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Water Presentation
 

Water Presentation

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    Water Presentation Water Presentation Presentation Transcript

    • Barcelona forced to ship in due to drought. Middle Eastern wars not just over oil. Each Briton uses 4,645 litres a day New oil as world runs dry. Kenya's rivers empty to grow flowers for the EU.
    • Water usage
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    • Why is demand increasing?
    • Reasons for the rising demand
      • Rising global population – From 2.5bn to 6.2bn between 1950 & 2000. Yet water supplies per person decreased by 1/3 1970-90.
      • Economic development – which means industrial & domestic demand has grown.
      • Rising living standards – people use more water for showers, washing machines ……..
    • Reasons for the rising demand 2
      • Industrial development – The growth of manufacturing depends on water – steel & paper are major water users.
      • Tourism – Massive increase in LICs, but take huge share of water resources ( golf courses, swimming pools)
      • Agricultural demand – More people means more food. Area of irrigated land doubled in the twentieth century.
    • Reasons for the rising demand 3
      • Climate change – This will affect rainfall, evaporation & water availability. The dry areas of LICs will be hit hardest.
      • Energy – Consumption has increased with population growth & industrial development. LICs have vast untapped HEP resources. But storing water in reservoirs increases the amount of evaporation.
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