Re: Hydrogen no good

[bearbvd@domain.elided (Greg Hermann)]

>As far as the environment is concerned, water vapour is also an aggressive
>greenhouse gas which I believe is as potent as CO2.

Try 200 to 300 times as aggressive as CO2, Michael !!

 All those airplanes in
>the high atmosphere are probably contributing as much or more to global
>warming as ground level emissions, putting water vapour and CO2 into the
>upper atmosphere where it doesn't rain out, from their hydrocarbon fuels.

Note the 200 to 300 factor above. The water in con trails is a HUGE,
unadmitted problem, in fact it  likely constitutes MOST of the problem (if
there is one) !

Greg

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