Page 17 - Methodology to assess Net Zero progress in cities

2 Scope 2 GHG emissions for the city (mandatory from the beginning of the mission). This indicator
will be calculated based on the emissions from indirect emissions due to the production/
consumption of grid-supplied electricity within the geographic boundary and indirect emissions
due to the production/consumption of grid-supplied heat or cold within the geographic
boundary.

3 Scope 3 GHG emissions for the city. This indicator will be calculated based on the emissions
from out-of-boundary emissions from: the treatment of waste produced within the geographic
boundary; out-of-boundary emissions from transmission and distribution of energy consumed
within the geographic boundary; out-of-boundary emissions from the transportation of citizens
living within the geographic boundary; out-of-boundary emissions from consumption made
within the geographic boundary (e.g., food, clothes, furniture, materials); and other indirect
emissions.

3.1.2 Carbon consumption maturity model

Inspired by the smart sustainable city (SSC) maturity model that is described in the Recommendation
ITU-T Y.4904 “Smart sustainable cities maturity model” (ITU, 2019) the city can be analysed in the
following dimensions, according to the integrated approach to a Net Zero carbon city (World
Economic Forum, 2021) (Figure 4).

Figure 4: An integrated approach to a Net Zero carbon city (World Economic Forum, 2021)

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