Figure 8
U.S. Carbon Dioxide Emissions from Energy Use: 1980-99
Million metric tons of carbon

Note: One ton of carbon equals 3.667 tons of carbon dioxide gas. Electric utility emissions are spread across end-user sections.

Sources: U.S. Department of Energy (USDOE), Energy Information Administration (EIA), Emissions of Greenhouse Gases in the United States 1999, DOE/EIA-0573(99) (Washington, DC: October 2000), table 5; and US DOE, EIA, Annual Energy Review 1999, DOE/EIA-0384(99) (Washington, DC: July 2000), table 12.2.