Table 1 - U.S. Transportation-Related Carbon Dioxide Emissions
Monday, September 10, 2012
Table 1 - U.S. Transportation-Related Carbon Dioxide Emissions
(Teragrams of carbon dioxide equivalents)
| Vehicle type | 1990 | 1999 | Growth rate 1990-1999 |
|---|---|---|---|
| Passenger cars | 620 | 688.9 | 11% |
| Light-duty trucks | 283.1 | 364.8 | 29% |
| Other trucks | 206 | 269.7 | 31% |
| Buses | 10.7 | 12.9 | 21% |
| Aircraft1 | 176.7 | 184.6 | 4% |
| Boats and vessels | 59.4 | 65.6 | 10% |
| Locomotives | 28.4 | 35.1 | 24% |
| Other2 | 90.1 | 94.9 | 5% |
| Total | 1,474.40 | 1,716.50 | 16% |
| International Bunker Fuels3 | 114 | 107.3 | -6% |
1 Aircraft emissions are from all jet fuel (less bunker fuels) and aviation gas consumption.
2 "Other" carbon dioxide emissions are from motorcycles, construction equipment, agricultural machinery, pipelines, and lubricants.
3 U.S. emissions from International Bunker Fuels are from both civilian and military activities, but are not included in totals.
NOTE: The equation to convert teragrams of carbon dioxide equivalents (TgCO2Eq.) to million metric tons of carbon equivalent (mmtce) is: TgCO2Eq. = mmtce x (44/12).
SOURCE: U.S. Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-1999, EPA-236-R-01-001 (Washington, DC: April 2001), table ES-4.