How space-based approaches can support the UN Global stocktake, starting in 2023, are the focus of technical discussions at the 2022 United Nations Climate Change Conference (COP27) currently taking place in Sharm El-Sheikh, and feature results from ESA’s trailblazing REgional Carbon Cycle Assessment and Processes project. These results come at a critical time ahead of next week’s ESA Council Meeting at Ministerial Level.