For each of those targets and sub-targets, URW: Has selected a strong and robust baseline, the year 2015, to reflect the improvements in terms of carbon reduction compared to a common year of all our targets; Has a carbon trajectory model built by combining internal and external levers, and relying on hypothesis from external decarbonation scenarios. The models also consider the impact of future internal activity based on hypothesis; Has identified and quantified the levers and associated level to reach the expected reduction; and Has quantified the costs related to the environmental transition.