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Chapter 14: Resource Issues
The Cultural Landscape: An Introduction to Human Geography
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Introduction Resource: substances in environment substances that are useful to humans Limited 2 resource misuses: Deplete scarce resources for energy Destroy resources by pollution
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Why Are Resources Being Depleted?
Energy resources Animate versus inanimate power Energy supply & demand 5/6 of world energy comes from coal, natural gas, &oil Figure 14-2
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Per Capita Energy Consumption
Figure 14-1
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Why Are Resources Being Depleted?
Energy resources Finiteness of natural resources Renewable versus nonrenewable resources Proven reserves Total supply known Potential reserves Undiscovered fields Enhanced recovery from known fields Unconventional sources Figure 14-3
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Coal Production Figure 14-4
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Proven Reserves of Fossil Fuels
Figure 14-5
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Why Are Resources Being Depleted?
Energy resources Uneven distribution of fossil fuels Location of reserves Consumption of fossil fuels
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Why Are Resources Being Depleted?
Energy resources Control of world petroleum Sharp conflicts OPEC (Organization of Petroleum Exporting Countries) Changing supply & demand
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Why Are Resources Being Depleted?
Mineral resources Metallic or nonmetallic Nonmetallic = 90 % of extraction is for building stone
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Why Are Resources Being Depleted?
Mineral resources Metallic or nonmetallic Ferrous metallic minerals = iron ore, chromium, manganese Nonferrous metallic minerals = aluminum, copper, zinc Precious metals = gold, silver, platinum
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Why Are Resources Being Polluted?
Air pollution Global scale Global warming Greenhouse effect Ozone layer & CFCs Figure 14-15
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Why Are Resources Being Polluted?
Air pollution Regional scale Acid precipitation & acid deposition Figure 14-18
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Why Are Resources Being Polluted?
Air pollution Local scale Carbon monoxide Hydrocarbons & photochemical smog Particulates Figure 14-19
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Why Are Resources Being Polluted?
Water pollution Nonpoint-source vs. point-source pollution Sources Agriculture Water-using industries Municipal uses
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Why Are Resources Being Polluted?
Water pollution Impact on aquatic life Biochemical oxygen demand Dead zone Thermal pollution Wastewater & disease U.S. Clean Water Act
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Why Are Resources Being Polluted?
Land pollution Solid-waste disposal Sanitary landfills Expanded landfill capacities 2 alternatives to landfills: incineration & recycling
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Why Are Resources Being Polluted?
Land pollution Hazardous waste disposal 2007: about 47 million tons disposed of in U.S. Heavy metals Pollution, cancer, death, etc.
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Why Are Resources Being Polluted?
Renewing resources Nuclear energy Potential accidents Radioactive wastes Bomb material Limited uranium reserves High cost Nuclear fusion
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Percentage of Electricity Generated from Nuclear Power
Figure 14-23
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Why Are Resources Being Reused?
Renewing resources Leading renewable energy resources Biomass Hydroelectric power Wind power Geothermal energy
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Electricity From Hydroelectric Power
Figure 14-26
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Why Are Resources Being Reused?
Renewing resources Leading renewable energy resources Solar energy 1% of U.S. energy Active Special devices collect solar energy & convert to power Passive No special devices to collect solar energy
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Why Are Resources Being Reused?
Renewing resources Leading renewable energy resources Renewable energy in motor vehicles
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Why Are Resources Being Reused?
Recycling resources Recycling collection Pick-up & processing programs Curbside Drop-off Buy-back Deposit Manufacturing of recycled products Paper Plastic Glass Aluminum Figure 14-30
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Why Are Resources Being Reused?
Recycling resources Other pollution reduction strategies Reduce discharges Increase environmental capacities Comparing pollution reduction strategies Consumers use/waste less for safer, cleaner environment
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Why Should Resources Be Conserved?
Figure 14-33 Why Should Resources Be Conserved? Sustainable development Improve quality of life while preserving resources for future generations Conservation Sustainable use & management of resources Preservation Maintenance of resources in their present condition Impact on economic growth Sustainability’s critics Figure 14-34
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Why Should Resources be Conserved?
Biodiversity Geographic vs. biological biodiversity Biologists: concerned with genetic diversity Geographers: concerned with biogeographic diversity Biodiversity in the tropics Occupy 6% of Earth’s land area but contain over 50% of all species
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The End. Thank you for taking Intro to Human Geography with me. I hope you enjoyed the class. Regardless of the specifics you take away from this class, remember geography & culture are all around you.
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