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Small Business and Entrepreneurship
Global Warming
Erosion and Weathering

How do planes affect global warming?

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Wiki User
March 08, 2012 12:12PM

Airplanes' effect on Global Warming

Airplanes emit a lot of carbon dioxide, the most significant greenhouse gas, into the atmosphere. Aircraft emissions accounts for about 3% of CO2 emissions. Experts predict that by 2050, aircraft emissions will account for over 5% of total warming.

There is evidence that indicates that airplanes do affect CO2 concentrations. Notably, there was a marked decrease in CO2 concentrations in the days succeeding 9/11, when airplanes were grounded.

Some airplanes emit lots of water vapor, another greenhouse gas, which can be seen sometimes as a contrail (condensation trail), a white streak behind the airplane.

They also drop aviation gas on waterways especially near airports.