Expanding greenhouse gas accounting in the fisheries sector using the Environmental eXternalities ACcounting Tool (EX-ACT)
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This methodological note presents the updated approach for estimating greenhouse gas (GHG) emissions from fisheries using the Environmental eXternalities ACcounting Tool (EX-ACT). It reviews the limitations of previous versions of EX-ACT and outlines the improvements implemented in the online EX-ACT application, in-cluding the introduction of dedicated modules for small-scale and large-scale fisheries. The revision enhances the accuracy and representativeness of GHG flux estimates by incorporating new data sources, refining fuel use intensity metrics, and updating refrigerant and ice-making emission factors. The note serves as a technical reference for practitioners and policy-makers aiming to assess and mitigate climate impacts in the fisheries sector.