How do cities develop such huge eco-footprints?
London: where does it all come from? <ul><li>London depends on a global network of supply lines </li></ul><ul><li>81% of i...
London’s life support system <ul><li>How does London survive? </li></ul><ul><li>What is the carrying capacity of a place? ...
 
What do you think about London’s life support system? <ul><li>You have now thought about this from the point of view of a ...
Where does some of the recycling go? <ul><li>Where does the waste go? </li></ul><ul><li>Reported in September 2004: more t...
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R4 How Do Cities Develop Such Huge Eco Footprints

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R4 How Do Cities Develop Such Huge Eco Footprints

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

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