As the new Biomass satellite settles into life in orbit following its launch on April 29, ESA has released its most extensive satellite-based maps of above-ground forest carbon to date. Spanning nearly two decades, the dataset offers the clearest global picture yet of how forest carbon stocks have changed over time. Developed through ESA’s Climate Change Initiative, this new long-term record integrates data from multiple satellite missions—and will soon be further enhanced by data from the Biomass mission itself. It tracks the carbon-rich woody parts of vegetation, mainly trunks and branches, across the globe for different years between 2007 and 2022, at resolutions ranging from 100 m to 50 km. Importantly, it is tailored to support climate and carbon modeling, forest management, and national greenhouse-gas reporting activities as part of the United Nations Framework Convention on Climate Change Paris Agreement.