GREENHOUSEGAS

Greenhouse gas

A greenhouse gas is a gas in an atmosphere that absorbs and emits radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. The primary greenhouse gases in the Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide, and ozone. In the Solar System, the atmospheres of Venus, Mars, and Titan also contain gases that cause greenhouse effects. Greenhouse gases greatly affect the temperature of the Earth; without them, Earth's surface would average about 33 C° colder than the present average of .

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greenhouse gas

Noun

  1. any gas, such as carbon dioxide or CFCs that contribute to the greenhouse effect when released into the atmosphere
    Only two greenhouse gases get much attention.
    Termites and cows account for much greenhouse gas.


The above text is a snippet from Wiktionary: greenhouse gas
and as such is available under the Creative Commons Attribution/Share-Alike License.

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