Difference between revisions of "Greenhouse gas"

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A '''greenhouse gas''' is any gas which contributes to the [[greenhouse effect]].  
 
A '''greenhouse gas''' is any gas which contributes to the [[greenhouse effect]].  
  
The most important greenhouse gas is [[water vapor]]. <ref>Water vapor has the largest greenhouse effect. [http://earthobservatory.nasa.gov/Library/glossary.php3?mode=all (NASA)] </ref>
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The most important greenhouse gas is [[water vapor]];<ref>Water vapor has the largest greenhouse effect. [http://earthobservatory.nasa.gov/Library/glossary.php3?mode=all (NASA)] </ref> see [[cloud cover]].
 
Also important are [[carbon dioxide]], [[methane]], [[nitrous oxide]], and [[ozone]].<ref>http://yosemite.epa.gov/oar/globalwarming.nsf/content/emissions.html</ref>
 
Also important are [[carbon dioxide]], [[methane]], [[nitrous oxide]], and [[ozone]].<ref>http://yosemite.epa.gov/oar/globalwarming.nsf/content/emissions.html</ref>
  

Revision as of 01:45, 10 July 2008

It has been suggested that this article or section be merged with greenhouse effect. (Discuss)

A greenhouse gas is any gas which contributes to the greenhouse effect.

The most important greenhouse gas is water vapor;[1] see cloud cover. Also important are carbon dioxide, methane, nitrous oxide, and ozone.[2]

The nature of a greenhouse gas is to pass visible light, i.e., incoming energy from the sun, but to be opaque to the infrared, i.e., heat energy being re-radiated outward from the earth's surface. This functions much like the glass on a man-made greenhouse, and serves to trap warmth at the surface and in the lower atmosphere.

References

  1. Water vapor has the largest greenhouse effect. (NASA)
  2. http://yosemite.epa.gov/oar/globalwarming.nsf/content/emissions.html