U.S. carbon dioxide (CO2) emissions resulting from energy use during the first quarter of 2012 were the lowest in two decades for any January-March period. Normally, CO2 emissions during the year are highest in the first quarter because of strong demand for heat produced by fossil fuels. However, CO2 emissions during January-March 2012 were low due to a combination of three factors:
- A mild winter that reduced household heating demand and therefore energy use
- A decline in coal-fired electricity generation, due largely to historically low natural gas prices
- Reduced gasoline demand
See full Press Release: h
ttp://www.eia.gov/todayinenergy/detail.cfm?id=7350
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