Carbon Footprint from Energy Generation Drops in U.S.
U.S. carbon dioxide emissions generated from energy consumption and production fell 3.8 percent in 2012 to 5,290 million metric tons, reaching their lowest level since 1994, according to a report from the Energy Information Administration.
Annual energy-related emissions were 5,498 million metric tons in 2011, the EIA says in its report.
Energy intensity — the energy measured in Btu per dollar of GDP — fell by 5.1 percent, driving the decline in emissions even as the U.S. economy grew 2.8 in 2012. Half of the overall energy decline was from the residential sector, which needed less heating due to a warm first quarter of the year.
Typically, the first quarter of the year marks the high point for CO2 emissions.
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