How is water vapor a greenhouse gas?

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jsmith613
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How is water vapor a greenhouse gas?

Post by jsmith613 » Thu Aug 20, 2009 10:48 am

How is water vapor a greenhouse gas?

chemtopper
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Post by chemtopper » Mon Aug 31, 2009 1:02 pm

Any gas which can trap and store IR radiations can cause green house effect .Water vapors ,Carbon dioxide and methane can trap this heat and responsible for global warming.

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bobc2
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Re: How is water vapor a greenhouse gas?

Post by bobc2 » Sat Sep 05, 2009 1:49 am

How do these three gases rate in the order of effect on global warming (water, CO2, methane)?

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Post by Homeostasis » Fri Sep 11, 2009 4:23 am

co2 first because there is a LOT of it in the atmosphere because of cars and trains and fires etc.

then water vapor, because it's not toxic which would cause other reactions making things worse..

then methane because there is very little of it anywhere.

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Re: How is water vapor a greenhouse gas?

Post by bobc2 » Sat Sep 12, 2009 3:39 pm

What are the percentages of CO2, H2O and CH4 by weight? By numbers of molecules?

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Re: How is water vapor a greenhouse gas?

Post by bobc2 » Mon Sep 14, 2009 2:55 am

Found these percentages on Wickipedia (by weight). Looks like CO2 is small compared to water.

Nitrogen (N2) 78.084%
Oxygen (O2) 20.946%
Water (H2O) >1%
Argon (Ar) 0.934%
Carbon dioxide (CO2) 0.0383 %
Neon (Ne) 0.001818 %
Helium (He) 0.000524 %
Methane (CH4) 0.0001745 %
Krypton (Kr) 0.000114%
Hydrogen (H2) 0.000055 %

pushi
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Re: How is water vapor a greenhouse gas?

Post by pushi » Mon Sep 14, 2009 6:32 pm

water molecule is an hetero atomic molecule(H2O) so it absorbs heat radiation,infra red rays, SO WATER IS "SUPER GREEN HOUSE GAS"

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jwalin
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Post by jwalin » Sat Sep 19, 2009 3:58 am

even i thought that h20 was a better greenhouse gas than co2
it isn't what you do that matters but it is how you do it

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Sophyclese
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Re: How is water vapor a greenhouse gas?

Post by Sophyclese » Sun Sep 27, 2009 7:45 pm

Yes. Based on the information I have viewed here on this page, I can say that H2O is a super greenhouse gas. There is a large amount in the atmosphere for one and it can absorb the sun's rays. I might say the only gas more plentiful than water vapor is carbon dioxide, making water vapor come in second in global warming gasses.
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