There is One Ocean
There is One Ocean, a global common and a critical resource to human prosperity and well-being. It plays a crucial role in regulating the climate and supporting the livelihoods of three billion people, the vast majority in developing countries.
Climate change, overfishing, pollution, and conflict use
The Ocean is under threat from combined pressures such as climate change, overfishing, pollution, and conflicting uses. It is also a source of solutions, for example to mitigate and adapt to climate change.The Ocean urgently needs decisive, swift, and unified efforts to address its critical condition and maximize the solutions it offers. This presents a major challenge for the global community at the Third United Nations Conference on the Oceans (UNOC3), to be held in Nice from 9 to 13 June 2025. The goal is to spur action and implement SDG 14, which is the least funded of all Sustainable Development Goals.
A UNOC3 Special Event dedicated to Science
CNRS and IFREMER have been tasked with organizing the One Ocean Science Congress (OOSC), a UNOC3 Special Event dedicated to Science, and to provide Heads of State, Government, and the broader society, with comprehensive scientific insights on the Ocean's health and future trajectory. Science-informed decisions should enable the conservation and sustainable use of the Ocean, optimize the solutions it offers, and safeguard the services and benefits it provides to humanity.
To learn more about the Third United Nations Ocean Conference: UNOCNICE2025
About the One Ocean Science Congress
The Congress will feature a mix of plenary sessions, including opening and keynote speeches, alongside parallel oral and poster presentations. To enhance interactions between science and society, action and policy, and to engage civil society more broadly, 'townhalls' such as panels and roundtables will also be arranged.
News
The ocean urgently needs decisive, swift, and unified efforts to address its critical condition. This is the challenge facing the global community at the third United Nations Ocean Conference (UNOC3), to be held in Nice from 9 to 13 June 2025. To ensure that the political decisions to be taken are rooted in science, IFREMER and CNRS organize the international scientific congress One Ocean Science bringing together 2,000 experts from all over the world. 
The ocean urgently needs decisive, swift, and unified efforts to address its critical condition. This is the challenge facing the global community at the third United Nations Ocean Conference (UNOC3), to be held in Nice from 9 to 13 June 2025. To ensure that the political decisions to be taken are rooted in science, IFREMER and CNRS organize the international scientific congress One Ocean Science bringing together 2,000 experts from all over the world.
Nice will host the One Ocean Science Congress organised by the CNRS and the Ifremer from June 4th to 6th 2025 - just before the 3rd United Nations Ocean Conference. Jean-Pierre Gattuso, an oceanographer and CNRS research professor, and François Houllier, president and director of IFREMER, explain the main issues involved.
Nice will host the One Ocean Science Congress organised by the CNRS and the Ifremer from June 4th to 6th 2025 - just before the 3rd United Nations Ocean Conference. Jean-Pierre Gattuso, an oceanographer and CNRS research professor, and François Houllier, president and director of IFREMER, explain the main issues involved.
Discover the vision behind the congress, meet its co-chairs, and explore its connection to UNOC3 here.
Discover the vision behind the congress, meet its co-chairs, and explore its connection to UNOC3 here.
Discover the objectives of the One Ocean Science Congress through an interview of Jean-Pierre Gattuso and François Houllier, co-chairs of the One Ocean Science Congress.
Access the article here.
Discover the objectives of the One Ocean Science Congress through an interview of Jean-Pierre Gattuso and François Houllier, co-chairs of the One Ocean Science Congress.
Access the article here.