Le congrès One Ocean Science, un éclairage scientifique pour la 3e conférence des Nations unies sur l'Océan

A defining feature of the 3rd United Nations Ocean Conference was its precursor: an international scientific congress designed to base political commitments on the best available knowledge. The analysis carried out in this article of the link between scientific recommendations and the commitments made highlights the value of such an approach, with the launch of several actions aimed at improving the protection and preservation of the ocean. This is the case, for example, with the establishment of a coalition of countries seeking to place the ocean at the heart of national climate plans, echoing the recommendation to use oceanbased approaches to achieve the objectives of the Paris Agreement. It is also the case with the significant increase in the surface area of marine protected areas, in response to the recommendation to protect marine ecosystems while honoring international commitments. The analysis also points to shortcomings, such as the failure of negotiations on the international plastics treaty. It further shows that certain issues raised by scientists, such as ocean-based food, have not been discussed during the conference. Overall, the efficacy of this science-policy interface argues strongly for its continuation at the 4th edition in 2028.