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U.S. Carbon Emissions Increase from Last Year, but Still 28% Less Than in 2005

June 23, 2017

A newly released update to the Power Sector Carbon Index, developed by Carnegie Mellon University with the support of Mitsubishi Hitachi Power Systems (MHPS), found that U.S. power plant emissions averaged 955 lb of CO2 per MWh during the first three months of 2017.

Carbon emissions were slightly higher than during the same period last year, because coal-fired generation made up a greater portion of the power mix. Coal accounted for 292 million MWh in the first quarter this year, compared to 278 million MWh in the 2016 period. Natural gas–fired power generation declined about 16% year over year.

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