The ClimateWorks Foundation supports research grants to help close key knowledge gaps to advance ocean-based carbon dioxide removal (CDR), and to catalyze public and philanthropic interest in this field of research. Ocean-based CDR analogues are defined as marine settings that remove carbon dioxide (CO2) from the atmosphere via processes that could theoretically be replicated, accelerated, and scaled. As a stepping stone, ocean CDR analogues can serve as an opportunity to evaluate efficacies of CDR and environmental impacts of specific approaches. ABOUT THE FUNDERSThis Request for Proposals is generously supported by funding from the ClimateWorks Foundation Carbon Dioxide Removal (CDR) Program, and undertaken in partnership with Ocean Visions’ Ocean-Based CDR Program. ClimateWorks launched the CDR Program in 2018 to catalyze and promote the CDR field.