News Main Animals Archaeology Dinosaurs Earth History Human Animal Space Tech   Getty Images |   Methane-Packed According to the latest estimate by the California Air Resources Board, human activity in the Los Angeles basin should only emit about 260,000 tons of methane each year. But after taking readings from August 2007 through June 2008, researchers found that the annual rate was much higher: some 600,000 tons. | Watch videos from Discovery News   « back to article

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