1 / 19

Greenhouse Gases

Greenhouse Gases. 10.5 Chapter 19. Scales of Change. Sun-Earth Heating System. Sun  visible & UV radiation Earth Infrared radiation atmosphere. Greenhouse Gases. H 2 O CO 2 CH 4 N 2 O CFC’s What is their contribution to Global Warming?  Greenhouse warming potential

maili
Download Presentation

Greenhouse Gases

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. Greenhouse Gases 10.5 Chapter 19

  2. Scales of Change

  3. Sun-Earth Heating System • Sun visible & UV radiation • Earth Infrared radiation atmosphere

  4. Greenhouse Gases • H2O • CO2 • CH4 • N2O • CFC’s • What is their contribution to Global Warming? • Greenhouse warming potential • How much IR can it absorb? • How long does it persist in the atmosphere?

  5. CO2 in the One to Watch • What is the warming potential? • What is it’s concentration in the atmosphere? • CO2 concentration is so high (390 ppm)

  6. Mount Pinatubo, 1991 CO2 PM (SO2)

  7. Methane • Anaerobic decomposition (anoxic conditions) • Wetlands • Termites • Livestock

  8. N2O and H2O • Denitrification • Evapotranspiration

  9. Anthropogenic Sources of GG’s • Burning of Fossil Fuels • Agricultural Practices • DeforestationLandfills • Industrial Production of Greenhouse Chemicals (CFC’s & HCFC’s)

  10. PM and Global Warming- a Positive Feedback Mechanism • (Black) Soot Reflects light • Soot on Ice/snow

  11. Agricultural Practices • Rice Farming (CH4) • Fertilzers: excess nitrates denitrified (N2O) • Livestock (CH4) • Manure Lagoons (CH4)

  12. Really?

  13. Deforestation CO2 stored is released

  14. Landfills • Industrial production of Chemicals • CFC’s phased out so HCFC are good for ozone but are greenhouse gases

  15. Anthropogenic Sources

More Related