Conventional wisdom says switching to natural gas is why CO2 fell last year, but a recent analysis found a different explanation.
Jul 30, 2013
Aggressive energy efficiency efforts by households, companies and motorists led to the decline in carbon dioxide emissions from energy use in the United States,according to a recent report. The controversial finding contradicts recent studies that say the power sector's shift away from coal to cheap natural gas caused the bulk of reductions.
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