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Ozone Depletion

Ozone Depletion. UV. O 3. 1% Decrease in Ozone  Greater than 1% Increase in UV Radiation. Ozone Depleting Gases CFC’s Halons/Bromides Carbon tetrachloride Methyl chloroform HCFC’s Etc. Greenhouse Warming. Solar E. Solar E. Solar E. Albedo (1/3). Solar E. Emissivity. Solar E.

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Ozone Depletion

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  1. Ozone Depletion

  2. UV O3 1% Decrease in Ozone  Greater than 1% Increase in UV Radiation

  3. Ozone Depleting Gases • CFC’s • Halons/Bromides • Carbon tetrachloride • Methyl chloroform • HCFC’s • Etc.

  4. Greenhouse Warming

  5. Solar E

  6. Solar E

  7. Solar E Albedo (1/3)

  8. Solar E Emissivity

  9. Solar E Albedo (1/3)

  10. Solar E Albedo

  11. Solar E Albedo (1/3)

  12. Solar E Albedo

  13. Solar E Emissivity

  14. Solar E Emissivity

  15. Solar E Emissivity

  16. Solar E Emissivity

  17. Greenhouse Gases • Water vapor • Carbon dioxide • Methane • Nitrous oxide • Ozone • CFC’s • Etc.

  18. Greenhouse vs. Solar Warming

  19. Carbon/Oxygen Cycle

  20. Concerns: • Food supply • Rising sea levels • Water supplies • Firestorms (positive feedback) • Methane venting (positive feedback) • Disruption of thermal conveyor • Ecological disruptions/extinctions • Past the tipping point?

  21. Tundra

  22. Going “Green” • Ethanol • Waste fuels • Solar • Wind • Tidal • Geothermal • Fuel cells • Nuclear • Etc.

  23. Pollution • Point source • Nonpoint source • Primary • Secondary

  24. Water pollutants • Oxygen demanding wastes • Plant nutrients • Pathogens • SOC’s • Inorganic minerals • Heat • Radioactive substances

  25. Industrial/East Coast Smog • Coal • Sulfur • Forms H2SO4 • Particulates

  26. Photochemical/WestCoast Smog • Gasoline • Nitrgen • Forms HNO3 • Ozone, PANS, Aldehydes, etc.

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