Asked in Small Business and EntrepreneurshipGlobal WarmingErosion and Weathering
How do planes affect global warming?
March 08, 2012 12:12PM
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.