Today <ul><li>Quiz </li></ul><ul><li>Collect papers and give back graded ones </li></ul><ul><li>Go over EnvironNews Topics...
Fossil Fuels Chapter 11
Energy Use
Energy Consumption <ul><li>Energy consumption in the US </li></ul>
Fossil Fuels E4 fig. 10.3 Fossil Fuels are Non-Renewable
How Fossil Fuels Form <ul><li>formed by the effects of heat and pressure on non-decomposed organic matter over thousands o...
Environmental Impact of Coal  <ul><li>Coal is a mixture of C, N, H, O and S </li></ul><ul><li>The type of coal determines ...
Strip mining occurs on the land’s surface and causes unstable land
<ul><li>Both surface and subsurface mining allows previously trapped acids in soil to escape </li></ul><ul><li>Acid mixes ...
Environmental Impacts of Oil and Natural Gas <ul><li>Production </li></ul><ul><ul><li>Land disturbance </li></ul></ul><ul>...
Activity <ul><li>Watch  and discuss “The Story of Stuff” </li></ul>
Discussion <ul><li>Use the four objectives on pages 248 through 250 and discuss the pros and cons of each strategy </li></...
The U.S. Energy Strategy <ul><li>1.  Efficiency & conservation </li></ul><ul><ul><li>- Energy  highly subsidized : price a...
Nuclear Energy Chapter 12
Different Types of Nuclear Energy: Fusion <ul><li>Combining of the nuclei of atoms </li></ul><ul><li>This fuels the sun </...
Different Types of Nuclear Energy: Fission <ul><li>Most power plants use this </li></ul>
How it works
Discussion <ul><li>What are the pros and cons of nuclear energy? </li></ul>
Environmental Impact of Nuclear Energy  <ul><li>Possibility of meltdown </li></ul><ul><li>Radioactive waste </li></ul><ul>...
Renewable Energy and Conservation Chapter 13
Solar Energy <ul><li>Passive – heat builds up naturally </li></ul><ul><li>Active </li></ul><ul><ul><li>Solar thermal elect...
Wind Energy <ul><li>Wind is caused by uneven heating of the earth’s surface </li></ul><ul><li>Wind turns turbines which th...
Hydropower <ul><li>Most efficient </li></ul><ul><li>Potential energy of water behind dams is converted to kinetic energy w...
Geothermal Energy  <ul><li>Energy from within the earth that is trapped in hydrothermal reservoirs </li></ul><ul><li>Resea...
Biomass Energy <ul><li>Burned to release the energy within  </li></ul><ul><li>ex. Wood, plants, corn, animal waste </li></ul>
Activity  <ul><li>Watch John Stossal “Ethanol” </li></ul>
Costs
Answer the following on a separate piece of paper <ul><li>List 3 renewable resources and give a pro and con of each </li><...
Due Next Week <ul><li>Individual </li></ul><ul><li>Read Chapters 17, 20, 21, 22, and 25 </li></ul><ul><li>Value of Maintai...
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Week 3

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Week 3

  1. 1. Today <ul><li>Quiz </li></ul><ul><li>Collect papers and give back graded ones </li></ul><ul><li>Go over EnvironNews Topics </li></ul><ul><li>Planet earth – pole to pole (58 minutes) </li></ul><ul><li>BREAK </li></ul><ul><li>Resources PowerPoint </li></ul>
  2. 2. Fossil Fuels Chapter 11
  3. 3. Energy Use
  4. 4. Energy Consumption <ul><li>Energy consumption in the US </li></ul>
  5. 5. Fossil Fuels E4 fig. 10.3 Fossil Fuels are Non-Renewable
  6. 6. How Fossil Fuels Form <ul><li>formed by the effects of heat and pressure on non-decomposed organic matter over thousands of years </li></ul><ul><li>Includes: </li></ul><ul><ul><li>Coal </li></ul></ul><ul><ul><li>Natural gas </li></ul></ul><ul><ul><li>Petroleum </li></ul></ul>
  7. 7. Environmental Impact of Coal <ul><li>Coal is a mixture of C, N, H, O and S </li></ul><ul><li>The type of coal determines the proportions </li></ul><ul><li>When coal is burned, the elements get released into the air causing pollution, global warming and acid rain </li></ul><ul><li>Even the process of getting the coal can destroy the environment </li></ul>
  8. 8. Strip mining occurs on the land’s surface and causes unstable land
  9. 9. <ul><li>Both surface and subsurface mining allows previously trapped acids in soil to escape </li></ul><ul><li>Acid mixes with topsoil and drainage, runs into water table </li></ul><ul><li>In 1977, Surface Mining Control and Reclamation Act forced mines to correct the problem and limited areas where coal could be mined </li></ul>
  10. 10. Environmental Impacts of Oil and Natural Gas <ul><li>Production </li></ul><ul><ul><li>Land disturbance </li></ul></ul><ul><li>Transport </li></ul><ul><ul><li>Oil spills </li></ul></ul><ul><li>Combustion of oil </li></ul><ul><ul><li>Increased CO 2 emissions increases global warming </li></ul></ul><ul><ul><li>Acid deposition ( mostly N oxides) </li></ul></ul><ul><li>Combustion of natural gas </li></ul><ul><ul><li>Less CO 2 emissions but still not 100% clean </li></ul></ul><ul><ul><li>No Sulfur </li></ul></ul><ul><ul><li>Low particulate matter </li></ul></ul>(cleanest burning fossil fuel)
  11. 11. Activity <ul><li>Watch and discuss “The Story of Stuff” </li></ul>
  12. 12. Discussion <ul><li>Use the four objectives on pages 248 through 250 and discuss the pros and cons of each strategy </li></ul><ul><li>Use Worksheet Provided </li></ul>
  13. 13. The U.S. Energy Strategy <ul><li>1. Efficiency & conservation </li></ul><ul><ul><li>- Energy highly subsidized : price at pump ≠ true cost </li></ul></ul><ul><ul><li>- Rationale: lower prices stimulate economic growth </li></ul></ul><ul><ul><li>- Eliminate subsidies to force conservation </li></ul></ul><ul><li>2. Secure future fossil fuel energy supplies </li></ul><ul><li>- Domestic production as short-term solution </li></ul><ul><li>- World supply will run out </li></ul>3. Alternative energy sources - R&D for renewable sources: solar, wind - Funded by 50 cent tax per gasoline? 4. No further damage to the environment - Reclaim damage done by domestic production - Funded by tax on domestic oil?
  14. 14. Nuclear Energy Chapter 12
  15. 15. Different Types of Nuclear Energy: Fusion <ul><li>Combining of the nuclei of atoms </li></ul><ul><li>This fuels the sun </li></ul><ul><li>Alternative energy source </li></ul>
  16. 16. Different Types of Nuclear Energy: Fission <ul><li>Most power plants use this </li></ul>
  17. 17. How it works
  18. 18. Discussion <ul><li>What are the pros and cons of nuclear energy? </li></ul>
  19. 19. Environmental Impact of Nuclear Energy <ul><li>Possibility of meltdown </li></ul><ul><li>Radioactive waste </li></ul><ul><ul><li>Yucca Mountain and transport to it </li></ul></ul>
  20. 20. Renewable Energy and Conservation Chapter 13
  21. 21. Solar Energy <ul><li>Passive – heat builds up naturally </li></ul><ul><li>Active </li></ul><ul><ul><li>Solar thermal electric generation (uses mirrors to heat oil, then uses steam for power) </li></ul></ul><ul><ul><li>Photovoltaic cells (sun’s energy makes electricity directly – cannot be stored) </li></ul></ul><ul><ul><li>Solar generated hydrogen (can be stored) </li></ul></ul>
  22. 22. Wind Energy <ul><li>Wind is caused by uneven heating of the earth’s surface </li></ul><ul><li>Wind turns turbines which then generates electricity </li></ul>
  23. 23. Hydropower <ul><li>Most efficient </li></ul><ul><li>Potential energy of water behind dams is converted to kinetic energy when water is released </li></ul><ul><li>Water turns turbines which creates electricity </li></ul><ul><li>Most common is dams but there is also wave energy </li></ul>
  24. 24. Geothermal Energy <ul><li>Energy from within the earth that is trapped in hydrothermal reservoirs </li></ul><ul><li>Research is being done on how to extract energy from hot dry rocks </li></ul>
  25. 25. Biomass Energy <ul><li>Burned to release the energy within </li></ul><ul><li>ex. Wood, plants, corn, animal waste </li></ul>
  26. 26. Activity <ul><li>Watch John Stossal “Ethanol” </li></ul>
  27. 27. Costs
  28. 28. Answer the following on a separate piece of paper <ul><li>List 3 renewable resources and give a pro and con of each </li></ul><ul><li>List 3 non-renewable resources and give a pro and con of each </li></ul><ul><li>Do you think that there will be a move to renewable resources sometime within this century – why or why not </li></ul><ul><li>Why do you think we have not gone to renewable resources yet? </li></ul>
  29. 29. Due Next Week <ul><li>Individual </li></ul><ul><li>Read Chapters 17, 20, 21, 22, and 25 </li></ul><ul><li>Value of Maintaining Natural Ecosystems: Preservation vs. Conservation Paper </li></ul><ul><li>(instructions on page 11 of syllabus) </li></ul><ul><li>Team </li></ul><ul><li>Lifestyle and Sustainability Project Rough Draft </li></ul><ul><li>Critical Essay Discussions (environNews) </li></ul><ul><li>Resources pros and cons </li></ul>

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