FIGURE 8-4 Transportation-Related Greenhouse Gas Emissions: 2011
Total = 1,834 Teragrams of CO2 Equvalient Units

SOURCE: U.S. Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks (Washington, DC: Annual Issues), table 2-15. Available at http://epa.gov/climatechange/emissions/usinventoryreport.html as of November 2013.