This report summarises the results of the application of the new PAS 2070 British Standard: ‘Specification for the assessment of greenhouse gas emissions of a city’ to London. It explains the methodology London has used to apply the PAS 2070 to understand its indirect carbon emissions, as well as an indication of London’s consumption-based greenhouse gas emissions in 2010.
The London case study provides two methodologies for measuring a city’s wider greenhouse gas emissions:
- The Direct Plus Supply Chain (DPSC) methodology includes all greenhouse gas emissions that occur within a city’s geographic boundary, as well as the supply chains associated with the city’s major products and services including waste and waste water, construction, food and transport.
- The Consumption Based methodology measures the greenhouse gas emissions from the products and services that London consumes. Therefore greenhouse gases emitted as a result of products and services that are produced in London, but not consumed in London, are not included.