It is increasingly clear that to stay within the limits agreed with the Paris Agreement, all possible climate mitigation options and pathways must be seriously considered. The need to substantially reduce CO2 emissions, including in “hard to abate” sectors, raises the interest in mitigation options such as storing or (re-using) CO2 emissions, or using biomass and renewables based-fuels. However, the growing awareness for the need, potential and applicability of these technologies raises the question of potential trade-offs and use conflicts, e.g. regarding the total availability of biomass and renewable electricity or the capacity and feasibility of CO2 transport and storage infrastructure. This panel will start from the concept of a circular carbon economy to discuss the full picture and potential of main climate mitigation levers (reduction, re-use and storage of CO2) for different sectors; together with potential tradeoffs and solutions.