With the EU poised to ratify the High Seas Treaty and launch its Ocean Pact, 2025 is a defining moment for Europe’s role in global ocean governance. This session brings together leaders from policy, science, and diplomacy to explore how the EU can move from political ambition to practical implementation. What will it take to safeguard biodiversity beyond national borders, and how can Europe lead in translating international commitments into binding protections? Against the backdrop of the post-Nice agenda, this conversation highlights the risks of delay and the opportunities for coordinated action.