The Inclusive Forum on Carbon Mitigation Approaches (IFCMA) is the OECD’s flagship initiative designed to help optimise the global impact of emissions reduction efforts around the world through better data and information sharing, evidence-based mutual learning and inclusive multilateral dialogue. It brings together all relevant policy perspectives from a diverse range of countries from around the world, participating on an equal footing basis, to take stock of and consider the effectiveness of different carbon mitigation approaches. The OECD IFCMA Papers series brings together outputs from the initiative’s work to take stock of different carbon mitigation approaches, map policies to the emissions they relate to, and estimate their impact on greenhouse gas emissions, as well as on methodologies for computing carbon intensity of goods and sectors.