Carbon footprint in green public procurement: Policy evaluation from a case study in the food sector

The results of this study highlight the different climate impacts of the three phases of the supply chain, in particular 61-70% of the greenhouse gases are emitted in the production phase, 6-11% in the provisioning phase and 24-28% in urban distribution. As a consequence, policies that affect production practices have the greatest potential for reducing the carbon footprint of the catering service. Other policies (such as those on transportation) can have controversial effects. Therefore, to improve planning of sustainability policies, the greenhouse gas emission savings achieved by each policy must be analysed in-depth.