Observe the experiment <ul><li>Which thermometer will be the hottest? </li></ul><ul><ul><li>How does this model the earth ...
The Greenhouse Effect
What causes the Greenhouse Effect?
“Greenhouse Gases” <ul><li>CO2 </li></ul><ul><li>H20 </li></ul><ul><li>CH4 (methane) </li></ul><ul><li>NO (nitrous oxide) ...
Climate Change Public Enemy #1:  CO2 <ul><li>What’s so bad about CO2?  </li></ul><ul><li>Important logical steps  </li></ul>
The Real Question: Is it our Fault? <ul><li>Are global temperatures increasing?  </li></ul><ul><li>Are global CO2 concentr...
<ul><li>The average temperature on earth has raised 25% since the early 1800s  </li></ul><ul><li>The average temperature h...
 
Global Climate is cyclical <ul><li>Global warming may not be purely  anthropogenic </li></ul>
Global T and CO2 <ul><li>Correlation vs causation </li></ul><ul><li>What makes this graph so convincing?  </li></ul>
The Real Question: Is it our Fault? <ul><li>Are global temperatures increasing? </li></ul><ul><ul><li>Yes- scientifically ...
How much of our atmopshere is CO2 anyway?  Are we worried about running out of oxygen?
What makes up the atmosphere? <ul><li>Mostly nitrogen </li></ul><ul><li>Next most is O2 (how did it get there?) </li></ul>...
Is the goal to  eliminate CO2 from our atmosphere entirely?
We  the Carbon Cycle <ul><li>We also  Homeostasis </li></ul>
Draw a graph of global CO2 concentration time CO2
Seasonal Changes
Changing compositions <ul><li>In 1850 CO2 concentration was 280 ppm and today (2004) it is 350 ppm  </li></ul><ul><li>Worl...
US & China Emissions
More retrospection <ul><li>How do we get this data anyway?  </li></ul>
Method: Ice Coring
The Real Question: Is it our Fault? <ul><li>Are global temperatures increasing? </li></ul><ul><ul><li>Yes- scientifically ...
Is the greenhouse effect bad?
Earth without the greenhouse effect?  <ul><li>Global temperatures = 1C </li></ul><ul><li>How would that change things?  </...
What happens if there are more of these greenhouse gases <ul><li>More sunlight bounces off of them back to the earth’s sur...
The Real Question: Is it our Fault? <ul><li>Are global temperatures increasing? </li></ul><ul><ul><li>Yes- scientifically ...
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Greenhouse09

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Greenhouse09

  1. 1. Observe the experiment <ul><li>Which thermometer will be the hottest? </li></ul><ul><ul><li>How does this model the earth </li></ul></ul><ul><ul><li>Lamp = </li></ul></ul><ul><ul><li>Beaker = </li></ul></ul><ul><ul><li>Black paper= </li></ul></ul><ul><ul><li>What’s going on here? </li></ul></ul>
  2. 2. The Greenhouse Effect
  3. 3. What causes the Greenhouse Effect?
  4. 4. “Greenhouse Gases” <ul><li>CO2 </li></ul><ul><li>H20 </li></ul><ul><li>CH4 (methane) </li></ul><ul><li>NO (nitrous oxide) </li></ul><ul><li>CFCs (chloroflourocarbons) </li></ul><ul><li>How do we contribute to the production of these gases? </li></ul>
  5. 5. Climate Change Public Enemy #1: CO2 <ul><li>What’s so bad about CO2? </li></ul><ul><li>Important logical steps </li></ul>
  6. 6. The Real Question: Is it our Fault? <ul><li>Are global temperatures increasing? </li></ul><ul><li>Are global CO2 concentrations increasing? </li></ul><ul><li>Does the greenhouse effect cause warming? </li></ul><ul><li>Does CO2 contribute to the greenhouse effect? </li></ul><ul><li>Are they measurable or testable ? </li></ul>
  7. 7. <ul><li>The average temperature on earth has raised 25% since the early 1800s </li></ul><ul><li>The average temperature has raised 10% since 1958 </li></ul><ul><li>The current rate of increase is .4% per year </li></ul>
  8. 9. Global Climate is cyclical <ul><li>Global warming may not be purely anthropogenic </li></ul>
  9. 10. Global T and CO2 <ul><li>Correlation vs causation </li></ul><ul><li>What makes this graph so convincing? </li></ul>
  10. 11. The Real Question: Is it our Fault? <ul><li>Are global temperatures increasing? </li></ul><ul><ul><li>Yes- scientifically measurable </li></ul></ul><ul><li>Are global CO2 concentrations increasing? </li></ul><ul><li>Does the greenhouse effect cause warming? </li></ul><ul><li>Does CO2 contribute to the greenhouse effect? </li></ul><ul><li>Are they measurable or testable ? </li></ul>
  11. 12. How much of our atmopshere is CO2 anyway? Are we worried about running out of oxygen?
  12. 13. What makes up the atmosphere? <ul><li>Mostly nitrogen </li></ul><ul><li>Next most is O2 (how did it get there?) </li></ul><ul><li>Noble gases, water vapor, CO2 </li></ul>
  13. 14. Is the goal to eliminate CO2 from our atmosphere entirely?
  14. 15. We the Carbon Cycle <ul><li>We also Homeostasis </li></ul>
  15. 16. Draw a graph of global CO2 concentration time CO2
  16. 17. Seasonal Changes
  17. 18. Changing compositions <ul><li>In 1850 CO2 concentration was 280 ppm and today (2004) it is 350 ppm </li></ul><ul><li>Worldwide- increases average 50% over their 1850 levels </li></ul><ul><li>To what, historically can we attribute this change? </li></ul>
  18. 19. US & China Emissions
  19. 20. More retrospection <ul><li>How do we get this data anyway? </li></ul>
  20. 21. Method: Ice Coring
  21. 22. The Real Question: Is it our Fault? <ul><li>Are global temperatures increasing? </li></ul><ul><ul><li>Yes- scientifically measurable </li></ul></ul><ul><li>Are global CO2 concentrations increasing? </li></ul><ul><ul><li>Yes- scientifically measurable </li></ul></ul><ul><li>Does the greenhouse effect cause warming? </li></ul><ul><li>Does CO2 contribute to the greenhouse effect? </li></ul><ul><li>Are they measurable or testable ? </li></ul>
  22. 23. Is the greenhouse effect bad?
  23. 24. Earth without the greenhouse effect? <ul><li>Global temperatures = 1C </li></ul><ul><li>How would that change things? </li></ul>
  24. 25. What happens if there are more of these greenhouse gases <ul><li>More sunlight bounces off of them back to the earth’s surface </li></ul>
  25. 26. The Real Question: Is it our Fault? <ul><li>Are global temperatures increasing? </li></ul><ul><ul><li>Yes- scientifically measurable </li></ul></ul><ul><li>Are global CO2 concentrations increasing? </li></ul><ul><ul><li>Yes- scientifically measurable </li></ul></ul><ul><li>Does the greenhouse effect cause warming? </li></ul><ul><ul><li>Yes- scientifically demonstrable? </li></ul></ul><ul><li>Does CO2 contribute to the greenhouse effect? </li></ul><ul><li>Are they measurable or testable ? </li></ul>

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