Carbon Dioxide - Research Article from Pollution A to Z

This encyclopedia article consists of approximately 2 pages of information about Carbon Dioxide.
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Carbon dioxide (CO2) is a nontoxic, odorless, and colorless gas present in trace concentrations in the atmosphere. The molecule is linear with a central carbon atom doubly bonded to two oxygen atoms (O=C=O). Natural sources of CO2 include volcanic outgassing, animal respiration, biomass decay, and oceanic evaporation. Removal processes include photosynthesis and dissolution into the oceans.

CO2 is a long-lived gas, with an atmospheric lifetime of more than one hundred years. It is a natural greenhouse gas and plays an important role in regulating Earth's climate. Like water vapor, CO2 traps outgoing infrared radiation emitted by Earth into space. By absorbing this energy, the atmosphere warms the earth, a process known as the natural greenhouse effect. Without carbon dioxide and water in the atmosphere, the earth's average surface temperature would be below 0°F, turning oceans into ice and dramatically altering life as it is...

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This section contains 588 words
(approx. 2 pages at 300 words per page)
Buy the Carbon Dioxide Encyclopedia Article
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Carbon Dioxide from Macmillan. Copyright © 2001-2006 by Macmillan Reference USA, an imprint of the Gale Group. All rights reserved.