How is water vapor a greenhouse gas?

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    • #11695
      jsmith613
      Participant

      How is water vapor a greenhouse gas?

    • #92652
      chemtopper
      Participant

      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.

      – Link removed as it was considered advertising. BioTeam

    • #92699
      bobc2
      Participant

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

    • #92738
      Homeostasis
      Participant

      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.

    • #92774
      bobc2
      Participant

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

    • #92781
      bobc2
      Participant

      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 %

    • #92789
      pushi
      Participant

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

    • #92874
      jwalin
      Participant

      even i thought that h20 was a better greenhouse gas than co2

    • #93115
      Sophyclese
      Participant

      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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