Natural Gas

  • Created by: Jo Peters
  • Created on: 19-03-19 13:10
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  • What is natural gas?
    • It is a hydrocarbon
    • Formed from the decomposition of living organisms
    • Found in sedimentary rocks
    • Shale gas is a type of natural gas extracted by fracking
    • Natural Gas
      • Extracting natural gas
        • Advantages
          • Cleanest of the fossil fuels
            • 45% less CO2 than other fossil fuels
            • Less toxic chemicals like NO and SO2
          • Less risk of environmental accidents like oil spills
          • Provides employment for 1.2 million people
          • Can be transported in a variety of ways
            • Pipeline
            • Tankers
            • Road tankers
          • Relatively abundant supply compared to other fossil fuels
            • Shale gas has increased supply
          • Power stations can be turned off and on - no waste
        • Disadvantages
          • Dangerous if handled or transported carelessly
          • Some supplies in politically unstable countries
            • Can be used as a weapon
            • Pipelines can be terrorist targets
          • Contributes to global warming - CO2 and methane
          • Fracking is controversial
          • Pipelines are expensive to build and maintain
      • Fracking
        • Advantages
          • Gas is cheaper
          • Produces less CO2 than coal fired power stations
          • Less reliance on foreign countries for energy
          • Increase use of fracking technology lead to 67% increase in employment
          • Using fracking gives us time to develop alternatives
        • Disadvantages
          • Harmful water pumped back into the ground water
          • Ecosystems harmed by poisonous chemicals
          • Harmful toxins like methane released
          • 72 trillion gallons of water used in fracking in the USA
          • 40,000 gallons of chemicals used per fracture
      • Extracting gas in the Amazon
        • Advantages
          • Could save Peru $4 billion in energy costs
          • Peru could make $billions by exporting gas
          • Provides employment opportunities and helps boost local economy
          • Improved infrastructure brings benefits to local people
        • Disadvantages
          • Deforestation associated with the pipeline will affect habitats
          • Impact on the indigenous tribes in the local area
          • Local people have no immunity to diseases brought in by developers
          • Clearing space for pipeline has led to landslides and water pollution
            • Reduction in fish stocks

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