Cards (6)

  • the UK energy mix:
    1. traditionally we relied on fossil fuels - 91% were coal and oil
    2. gas reserves were found under the north sea making 22% of our energy supplied by gas
    3. we now use renewable energy sources and all coal-fired power stations are due to close by 2025
  • wind and bioenergy (energy from breaking down biological matter) are the biggest sources of renewable energy
  • coal production has significantly decreased since mid-20th century - less demand due to efforts to reduce CO2 emissions
  • the use of shale gas is being considered a way of adding to resources - it is extracted by fracking
  • economic issues with extracting fossil fuels/production of electricity:
    • can be expensive
    • north sea oil is expensive to produce
    • cost to the consumer of nuclear/renewable energy is expensive
    • money needed for research is high
  • environmental issues with extracting fossil fuels/production of electricity:
    • burning fossil fuels releases CO2 which is harmful
    • fracking may pollute groundwater and cause mini earthquakes
    • oil spills/nuclear disasters can leak chemicals into water sources
    • natural ecosystems can be damaged by renewable energy farms
    • power stations/wind farms are an eyesore