1 / 51

Ozone Depletion

Ozone depletion results in a decrease of over 1% in Ozone (O3), leading to a significant rise in UV radiation exposure. Key ozone-depleting substances include CFCs, halons, carbon tetrachloride, and HCFCs. This exacerbates greenhouse warming, influenced by factors such as water vapor, carbon dioxide, and methane. Concerns include food supply threats, rising sea levels, and negative ecological impacts like extinction. As the earth approaches critical tipping points, renewable energy sources such as solar, wind, and nuclear are explored as potential solutions.

qabil
Télécharger la présentation

Ozone Depletion

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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.

More Related