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On the Road
In the United States, the transportation sector accounts for approximately one-third of greenhouse gas emissions and is the fastest-growing major source of greenhouse gases. Transportation emissions are related to the amount of carbon dioxide in the fuel and how much fuel is used. You can reduce greenhouse gas emissions from vehicles by: driving less, using a renewable fuel like E-85 (a blend of 85% renewable ethanol and 15% gasoline) and getting more miles out of each gallon of fuel (i.e., improving mileage by driving a hybrid or another type of fuel efficient car).
Between 1990 and 2003 greenhouse gas emissions from passenger vehicles increased by 19 percent; caused mainly by increased sales of light-duty vehicles (SUVs, minivans, etc.) and an increase in the number of miles Americans travel every year. From 1990 to 2004, Americans increased the number of miles driven annually by about 34%. Meanwhile, the fuel economy of new vehicles declined because of increasing sales of light duty trucks, which overtook sales of passenger cars in 2002.
To learn more about the fuel efficiency and greenhouse gas performance of the vehicle you own, or plan to own, visit www.fueleconomy.gov or www.epa.gov/greenvehicles. These sites are designed to help the public factor energy efficiency into car buying decisions. It also offers information on the connection between fuel economy, advanced technology and the environment.
For more information on actions you can take to reduce your emissions, explore the “What You Can Do” section of this Web site.