Strategies For The Evaluation And Assessment Of Ocean Based Carbon DioxideRemoval (SEAO2-CDR)

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SEAO2-CDR is an ambitious multidisciplinary project that unites expert scientific, economic, legal, political, social and ethicalresearchers with industry leaders and regulators to establish and assess the evaluation pathways and methodologies required forsustainable and effective operationalisation of Ocean-based Carbon Dioxide Removal (OCDR). The implementation of appropriate CDRstrategies is regarded as an essential component of most Net Zero emission pathways, yet the mechanisms and processes needed tofacilitate their deployment remain largely unexplored. Notably OCDR approaches have generally received less attention than terrestrialCDR technologies despite offering equivalent, or greater, sequestration potential. SEAO2-CDR addresses critical gaps in our technoeconomic understanding of archetypal OCDR approaches in order to define the operational spaces in which they are environmentallyand economically viable, and will establish robust Monitoring, Reporting and Verification (MRV) strategies for different approachesusing state-of-the-art Earth System Models (ESMs) and autonomous sensor technologies. Stakeholder-oriented governance frameworkswill be developed that define the multi-dimensional interaction points through which responsible and effective governance of OCDRcould be implemented and support the business development and investment needed to scale up OCDR. Finally, the parameterisation ofecological synergies and system-level trade-offs will enable OCDR to be incorporated into Integrated Assessment Models (IAMs) thatidentify which techniques are best positioned to support the transition to a climate-neutral and resilient society. Together these activitieswill enable SEAO2-CDR to advance the implementation potential of OCDR by supporting the characterisation and development ofenvironmentally safe, socially acceptable, and economically viable approaches that can help realise global climate policies.