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Transportation and Climate

Information on greenhouse gas (GHG) emissions from transportation sources and how those emissions affect our climate.

Did You Know?

EPA's finalized standards for 2017-2025 model year light-duty vehicles are projected to save approximately 2 billion metric tons of GHGs over the lifetimes of those vehicles. Learn more.

With a wide range of clean, fuel-efficient vehicles available today, it's easier than ever to go green—for the environment, and for your wallet. Visit fueleconomy.gov to find out more.

When shopping for a new car, scan the QR Code® on a vehicle's fuel economy & environment label to find additional information online, including personalized fuel cost estimates.

Leaving your car at home just two days a week can reduce your GHG emissions by over 3,000 pounds per year. Whenever possible, use public transit, carpool, or walk or bike.

A well-maintained car is more fuel-efficient, less polluting and safer! Get regular tune-ups, follow your vehicle's maintenance schedule, and use the recommended motor oil.

Under-inflation increases tire wear, reduces fuel economy and increases emissions. Find your vehicle's proper tire pressure on your glove compartment door or driver's-side door pillar.

There are millions of FFVs (flexible fuel vehicles) on the road today, which can run on either gasoline or E85 (85% ethanol). Learn more about E85 and find a station in your area.

Driving more efficiently (like going easy on the gas pedal and brakes) is often the most effective way to reduce your current vehicle's GHG emissions. Take a look at these tips for driving more efficiently.

Learn how to calculate your GHG emissions and make better transportation choices.

See what you can do to reduce emissions.

Find information on regulations related to GHG emissions from transportation.

Read the regulations and standards.

Find information on measuring GHG emissions from transportation, and the contribution of transportation sources to total GHG emissions.

Read more.

Explore approaches for reducing GHG emissions by using low GHG fuels, improving vehicle efficiency, reducing the number of miles that we travel, and operating vehicles more efficiently.

Learn more.

This page is maintained by EPA's Office of Transportation and Air Quality (OTAQ).
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