Quote:
Originally Posted by sounding
No gases hold heat - none - but greenhouse gases slow earth's cooling in proportion to the attached pie chart. Unlike CO2, water vapor is less uniformly distributed over the earth - such as over deserts.
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Funny, I remember that air is an insulator. For example, you put on a winter coat to create a WARM layer of air near your skin. Air can be warm or cold depending on its density. An aircraft can have icing on its wing tips because of the upper air holding less HEAT.