Difference between revisions of "Greenhouse gas"
m (fix ref)
|Line 12:||Line 12:|
Revision as of 16:32, 16 April 2008
A greenhouse gas is any gas which contributes to the greenhouse effect.
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.
- Water vapor has the largest greenhouse effect. (NASA)