City Limits

1
City Limits

• Finding Data and Producing Resource Flows
• Nicky Chambers
• Director
• Best Foot Forward

www.bestfootforward.com
2
City Limits - Objectives

• Quantify and catalogue resources consumed by
  Londoners and London
• Calculate the ecological footprint of Londoners
  and compare with other regions
• Estimate ecological sustainability
• Quantify ecological sustainability of a range of
  improvement scenarios
• Assess availability and quality of data required
  for this sort of analysis

3
Resource flow analysis

• 49 million tonnes materials (6.7 per
  capita)
• 13 million tonnes oil equivalent 41 million
  tonnes CO2
• 26 million tonnes waste
• 64 billion passenger-km 69 by car
• 866 billion litres of water

4
Data Issues

• Sources of data
• Variability by component
• Proxy data and modifiers
• Responsibility vs geographical
• Economic data the double counting demon
• Accuracy of the data
• National vs Euro data (Craig?)

5
Ecological footprint analysis

• Ecological Footprint of Londoners in 2000 was
• twice the size of the UK
• (49 million gha )
• 42 times biocapacity of London
• 1 gha 1 hectare of biologically productive
  space with world average productivity

6
Ecological footprint analysis
7
Sustainability assessments

• Ecological Footprint of Londoners was 6.63 gha
  per capita
• Global earthshare for 2000 was 2.18 gha per
  capita
• If every person in the world consumed resources
  at this rate we would need two extra planets.

8
Improvement scenarios

• By component
• Electricity use and source
• Household waste by production and destination
• Passenger transport by demand and mode
• Food transportation by distance and mode
• Water use by demand and source
• Business as Usual
• 10 year historical trend continues
• Evolutionary
• Effect of recently agreed policies and targets
• Revolutionary
• Interim targets for 2020 in order to reach
  ecological sustainability by 2050.

9
Improvement scenarios Waste
10
www.citylimitslondon.com

• Free downloadable copy of the report
• Data spreadsheets
• Interactive scenario model