Energy and Matter: Natural Resources

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Energy and MatterNatural Resources

• SCI 7726

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What is a natural resource?
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Renewable/ Nonrenewable

• Questions from activities?

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I. Renewable resources

1. Capable of being regenerated
2. Must be used sustainably- they DO have limits
3. Vital natural resources?

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II. Resource management
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• B. example freshwater

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III. Nonrenewable resources fossil fuels

• Sources of energy

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• B. Where do fossil fuels come from?

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• C. Distribution of fossil fuels

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D. Need energy to get energy

• EROI- energy returned on investment
• EROI energy returned/ energy invested
• 40s 100 to 1
• 70s 301
• Now 5 1

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D. Coal
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E. Natural gas

• Mostly methane CH4
• Biogenic
• thermogenic

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F. Oil
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IV. Alternatives

1. Nuclear
2. Biomass
3. Hydroelectric
4. Solar
5. Wind
6. Geothermal