Location USA USA

Carbon Dioxide Emissions From Aircraft Increase

Aircraft are a rapidly growing emissions source within the transportation sector, which is second only to the power sector as a source of U.S. carbon dioxide emissions. In 2013, aircraft were responsible for about 3 percent of total U.S. carbon dioxide emissions and nearly 9 percent of carbon dioxide emissions from the U.S. transportation sector. Commercial air travel accounted for most of the aircraft carbon dioxide emissions, with military and general aviation making up the rest.

From 1990 to 2013, U.S. carbon dioxide emissions from domestic commercial flights grew 4 percent. Recent studies estimate that U.S. aircraft emissions will increase substantially in the next 20 years. Moreover, airplanes remain the single largest source of carbon dioxide emissions within the U.S. transportation sector that is not yet subject to greenhouse gas regulations.

U.S. aviation is part of the increasingly interconnected global aviation sector, which makes up about 2 percent of global carbon dioxide emissions but is one of the fastest growing sources. From 1990 to 2010, global aircraft carbon dioxide emissions grew about 40 percent. If global aviation were a country, it would rank as the seventh largest carbon dioxide emitter, and U.S. aircraft emissions are 29 percent of all global aircraft emissions. Absent new policies, global aircraft emissions are projected to triple by 2050.

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The transportation sector is responsible for more than one-third of U.S. carbon dioxide emissions. Aircraft are responsible for nearly 9 percent of U.S. transportation sector carbon dioxide emissions.

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