Global Warming
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Global Warming

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Global Warming Global Warming Presentation Transcript

    • global warming
  • 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
  • the beginning… keeling curve v.1960 http://scrippsco2.ucsd.edu/home/index.php
  • keeling curve v.2007 http://scrippsco2.ucsd.edu/home/index.php
  • 50 years of international policy
  • 2007 UN Climate Change Conference Bali, Indonesia
    • Main Concerns
      • cutting emissions
      • forests
      • adaptation
      • technology transfer
      • timescales
  • 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
  • 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)