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False. A 65% full 737 produces 184 grams of CO2 per passenger mile. An 80% full 747 produces 162 gCO2/ per passenger mile. [1] A car produces between 390 and
by ecopoesis 13y ago
False.
A 65% full 737 produces 184 grams of CO2 per passenger mile. An 80% full 747 produces 162 gCO2/ per passenger mile. [1]
A car produces between 390 and 600 grams of CO2 per mile. [2]
So if your car is efficient, and you're carrying more then two people, you can barely beat the efficiency of 40+ year old aircraft.
[1] http://www.carbonindependent.org/sources_aviation.htm http://www.carbonindependent.org/sources_aviation.htm
[2] http://www.carbonindependent.org/sources_car.htm http://www.carbonindependent.org/sources_car.htm
- reportingsjr 13y agoI just want to point out that those car CO2 figures don't go to very high fuel efficiency rates. I have a prius c (high on the efficiency scale, I know) and I just calculated about 290 grams of CO2 per mile (about 50mpg). Still not amazing, but a good bit better than 390g CO2/mile. That's just for one passenger as well.
- ecopoesis 13y agoGood point. Of course, modern 787s and A380s are also far more fuel efficient then then '60s and 70s era aircraft. According to Wikipedia, the 787 is 20% more efficient then a 767
- zurn 13y agoPeople don't use cars to travel thousands of miles - especially as this topic was about speed of travel. So this per-mile statistic doesn't make flying any better as a form of travel. It's like comparing safety of moon rockets vs bicycling per mile of traveled. Secondly, the co2 injected directly into the upper atmosphere has ~3x the warming effect as co2 emissions released by cars. If we look at an hour of flying vs an hour of driving, the air traveler contributes 20-30x as much to global warming. Of course 1-2 passanger car travel is horrendously bad as well, especially if you do it daily...