2007-03-15 00:43:24 · 5 answers · asked by twjones1029 2 in Environment
Scientists say that more than five million airline flights a year are continuing to “significantly affect” the rare and fragile atmosphere through which they spew their exhausts. Equivalent in thickness to a sheet of paper draped over a beach ball, this life-giving zone of oxygen and radiation shielding is already being hammered by outmoded carbon-burning engines, woodstoves, cooking fires, and “smokestack” industries all ceaselessly belching toxic gasses at ground level. Though airlines carry only a fraction of the world’s population, Swiss atmospheric scientist Robert Egli calculates that jet-induced cloud cover and heat-trapping gases account for more than 10% of global greenhouse warming. [“Jets” by William Thomas Ecodecision 1995]
2007-03-17 22:38:36 · answer #1 · answered by Truman 1 · 0⤊ 0⤋
Best estimate is that aviation contributes about 3% of man made CO2 emissions. Now whether or not this has anything to do with global warming is another matter.
2007-03-17 18:30:50 · answer #2 · answered by Anonymous · 0⤊ 0⤋
NONE the CO2 that is produced is so heavy it falls like a rock.
2007-03-15 10:20:42 · answer #3 · answered by JOHNNIE B 7 · 0⤊ 0⤋
None.
2007-03-15 08:25:35 · answer #4 · answered by Spud55 5 · 0⤊ 0⤋
NONE.
2007-03-15 09:24:54 · answer #5 · answered by Anonymous · 0⤊ 0⤋