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Stonehill College Global Warming: Learn what it is. Learn what you can do. Cheryl Schnitzer

Stonehill College Global Warming: Learn what it is. Learn what you can do. Cheryl Schnitzer Associate Professor Department of Chemistry. Climate Change. Average Temperatures of Planets. 285F. 850 F. 45 F. –46 F. Mercury. Venus. Earth. Mars. Sun. Venus has a stronger

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Stonehill College Global Warming: Learn what it is. Learn what you can do. Cheryl Schnitzer

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  1. Stonehill College Global Warming: Learn what it is. Learn what you can do. Cheryl Schnitzer Associate Professor Department of Chemistry Climate Change

  2. Average Temperatures of Planets 285F 850F 45F –46F Mercury Venus Earth Mars Sun Venus has a stronger natural greenhouse effect than Earth http://www.kidsastronomy.com/venus.htm

  3. UV, VIS, and IR Light Come In, Only IR Goes Out

  4. The Greenhouse Effect 30% reflect back into space NaturalGHE: one blanket EnhancedGHE: pile on more blankets, accumulate GHGs Define Global warming! Sun shines GHGs trap heat in atmosphere 70% absorbed Heat released by Earth Earth’s surface warmed

  5. Which gases are good “blankets” to trap IR light?

  6. Not All Greenhouse Gases Are Created Equal

  7. Sources of Carbon Dioxide Combustion Reaction: Hydrocarbon + O2(g)  CO2 + H2O + Energy http://news.nationalgeographic.com/news/2007/08/070809-coal-arctic.html http://www.fotosearch.com/DGT072/cb025748/ http://www.epa.gov/climatechange/emissions/co2_human.html

  8. Carbon Dioxide in the Atmosphere Photosynthesis dominates during warmer part of year 6 CO2 + 6 H2O → C6H12O6 + 6 O2

  9. Reference: Blue Hill Meteorological Observatory http://www.bluehill.org/anntemp.gif

  10. Some Effects of Climate Change Droughts and wildfires more frequent http://www.climatecrisis.org/

  11. Predicted Shift in Wheat-Growing Region International Maize and Wheat Improvement Center

  12. Global Peak Oil Production: 2005 – 2015

  13. 2007 Toyota Prius Mileage: 60 mpg (city), 51 mpg (hway) Distance: 12,000 miles per year Fuel use: 216 gallons per year Emissions: 4,226 lbs CO2 per year Compare CO2 emissions for… http://www.terrapass.com/ 2007 Honda Odyssey Mileage: 18 mpg (city), 25 mpg (hway) Distance: 12,000 miles per year Fuel use: 558 gallons per year Emissions: 10,917 lbs CO2 per year

  14. Renewable Energy: Does Not Run Out or Pollute Sources of U.S. electric power 1997

  15. Climate Change in Context of Sustainability

  16. Find Your Place in a Sustainable Future Think Dennis the Menace Use compact fluorescent lights (60% less E) Plant trees (Vatican Climate Forest offset 2007) Reduce – Reuse – Recycle Use less hot water, less heat, less heat-drying http://www.blackle.com/

  17. “I believe that this nation should commit itself to achieving the goal, before this decade is out, of landing a man on the moon and returning him safely to the earth.”  President John F. Kennedy, May 25, 1961 Don’t Ask – DEMAND CHANGE “And I’m confident that America will fulfill the commitments that we have made: cutting our emissions in the range of 17 percent by 2020, and by more than 80 percent by 2050 in line with final legislation.”  President Barach Obama, December 18, 2009 (Copenhagen)

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