times the permitted levels of pollutants during regular use.


Canada is selling its clean air to China

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The air in China’s major cities, as has been well documented, is atrocious. Last month, the smog choking parts of the country was so thick that the situation got widely described as having reached ” doomsday” levels.