Role of technology in solving future problems

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  • Role of technology in solving future problems
    • Technology can help increase both water supply and access, example:
      • Desalination- provides 70% of Saudi Arabia's water but it is the most expensive option for water supply due to its energy use
      • Towing flexible polypropylene bags will with freshwater has been propose e.g. Kielder to Essex
      • USA uses reverse osmosis membrane technology to filter salt from brackish water
    • In developing countries ore intermediate technology is more appropriate:
      • Water collection e.g. catching rain water or building small dams
      • Well built by NGOs e.g. Water Aid
      • Using plastic or glass bottles filled with contaminated water exposed to the sun for 6 hours destroys micro-organisms


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