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Global Warming

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  • Transcript

    • 1.
      • global warming
    • 2. greenhouse effect http://www.our-energy.com GHGs CO 2 carbon dioxide CH 4 methane N 2 O nitrous oxide PFCs perfluorocarbons HFCs hydrofluorocarbons SF 6 sulfur hexafluoride
    • 3. the beginning… keeling curve v.1960 http://scrippsco2.ucsd.edu/home/index.php
    • 4. keeling curve v.2007 http://scrippsco2.ucsd.edu/home/index.php
    • 5. 50 years of international policy
    • 6. 2007 UN Climate Change Conference Bali, Indonesia
      • Main Concerns
        • cutting emissions
        • forests
        • adaptation
        • technology transfer
        • timescales
    • 7. according to IPCCC (2007)
      • 20% to 90% increase in GHG (2000-2030) if current fossil fuel use is maintained
      • Warming & sea level rise will continue for centuries after GHG concentrations are stabilized
    • 8. states take charge
      • State inventories: 93%
      • State mitigation plans: 53%
      • State/city GHG emission targets: 30%
      • If US adopted CA vehicle & fuel programs, we would be 55% of the way to 1990 levels by 2020
      (Lutsey & Sperling 2008)

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