Transportation's Role in Reducing U.S. Greenhouse Gas Emissions ...

Transportation's Role in Reducing U.S. Greenhouse Gas Emissions: Volume 1
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Table 2.3 GHG Emission Projections By Mode (mmt CO2e)
2007 to 2030
2007 2030
Percent Change
2007-2030
2007 Share
by Mode
2030 Share
by Mode
Light-Duty Vehicles 1,221.4 1,080.9 -11.5% 56.7% 49.8%
Commercial Light Trucks 43.4 41.6 -4.3% 2.0% 1.9%
Bus Transportation 20.2 20.6 2.0% 0.9% 0.9%
Freight Trucks 374.9 449.7 20.0% 17.4% 20.7%
Rail, Passenger 6.6 8.2 24.7% 0.3% 0.4%
Rail, Freight 48.8 55.4 13.5% 2.3% 2.6%
Shipping, Domestic 28.3 32.7 15.7% 1.3% 1.5%
Shipping, International 78.0 79.9 2.5% 3.6% 3.7%
Recreational Boats 19.7 21.2 7.8% 0.9% 1.0%
Air 194.1 246.6 27.1% 9.0% 11.4%
Military Use 50.3 55.2 9.8% 2.3% 2.5%
Lubricants 5.2 5.6 7.5% 0.2% 0.3%
Pipeline Fuel 31.8 37.4 17.6% 1.5% 1.7%
Other 33.0 36.3 10.0% 1.5% 1.7%
Total Transportation 2,155.5 2,171.3 0.7%
Source: Historical emissions (1990 to 2006) from U.S. EPA (2008): U.S. Inventory of Greenhouse Gas
Emissions and Sinks: 1990 to 2006. Projected emissions (2007 to 2030) from Cambridge
Systematics analysis of Energy Information Administration, 2009: Annual Energy Outlook 2009
Updated April Release.