Fueling the Clean Energy Economy: Solving Global Warming Pollution in the Transportation Sector

Policy Brief
February 19, 2009

For nearly 100 years, the United States has operated its transportation system with primarily one fuel: oil. As a result, the transportation sector is now the second largest source of U.S. global warming pollution, contributing 28 percent of all emissions. To solve global warming cost-effectively, we need a trio of policies to drive solutions in each of these areas: 1) an upstream cap on fuel emissions; 2) performance standards for clean, effi cient vehicles, clean fuels, and low-carbon transportation planning that we strengthen periodically; and 3) incentives to overcome market barriers to widespread adoption of low-carbon technologies, practices, and designs.