I've seen it claimed that a single flight by a commercial aircraft creates as much carbon dioxide as driving a car for 3 months. But the 'plane might carry 200 people for 1000 miles. Most family cars never even achieve 200,000 passenger-miles, so that means that per passenger-mile the 'plane is far more carbon efficient than a car.
Add to that the fact that aircraft produce vapour trails which encourage the creation of clouds. These clouds in turn reflect heat back into space. Did you know that the day after 9/11 the temperature over the US rose by 1 degree C due to the lack of vapour trails!. So are aircraft as bad for the environment as is currently being claimed?
2006-08-08
00:51:05
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5 answers
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asked by
Gary B
2
in
Environment
For reference I have now looked up some figures. According to Wikipedia, a 747-400 uses 17 lites of fuel per kilometre. Assuming that it can carry almost 600 people, that works out at about 0.005 litres per passenger mile. By comparison a car which does 30 miles to the gallon appears to work out at aboout 0.02 litres per passenger mile if transporting 4 passengers. Please feel free to check my maths.
2006-08-09
07:12:20 ·
update #1