On average, every £ million of expenditure by local authorities in London resulted in 337 tonnes of GHG emissions, measured in carbon dioxide equivalent (CO2e). Local authorities with smaller carbon footprints than the average are well placed for controls on carbon and could help others identify carbon savings in their supply chains.
Local authority carbon footprints provide a baseline for targets to reduce emissions from supply chains. A range in the carbon footprints of procurement from 167 tCO2e per £ million of expenditure to 674 tCO2e/£ mn suggests that some local authorities could make big improvements in carbon efficiency. Plans to cut carbon can focus on sectors that add most to carbon footprints. The overall supply chain carbon footprint is mainly due to the high carbon intensity of sectors such as utilities and construction.