This dataset is composed of five indicators which provide information on the economic and environmental performance of sectors covered by the European Union’s Emissions Trading Scheme (EU ETS). The focus of the dataset is to have an overview of trends across sectors by tracking the evolution of the economic and environmental scope of the EU ETS. Doing so generates new insights into the coverage of the EU ETS, a key EU climate policy aimed at reducing Greenhouse Gas Emissions (GHG) cost-effectively. . The indicators were produced within the framework of the project LIFE COASE, co-financed by the EU LIFE Programme. The project aims to support EU and Member State policymakers in the implementation and development of the EU ETS. It aims at creating lasting cooperation between policymakers, academia and stakeholders and raising public awareness in the field of emissions trading.