Climate governance overlooks the ocean: a structural limitation exposed at COP30

A persistent gap remains in climate governance: ocean dynamics, despite shaping the pace and expression of climate risk, are still weakly integrated into its core mechanisms. COP30 brought this limitation into focus. Its final decision text omitted the ocean entirely, even as record ocean heat content, intensifying marine heatwaves and accelerating sea-level rise defined the physical reality of 2024–2025. This omission is striking given that COP30 simultaneously delivered the strongest ocean-related initiatives ever presented at a UN climate conference. This reflects not a lack of ambition, but a structural weakness: the UNFCCC system lacks the mechanisms needed to integrate ocean science into core decision-making, including standardized indicators, systematic reporting and institutional continuity. Addressing this requires embedding ocean indicators into reporting and Global Stocktake processes, strengthening coordination across climate and ocean policy, and anchoring emerging initiatives within the UNFCCC framework.