Carbon Limits is part of an Oeko Institute-led consortium analysing potential domestic, regional and international markets in tradable emission reductions (i.e. crediting schemes and ETS) for the European Commission. The study examines how these systems may evolve under the Paris Agreement, and includes developing a methodology to evaluate the environmental integrity and unit quality of traded units from linked Emission Trading Schemes (ETS) or crediting systems, as well as an assessment of the CORSIA scheme. Carbon Limits analysed NDCs for their engagement with international and domestic carbon markets and developed an assessment framework to evaluate different crediting mechanisms/standards. Other partners include Stockholm Environment Instiute and INFRAS.