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

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<strong>Transportation's</strong> <strong>Role</strong> <strong>in</strong> Reduc<strong>in</strong>g U.S. <strong>Greenhouse</strong> <strong>Gas</strong> <strong>Emissions</strong>: Volume 1<br />

Figure 4.1 Impacts of Cap and Trade on GHG <strong>Emissions</strong> by Sector<br />

Source: U.S. Department of Energy, Energy Information Adm<strong>in</strong>istration (2009). Energy Market and<br />

Economic Impacts of H.R. 2454, the American Clean Energy and Security Act of 2009.<br />

http://www.eia.doe.gov/oiaf/servicerpt/hr2454/<strong>in</strong>dex.html.<br />

Note: The estimates for <strong>in</strong>dustrial, commercial, residential, and transportation do not <strong>in</strong>clude emissions<br />

from electricity as electricity emissions are counted under electric power.<br />

In the long run, as ris<strong>in</strong>g allowance prices <strong>in</strong>crease petroleum prices and cost<br />

effective solutions <strong>in</strong> other sectors have been exhausted, the impacts on the<br />

transportation sector are likely to <strong>in</strong>crease. Depend<strong>in</strong>g on the availability of<br />

<strong>in</strong>ternational offsets or lower-cost emission reductions <strong>in</strong> other sectors, it may be<br />

difficult if not impossible to achieve significant GHG reductions without GHG<br />

emission cuts <strong>in</strong> the transportation sector, s<strong>in</strong>ce as Section 2.0 shows, the sector<br />

accounts for 29 percent138 of U.S. GHG emissions.<br />

138 Includ<strong>in</strong>g bunker fuels, or 28 percent not <strong>in</strong>clud<strong>in</strong>g bunker fuels.<br />

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