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Transportation and Climate Change Clearinghouse


Driving Down GHG Emissions, Driving Up Fuel Efficiency

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US Greenhouse Gas Emissions & Transportation

  • The US is the world's second largest emitter of greenhouse gases
  • Emissions have grown more slowly since 2000.
  • Transportation accounts for about 28 percent of gross emissions.
  • Cars & light trucks account for almost 60 percent of transport emissions.

Table: Annual Growth Rates of Economic & Transport Indicators and U.S. Greenhouse Gas Emissions: 2000-2007 and 1990-2007

Graph: Emissions Indicators US Greenhouse Gas Emissions, 1990-2007

Figure: US Greenhouse Gas Emissions by Source, 2007