This report explores different possible trajectories of technological developments in the supply
chains of buildings and transportation infrastructure. By linking short-term and long-term goals with
specific technology options, the Mistra Carbon Exit roadmaps describe key decision points and
potential synergies, competing goals and lock-in effects. The analysis combines quantitative
analytical methods, i.e. scenarios and stylized models, with participatory processes involving relevant
stakeholders in the roadmap assessment process. The roadmaps outline material and energy flows
along with costs associated with different technical and strategical choices and explore interlinkages
and interactions across sectors. The results show how strategic choices with respect to process
technologies, energy carriers and the availability of biofuels, carbon capture, transport and storage
(CCS) and carbon neutral electricity may have very different implications on energy use and CO2
emissions over time.