Percents may not add to 100 due to rounding. Does not include International Bunker Fuels.
Key: GHG = greenhouse gas. Tg CO₂ Eq. = teragrams of carbon dioxide equivalent. A teragram = 1 million metric tons.
U.S. Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks, report tables available at https://www.epa.gov/ghgemissions/inventory-us-greenhouse-gas-emissions-and-sinks.
Last Updated: April 2018