Quote:
Originally Posted by Oil Man
A jumbo jet can burn over 40000 gallons of Jet A on a single flight. Raw, uncatalyzed exhaust gas. On a busy travel day, there may be over 12000 jet aircraft in flight at any given time. Do the math from there.
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Not exactly, although one of the chief concerns is nitrous oxides as a byproduct of combustion, turbine engine development is highly focused towards efficient combustion that removes as many particulates and emissions. You'd have more of a point if you were talking about old inefficient turbojet engines, but modern turbofan engines are quite a different thing, incredibly efficient and not putting out nearly as many raw chemicals as say a diesel truck.