Is water vapor really a greenhouse gas?



  1. 0 Votes

    Yes, water vapor really is a greenhouse gas because it absorbs heat and emits radiation in the thermal infrared range. It is just as much a greenhouse gas as carbon dioxide and methane.

  2. 0 Votes

    Greenhouse gases are simply gases that emit radiation at the thermal infrared level.
    Yes, water is actually a very abundant greenhouse gas. Below is how much each gas contributes to the greenhouse affect:
    * water vapor, which contributes 36–72%
    * carbon dioxide, which contributes 9–26%
    * methane, which contributes 4–9%
    * ozone, which contributes 3–7%

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