7-5 Transportation GHG Emissions by Mode: 2011 (Table)

Graphic Version | Excel

percent of TgCO2Eq.

Mode Percent
Highway 84
Air 8
Water 3
Rail 3
Pipeline 3

Key: GHG = greenhouse gas. TgCO2 Eq. = teragrams of carbon dioxide equivalent. A teragram = 1 million metric tons.

Note: Percents do not add to 100 due to rounding.

Source: U.S. Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2011, available at www.epa.gov/climatechange/ghgemissions/usinventoryreport.html as of August 2013.