R4 How Do Cities Develop Such Huge Eco Footprints
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R4 How Do Cities Develop Such Huge Eco Footprints

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  • 1. How do cities develop such huge eco-footprints?
  • 2. London: where does it all come from?
    • London depends on a global network of supply lines
    • 81% of its food comes from outside the UK
    • 20% of London’s water comes from outside the area (water has to be transferred from Wales to supplement the Rivers Thames and Lea)
    • All of London’s energy sources are imported. The national grid transmits electricity from power stations across the UK
  • 3. London’s life support system
    • How does London survive?
    • What is the carrying capacity of a place?
    • The carrying capacity is the maximum number of people a place can support
    • London already exceeds its carrying capacity, as the previous facts have shown.
  • 4.  
  • 5. What do you think about London’s life support system?
    • You have now thought about this from the point of view of a resident, an economist, or an environmentalist.
    • But what do you think? This is how many major cities in the developed world operate, no wonder their eco-footprint is so large
  • 6. Where does some of the recycling go?
    • Where does the waste go?
    • Reported in September 2004: more than a third of the waste paper and plastic collected by British local authorities, supermarkets and businesses is being sent 8,000 mile to China
    • Did you know this? Does it surprise you?
    • What about the waste that we produce? Fill in the table in your book