[Digestion] H2O as a GHG?

[Ken Calvert]

Frank,  I am responding to your comment below, that water vapour is a 
GreenHouse Gas?  You said   " I think it's silly to sequester CO2--but then 
again, I think the fundamental  cause of global warming are aviation 
emissions of H20 into the greenhouse
layer"
   Now as I understood the situation,  water vapour might block IR re 
radiation and heat the earth, but the moment that it condenses into clouds 
it does a complete flip and reflects the initial radiation coming in and is 
a potent antidote to our greenhouse anxieties.  Yes we do need to mimimise 
on the  GHG nasties, especially the synthetic ones, but when the world 
starts to get too hot, all we need to do is to  run a few Stratocruisers at 
sub-stratospheric heights and  dump off a few extra tonnes of water droplets 
to enhance our cloud cover and  we can ward off the dreaded whatevers.  I 
have read somewhere about ships that could spray enough spray/spume into the 
prevailing winds to make a serious impact on the GHG problem.

    This Group is to do with anaerobic digestion, and I have no wish to 
squew it off track.
What I am wondering however, is how much extra rainfall would we require to 
dissolve out a bit more CO2 and minimise on that too?  Rainwater is pH 5.7, 
because of the dissolved CO2  that ends up back in the soil water and 
dissolves surface limestones etc.   Can someone point me to a webpage or 
three that  discusses these matters?
Thanks a lot, Ken C.