US electric power sector CO 2 emissions have declined 28% since 2005 because of slower electricity demand growth and changes in the mix of fuels used to generate electricity, according to the US Energy Information Administration (EIA). EIA calculated that CO 2 emissions from the electric power sector totaled 1,744 million metric tons (MMmt) in 2017, the lowest level since 1987. Source: US EIA, US Energy-Related Carbon Dioxide Emissions , 2017 In the United States, most of the changes in energy-related CO 2 emissions have been in the power sector. Since 2005, as power sector CO 2 emissions fell by 28%, CO 2 emissions from all other energy sectors fell by only 5%. Slower electricity demand growth and changes in the electricity generation mix have played nearly equal roles in reducing US power sector CO 2 emissions. US electricity demand has decreased in 6 of the past 10 years, […]