WASHINGTON (AP) — Energy-related carbon dioxide pollution grew by 2 percent last year after declining several years in a row, a government report said Monday. The increase was largely due to a small boost in coal consumption by the electric power industry, according to the study by the U.S. Energy Information Administration.
American cars and factories spewed 5.38 billion tons of carbon dioxide in 2013, up from 5.27 billion in 2012, the report said. Carbon dioxide is the chief man-made global warming gas.
Coal, long the dominant source for U.S. electricity, has regained some market share in recent months as natural gas prices have increased following historic lows in 2012. Coal generated about 39 percent of the nation's electricity in October, compared with 28 percent for natural gas, the EIA said. Coal supplied about 37 percent of U.S. electricity in 2012, with natural gas at 30 percent.
Even with the uptick, overall U.S. carbon emissions remained 10 percent below 2005 levels, more than half the reduction needed to achieve President Barack Obama's goal of reducing carbon emissions by 17 percent from 2005 levels by 2020.
Obama has launched a major second-term drive to combat climate change, bypassing Congress as he imposes first-ever limits on carbon pollution from new and existing power plants.
Forty percent of U.S. carbon emissions, and one-third of greenhouse gases overall, come from electric power plants, according to the EIA.
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