E&S:Lecture 16

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Author:
dante01
ID:
158144
Filename:
E&S:Lecture 16
Updated:
2012-06-11 02:20:00
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final
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  1. How much of our energy comes from buring fossil fuels?
    85%
  2. Inconvenient Truths
    • 1. Increasing Population
    • 2. Finite fossil fuel resources
    • 3. Increasing energy demand
    • 4.Rapidly increasing greenhouse gas levels
    • 5.Political tensions in oil-producing countries
  3. Examples of gradual decline
    • 1. Roman Empire
    • 2. Han Dynasty
  4. Examples of rapid collapse
    • 1. Mayan Civilization
    • 2. Easter Island Civilization
  5. Carbon Sequestration
    • Removal of carbon dioxide from the atmosphere by physical burial and subterranean gas injection
  6. Issues of Carbon Sequestration
    • 1. Danger of leaks (Tectonic processes, NIMBY)
    • 2. Cost (~ doubles cost of fossil fuels)
    • 3. Energy ( requires ~20% of energy produced)
  7. Geo Engineering options to cool climate
    • 1. Release aerosols
    • 2. Shade in space
    • 3. Atricficial trees to remove CO2
    • 4.Fertilize ocean with iron------more photsynthesis
  8. Cap and Trade
    • CO2 pollution credits can be bought and sold or traded
    • *Pollution credits ca not exceed cap
  9. Efficiency
    • 1. Doing the same or more using less resources.
    • 2. Efficiency tends to be more popular and cost-effective
  10. Energy porductivity can come from
    • 1.Reducing the amount of energy required to produce something
    • 2. Increasing the quantity orquality of goods and services from the same amount of energy.
  11. Key areas for improved Energy Efficiency
    • 1.Appliances and lighting
    • 2. Building designs
    • -insulation
    • -roof covering
    • -efficient heating and cooling systems
    • 3. Industrial
    • -reduce packaging
    • 4. Vehicles
    • -lighter weight vehicles save energy
  12. Efficiency rebound effect
    1. buying more efficient cars encourages more driving

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