Re: CO2 and 747s

From:         lmnp1@eng.cam.ac.uk (L.M.N. Peiris)
Organization: Cambridge University Engineering Department, UK
Date:         02 Dec 94 02:48:59 
References:   1
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I cannot find any evidence regarding the emission of CO2 and 
hydrocarbons effecting the greenhouse effect. It is wrong to 
say that the effect is insignificant since the amount of fuel
burn by aircrafts have increased dramatically from the post
war years. The jet engines produce more CO2 than its counterparts
,the piston engines. Also the number of aircrafts operating 
throughout the world has increased. There is now a demand for 
high power engines to power the new commercial aircrafts. 
	One could say that the amount of CO2 emissions from
aircrafts are less than those produced by the global industries.
As far as industries are concerned aircrafts' contribution to the
greenhouse effect is insignificant. Also the aircrafts' mobility
means that their emissions are spread out throughout the earth's
atmosphere unlike from factories where the emissions are
concentrated locally.

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