As an extreme El Niño breaks marine temperature records, COP31 is set to boost the profile of the ocean’s role in solving climate change, but finance and clear conservation measures will be needed for it to move the needle, experts said. The Turkish presidency has announced plans for an Antalya Ocean Declaration that recognises the centrality of the global ocean – the world’s largest carbon sink – in regulating the climate and minimising the now unavoidable overshoot of global temperatures above 1.5C over pre-industrial levels. Meanwhile, as part of the formal UN negotiations, Australia has announced plans to land a cover decision in Antalya, which, according to veteran former US negotiator Sue Biniaz, would be the only section of the formal negotiations where the role of oceans could be included. She added that an outcome at COP31 seems likely, given the initiative from both presidencies and a push from over 100 countries – including Brazil, the EU and the African Group of countries – calling for the UN negotiations to deliver a plan for implementing ocean measures. Governments will arrive in Antalya with a ‘super El Niño’ adding stress to marine ecosystems and expected to continue to intensify until December 2026, with parts of the Pacific averaging almost 30C (86F) – over 3C more than normal – in October, according to monthly EU sea temperature data. Nov 5, 2026 News COP31 Briefing: What to expect from the Antalya climate summit? Electrification, the fossil fuel transition, adaptation to rising impacts, climate science and trade are key themes as governments gather for COP31 in Türkiye Read more Nov 6, 2026 News European nations signal support for fossil fuel roadmap, says COP30 president André Corrêa do Lago told Climate Home News that it’s up to other nations to decide how the fossil fuel and deforestation roadmaps are used Read more Nov 6, 2026 News Nepal seeks stronger recognition of mountain issues in UN climate process Flood-hit Nepal wants COP31 to adopt a new agenda item formalising work on mountains and climate change and boosting the response to rising risks Read more Needs for ocean conservation and funding While elevating the ocean agenda is ‘critical’, it must lead to funding for ocean conservation and a clear plan for reaching the global target – set at UN biodiversity talks in 2022 – of protecting 30% of the global ocean by 2030, said Pradeep Singh, senior ocean governance expert at Oceano Azul Foundation. The ocean is precisely where governments are farthest off track from meeting this target – informally known as the 30×30 goal. Even if countries meet all their nature conservation plans, only about 12% of the global ocean would be protected, the UN says. ‘Acknowledgment of marine protected areas and the 30×30 target as climate infrastructures will certainly boost efforts and funding for science and management,’ Singh told Climate Home News. Shamini Selvaratnam, director of international climate and clean energy at Ocean Conservancy, said an ocean commitment that makes a difference in coastal communities ‘takes funding, local capacity and support that countries can actually access’. An analysis by climate think tank Zero Carbon Analytics shows that investment in the blue economy – through activities like sustainable fisheries or cleaner shipping – is only at about 2% of the needs, which are estimated at $550 billion per year. Divers survey the extent of bleaching in the Chagos archipelago (Credit: Living Oceans Foundation) Following-through on commitments Selvaratnam added that countries must also establish mechanisms to follow through on these measures, which currently only exists in the form of a non-binding dialogue that is not expected to produce any negotiated agreements. She said that countries at COP31 must find ways for their ocean commitments to inform the next global stocktake, the UN’s five-yearly review of progress on climate action. Some countries – including African countries, Latin American nations, small island states and the European Union – have backed a process that culminates in the next global stocktake. At climate negotiations, countries are not mandated to include ocean conservation measures in their climate plans. But a group of countries led by France and Brazil is pushing them to do so voluntarily through an initiative called Blue NDC Challenge. Seventeen countries have joined the initiative so far. In its list of COP31 priorities, the EU has called for the ‘critical role’ of oceans to be recognised, but falls short of calling for any specific actions to feature marine action more prominently in climate plans. As part of their demands, ocean campaign groups have called for the establishment of an ‘Antalya Ocean Compact’, a platform where countries can coordinate efforts across different environmental treaties, including the UN climate, biodiversity and high seas negotiations. Ultimately, Selvaratnam said a strong deal ‘must accelerate emissions cuts, clean energy, and a transition away from fossil fuels, including offshore oil and gas’. Ilana Seid, chair of the AOSIS group of small island states and permanent representative of Palau to the UN, said during a press briefing last week that ‘meaningful progress’ on emissions reduction is ‘the best way’ to alleviate stress on the ocean. 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