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energyresources - EnergyResources Lecture15...

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Energy Resources Lecture 15
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There, and Back Again? Reliance on fossil fuels is a recent development Prior to mid 1800s, energy came from renewable sources primarily wood and water Industrial revolution spurred search for new sources coal became king Oil assumed importance with rising dependence on cars
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Historical Trends in US Fuel Mix, 1870-1995
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US Fuel Mix: Current and Projected
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Primary Energy and End Use
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Projection of US Energy Consumption
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Crude Oil Production and Consumption  Trends Depletion curves Price sensitivity
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Recent Energy Trends
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Relative Costs of Energy Sources (2005)
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Oil Important for transportation, heating, some electricity  generation (not in US) Very concentrated and transportable form of energy Refined into many products, not just gas: plastics, fertilizers, pesticides, asphalt, tar Significant impacts of extraction and use environmental, political, economic
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World Oil Reserves (International Source Regions for Oil)
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Oil Imports from Saudi Arabia (1970-2006)
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In 2009, we imported  51% of the oil we used Canada (23.3%) Venezuela (10.7%)  Saudi Arabia (10.4%) Mexico (9.2%)  Nigeria (8.3%
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Active Oil and Gas Wells (Gulf of Mexico)
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Tar Sands, Alberta (Canada) Large amount of oil Expensive to extract
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Coal The fuel of the industrial revolution Primary use – electricity generation
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