Traffic backs up for miles on a Los Angeles freeway.
Photograph: Flickr
US CO2 emissions from energy decline 2.8% last year
High fuel prices and a weak economy led to the largest annual percentage decrease in US carbon dioxide (CO2) emissions from energy sources since at least 1990, according to data from the US Energy Information Administration (EIA).
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Forgot your password?Published: Thursday, May 21 2009 | Last updated: Friday, May 22 2009
