How can carbon dioxide (CO2) be permanently removed from the atmosphere? Which approaches are realistic, meaningful and responsible? The Carbon Removal Atlas (CDRatlas) now provides answers to these questions. Developed under the leadership of the GEOMAR Helmholtz Centre for Ocean Research Kiel, this freely accessible online platform compiles scientifically sound information on methods for removing CO2 from the atmosphere. Its aim is to provide policymakers, public authorities, industry and the general public with robust, clearly structured knowledge, offering a reliable basis for dealing with difficult-to-avoid emissions.