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Our Water Resources

Our Water Resources. ENS102 3/10/2006. Review. How can we slow world population growth? Improving education - literacy health- reproductive, physical, mental, social family planning employment corporate investment in literacy in developing countries Family Planning counseling

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Our Water Resources

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  1. Our Water Resources ENS1023/10/2006

  2. Review • How can we slow world population growth? • Improving education - literacy • health- reproductive, physical, mental, social • family planning • employment • corporate investment in literacy in developing countries • Family Planning • counseling • pre and post natal care • Investing in Social Security • Economic Security (alleviate poverty) • more jobs (especially for women) • education for employment • Education on resource management • greenbelt movement • What is the current world population?

  3. Quiz • 1. What resource is “absolutely fundamental to life as we know it”. • 2. What % of the Earth’s water is useable freshwater?a. 0.77% b. 2.5% c. 30% d. 70% • 3. What is a rain shadow? • 4. The greatest consumer of water in society today is:a. households; b. industry; c. agriculture

  4. Water in the News? • Let's visit the library news database.

  5. Water - ecology & resource • De 8:7 For the LORD your God is bringing you into a good land, a land of brooks of water, of fountains and springs, flowing forth in valleys and hills, (>600) • Why did God create water? • What is the role of water in Creation? • The anthropic principle or “the functional integrity of Creation” principle

  6. What role does water play for organisms? • hydration • growth • cleaning • habitat • majority of body • cooling

  7. Water - ecology & resource • Most of every living organism is water. • ≈70% • Osmoregulation • Solvent • Specific heat • Organismic balance

  8. Water - ecology & resource • Most of the Earth is water. • 71% of the earth’s surface

  9. Water - ecology & resource • What roles does water play on Earth? • Take 5 minutes, use your text, and make a list of the roles • water cycle • irrigation • weather and climate • growth • energy • life sustaining

  10. Water - ecology & resource • What roles does water play on Earth?

  11. Water - ecology & resource • What roles does water play on Earth?

  12. Water - ecology & resource • What roles does water play on Earth?

  13. Water - ecology & resource • What roles does water play on Earth? • A temperature and climate regulator • High specific heat (1 cal/g) • High heat of freezing (80 cal/g) • High heat of vaporization (540 cal/g) • A weather machine in interaction with the sun. • Water keeps the earth livable.

  14. What role does water play for human society? • Take 5 minutes, use your text, and make a list of the roles

  15. Water - ecology & resource • What role does water play for humans? • Physiological water • 2.3 liters per day • Functional integrity of climate systems • 97.418 % • Living water • 100 gallons/person/day (8%) • Growing our food • 700 gallons/person/day • Technological water - 970 gallons/person/d

  16. Water - ecology & resource • What role does water play for humans? • personal water

  17. Water - ecology & resource • What role does water play for humans? • Technological water - 970 gallons/person/d

  18. Water - ecology & resource • What role does water play for humans? • 1770 gallons/person/day

  19. Water - ecology & resource • What role does water play for humans? • 1770 gallons/person/day

  20. Water - ecology & resource • The hydrological cycle

  21. Principles of sustainability as related to water • Ecosystems use sunlight as their main source of energy • Ecosystems are built upon interrelationships not independence • Ecosystems dispose of wastes and replenish nutrients by recycling • Ecosystems, regulatethe size of member populations • Ecosystems, maintain (bio)diversity

  22. For Monday • Continue reading Chapter 7 and we will examine the state of our water resources from MN to around the world

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