BS PAS 2070:2013+A1:2014

BS PAS 2070:2013+A1:2014 specifies requirements for the assessment of greenhouse gas (GHG) emissions of a city or an urban area using two distinct methodologies. These recognize cities as both consumers and producers of goods and services, and provide a complementary insight of a city's GHG emissions. The GHG emissions assessment methodologies are:

• a direct plus supply chain (DPSC) methodology;
• a consumption-based (CB) methodology.

The DPSC methodology captures territorial GHG emissions and those associated with the largest supply chains serving cities, many of which are associated with city infrastructures. It covers direct GHG emissions from activities within the city boundary and indirect GHG emissions from the consumption of grid-supplied electricity, heating and/or cooling, transboundary travel and the supply chains from consumption of key goods and services produced outside the city boundary (e.g. water supply, food, building materials).

The DPSC methodology builds on the Global protocol for community-scale greenhouse gas emissions (GPC) [3], developed by the World Resources Institute (WRI), C40 Cities Climate Leadership Group and ICLEI Local Governments for Sustainability to include a wider range of indirect GHG emissions, and is consistent with emission sources covered by the GPC.

The CB methodology captures direct and life cycle GHG emissions for all goods and services consumed by residents of a city, i.e. GHG emissions are allocated to the final consumers of goods and services, rather than to the original producers of those GHG emissions. The CB methodology does not assess the impacts of the production of goods and services within a city that are exported for consumption outside the city boundary, visitor activities, or services provided to visitors.

A purely territorial accounting methodology, which focuses on all GHG sources within a boundary is not provided, but GHG emissions within the city boundary can be calculated as a subset of the DPSC methodology.


Incorporates the following:
Amendment, May 2014