"U.S. Carbon Emissions Fell Record 7 Percent in 2009: EIA"

"U.S. emissions of the main greenhouse gas from fossil fuels such as coal, oil, and natural gas fell a record 7 percent in 2009 due to the recession and more efficient use of fuels, the Energy Information Administration said on Wednesday."

Timothy Gardner and Tom Doggett report for Reuters May 5, 2010.