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Related Flashcards
Cards In This Set
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__% of the world's population use __% of the world's energy sources
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20, 60
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Energy density
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Amount of energy contained in a given volume or mass of an energy source
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Energy efficiency
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A measure of the fraction of energy used relative to the total energy available in a given source
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US Energy Policy Objective 1
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Increase Energy Efficiency and Conservation
Ex. Decrease speed limit to conserve fuel, Eliminate government subsidies |
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US Energy Policy Objective 2
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Secure Future Fossil Fuel Energy Supplies
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US Energy Policy Objective 3
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Develop Alternative Energy Sources
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US Energy Policy Objective 4
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Meet the first 3 objectives without further damage to the environment
Ex. 5 cent tax on ea barrel of domestically produced oil or ton of domestically produced coal to establish a reclamation fund for some of the environmental damage caused by drilling or mining, production, and refining |
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Fossil Fuels
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Combustible deposits in the earth's crust
composed of the remnants (fossils) of prehistoric organisms that existed millions of years ago coal, oil (petroleum), natural gas |
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Non-renewable resource
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Fossil fuels are created too slowly to replace the reserves we use
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How were fossil fuels formed?
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300 million y/a - climate was mild, vast swamps covered much of the land, dead plant material decayed slowly
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How was coal formed?
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Heat, pressure and time turned the plant material into carbon-rich rock (coal)
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How was oil formed?
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Sediment deposited over microscopic plants
Heat pressure and time turned them into hydrocarbon |
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How was natural gas formed?
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Formed the same way as oil, but at temperatures higher than 100 degrees C
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Have most/all coal deposits been identified?
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Yes
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Which is the best coal?
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Anthracite
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