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Unformatted text preview: -Carbon dioxide (CO 2 )-A trace gas-0.038% of atmosphere’s mass-Important to Earth’s energy balance-Added through biologic respiration, volcanic activity, decay, and natural and human-related combustion-Removed through photosynthesis-Increasing at a rate of 1.8 ppm/year-Ozone (O 3 )-Tri-atomic form of oxygen-Absorbs ultraviolet radiation-Chlorofluorocarbons (CFCs) destroy ozone-Destruction peaks over southern hemisphere-Antarctic circumpolar vortex limits latitudinal mixing-Leads to an ozone “hole”...
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This note was uploaded on 04/07/2008 for the course GEOG 1112 taught by Professor Frye during the Fall '08 term at UGA.
- Fall '08