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Drekkus
07-01-2010, 09:10:26
If global warming leads to higher temperatures, and warm air can contain more water vapour, does that (partially) even out rising water levels?

Funko
07-01-2010, 09:45:33
Yes. (Partially)

"warm air can contain more water vapour" is a bit simplification of what happens, although it's mainly true.

http://www.st-andrews.ac.uk/~dib2/climate/water.html

It's also potentially a mechanism by which we'll get more frequent extreme weather events.

Cheshire Cat
07-01-2010, 10:10:42
if I'm not mistaken, water vapor is a greenhouse gas thus it would also increase global warming, in a cyclic feedback
http://www.epa.gov/climatechange/kids/greenhouse.html
http://www.epa.gov/climatechange/effects/coastal/index.html

or would rather reflection from wider white cloudtops cut down irradiation

which effect would prevail?

http://en.wikipedia.org/wiki/Greenhouse_gas#Role_of_water_vapor

Funko
07-01-2010, 10:14:18
I think if it's condensed into clouds it's no longer technically water vapour in the air. In the same way that fog and rain aren't.

But yes, good point about the greenhouse affect of water vapour.

We'll all boil to death probably.

Cheshire Cat
07-01-2010, 10:18:12
http://rrgarchive.files.wordpress.com/2009/08/360_brochure_m_email-1.jpg

http://www.orientalcookbook.co.uk/images/steaming.jpg