Other way around.
If the temperature increases (because of other greenhouse gases) then the amount of water in the atmosphere will increase. THE SEAS WILL BOIL.

Howd up a sec ...

environment.newscientist.com/channel/earth/climate-change/dn11652

edit: that's definitely not semantics ... it's an effect of global warning, not a cause. That's a pretty clear and important distinction. The steam that comes from hydrogen fuel cells is not a contributer to global warning, which is what the myth asserts.
( Dr. Shambolic je suis charlie, Wed 27 Aug 2008, 9:55, archived)

have you chaps heard of the seawater greenhouse?
it made for interesting reading
www.seawatergreenhouse.com/
(Dangermouse., Wed 27 Aug 2008, 9:58, archived)

If that works, that would be quite cool.

( Dr. Shambolic je suis charlie, Wed 27 Aug 2008, 10:01, archived)

Oooh.

( Newington, Wed 27 Aug 2008, 10:04, archived)

Shit, that's so obvious
why didn't I think of that? innovative cunts.

I'll just stick my grump in by pointing out that they are re-introducing seawater into the sea at a much higher salinity, so any major exploitation of the technology would render areas of the sea biologically dead on a localised basis ;)
( the mighty badger Aphrodite, on a bar stool, by your side, Wed 27 Aug 2008, 10:09, archived)

Do they have to put the runoff back into the sea?

( Newington, Wed 27 Aug 2008, 10:11, archived)

not strictly, I suppose
but what else are you going to do with it, particularly if it's exploited on a large scale?
( the mighty badger Aphrodite, on a bar stool, by your side, Wed 27 Aug 2008, 10:12, archived)

Sell it to Glasgow to put on their fish suppers.

( Dr. Shambolic je suis charlie, Wed 27 Aug 2008, 10:14, archived)

genius.
the concept is complete. we've done it.
( the mighty badger Aphrodite, on a bar stool, by your side, Wed 27 Aug 2008, 10:29, archived)

Not loading right now ...
yeah, it's all about equilibrium. I'd still maintain that major water constant emissions would effect the atmosphere/surface equilibrium but I take your point about short life in the atmosphere. But since water vapour will rise with temp anyway, we're pretty much toast regardless.
( the mighty badger Aphrodite, on a bar stool, by your side, Wed 27 Aug 2008, 10:01, archived)

Really soggy toast.
Yurk.
( Dr. Shambolic je suis charlie, Wed 27 Aug 2008, 10:02, archived)