1. 1 Chapter 18: Water Use and Management Water Resources Major Water Compartments Water Availability and Use Freshwater Shortages Increasing Water Supplies Water Management and Conservation

2. 2 Water Availability and Use Worldwide: 69% agriculture, 25% industry, 6% domestic Similar to Fig 17.12

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4. 4 4 Notice huge difference between low and high Income countries!!

5. 5 Freshwater Shortages 1 billion people without safe drinking water Groundwater sources being mined –Rivers dry up –Land subsides

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8. 8 Increasing Water Supplies Storing and moving water (Dams, etc.) – –Benefits Power generation Flood control –Drawbacks Decreasing somewhere? Environmental costs

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10. 10 Similar to Fig. 17.15

11. 11 Similar to Fig. 17.13

12. 12 Water Management and Conservation Conservation Equivalent to New Supply!! –Every gallon saved is equivalent to a new gallon supplied –Example from movie? What is the best way to get people to conserve water? –Price at true value cost Cost of supply –Cost of US water should double to ensure supply for growing population Scarcity value

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14. 14 Movie: Cadillac Desert, Last Oasis (on reserve in library) America’s big dams – everybody wants them –INDIA Namadar River –CHINA Three Gorges Dam Freshwater sources for large populations in dry areas Conservation? –MEXICO Mexico City, class inequities –MIDDLE EAST –AMERICAN WEST Critical Thinking Question: –Is there a shift in a country’s approach to water resources that accompanies the shift from developing to developed?

15. 15 Water flows across national borders!!

16. 16 Privatization of Water Water rights owned by private corporation instead of municipality –Promoted by World Bank –Isolated cases in USA Benefits? Drawbacks? –Read handout on privatizing water in Cochabomba, Bolivia

17. 17 The End. Back