Table 17. Transportation Sector Carbon Emissions by Fuel Type, 1997-2020
(Million Metric Tons)

Fuel Type 1997 2002 2005 2010 2020
Reference Case CCTI Case Reference Case CCTI Case Reference Case CCTI Case Reference Case CCTI Case
Petroleum 461.9 521.9 521.9 552.0 552.0 600.7 600.6 664.7 664.7
Natural Gas 10.5 12.8 12.8 14.7 14.7 16.7 16.7 19.5 19.5
Electricity 2.9 3.3 3.3 5.2 5.3 7.6 7.6 11.2 11.2
Other 0.0 0.5 0.5 0.9 0.9 1.3 1.3 1.9 1.9
Total 475.3 538.6 538.6 572.8 572.9 626.2 626.2 697.3 697.3
Source: Energy Information Administration, National Energy Modeling System runs AEO99TRN.D040699A and AEO99TRN. D040699B.