This figure shows the emissions of carbon dioxide from the burning of fossil fuels in the generation of electric power. The three electricity-generating fuels shown here are coal, natural gas, petroleum and non-biomass waste. Emissions have declined since 2007 mostly due to the global recession. (Friedlingstein, 2010)
Source: EIA (2011)
Links:
[1] http://www.pewclimate.org/docUploads/facts-figures-us-emissions-electric-power.jpg