Water Supply

• how much of the world's water is saltwater


  97%
• how much of the world's water is freshwater?

  3%
• how much of the world's water is locked in glaciers?

  2.1%
• how much of the world's water is groundwater?

  0.99%
• how much of the world's water is lakes and rivers?

  0.01%
• what does population increase and economic development lead to for water supply

  leads to an increased demand for water
• why has water demand increased? - standard of living

  rising standard of living leads to the need for more water infrastructure
• why has water demand increased? - agriculture

  agricultural production increases the demand for water
• why has water demand increased? - machines


  industrialisation - factories require water
• water consumption in Advanced Countries

  water consumption is high in AC's
• water consumption in Low Income Developing Countries

  water consumption is low in LIDCs
• Where in the world can we find water deficit areas?

  Water deficit areas in Africa
• How is water transported?

  Water is transported to deficit areas by long distance pipelines, motor vehicles and tanker ships
• What environmental problem can affect water supply?

  Climate change can limit water supply