Turning Canada's tar sands into oil

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  • Turning Canada's tar sands into oil
    • Tar sands
      • naturally occurring mixtures of sand or clay and water
        • very dense form of petroleum and bitumen
    • locations
      • Canada
        • Northern Alberta
          • larger area than England
      • Venezuela
      • South America
    • demand
      • rapidly developing countries increasing global demand
        • china
      • OPECs setting higher oil prices for the west to boycott America
      • big companies invested because they have a large demand
        • Alberta reserves expected to produce 5 million barrels a day by 2030
      • peal oil in 2015
    • how is the oil extracted
      • mined by open cast mining
      • High pressure steam pumped into the ground to separate the bitumen from sand
      • extracted materials then crushed with water and the bitumen separated before it can be refined for use
    • costs
      • expensive
        • $15 per barrel instead of $2 from conventional crude oil
      • 'The Alberta Energy research institute
        • large source of green house gases
      • two tonnes of tar sands needed to produce one barrels of oil
        • large quantity of waste
      • large scale deforestation
        • 147000 square miles of forest
      • large quantity of water needed
        • reduced water security
      • pollutes 130km2 of lake with toxic waste
      • Mike hudema a green peace activist
        • 'its the greatest contributor ro climate change as it produces 100 million tonnes of greenhouse gases
    • Benefits
      • provides an alternative source to depleting sources of oil
      • by 2020 tar sands could meet 16% of north America's demand for oil
        • increase Canada's and usa's energy security
      • provide additional source of oil until renewable and cleaner sources are developed
      • vital to Canadian economy
        • 20% of total Canadian exports
      • 80% can be sourced with technologies that don't need to be mined and so have less surface impact


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