Greenhouse Gas Protocol: Recalculation Triggers Mobile App
Cities should not recalculate base year emissions for organic growth (e.g., changes in the level or type of city activities).
How does it work?
Cities should also note that emission factors for electricity and GWP are specific to every year, and their changes do not count as methodology changes. To isolate the role of changing activities compared with changing emission factors, cities may track activity data separately—for instance, tracking energy use separately to see the impact of energy efficiency policies. These recalculation triggers are summarized in the Greenhouse Gas Protocol: Recalculation Triggers mobile app.