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Freshwater uses and problems

This overview addresses the essential uses of freshwater across agriculture, industry, and household settings. Key agricultural practices are categorized by efficiency, ranging from furrow irrigation to hydroponics, with ratings for sustainability. Industries like electricity generation and paper refining reveal significant water demands, while households utilize water for various daily activities. The impact of water management techniques such as levees, dams, and aqueducts is explored, alongside potential solutions for water scarcity, including conservation methods and desalination.

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Freshwater uses and problems

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  1. Freshwater uses and problems

  2. In your groups… • Brain storm a list of at least 5 uses for water (Be specific) • Categorize your list into agriculture (*), industry(-) and household (___) uses.

  3. Uses • Agriculture: ** on your poster rate these from 1-4. 1 being most sustainable, 5 being less sustainable. 4. Furrow (65% efficent- oldest, easiest, cheapest) • 3. Flood: More disruptive but 80% efficent • 2. Spray irrigation: more expensive- 75-95% • 1. Drip: over 95% efficent (reduces weed growth • 1. Hydroponic: uses 95% less water (water can be reused) more expensive.

  4. Industry: generating electricity, cooling machinery, and refining metals and paper. ( use and return vs use and turn to steam) Housholds: toliets, bathing, laundry, cooking and drinking

  5. How do we alter Water? • Levees • Dikes • Dams • Aquaducts

  6. Solutions • http://www.youtube.com/watch?v=9pjGnsivx_g

  7. Solutions • Fish Ladders (For Dams) • Desalinization • Water Conservation(What can we do?) • Water OWNERSHIP??????

  8. That brings us to the Colorado River… • http://www.youtube.com/watch?v=M-YexDw9yz0

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