This roadmap document is the third version of the Strategic Research Agenda (SRA) summarising current research activities, within and outside CHE, and to outline the future strategies required for establishing the anthropogenic CO₂ emissions Monitoring and Verification Support (MVS) capacity and the required capabilities. The current version documents the objectives of CHE and VERIFY, provides an overview of the various ESA scientific studies and of the current and planned satellite observation system, as well as the various outcomes of the project and studies.