PARIS, 9th June, 2025 (WAM) – With the Mediterranean glittering in the background, UN Secretary-General António Guterres opened the Third United Nations Ocean Conference on Monday, delivering a blunt indictment of humanity’s fractured relationship with the sea.
“The ocean is the ultimate shared resource,” he told delegates gathered at the port of Nice. “But we are failing it.”
Oceans, he warned, are absorbing 90% of the excess heat from greenhouse gas emissions and buckling under the strain: overfishing, rising temperatures, plastic pollution, acidification. Coral reefs are dying. Fish stocks are collapsing. Rising seas, he said, could soon “submerge deltas, destroy crops, and swallow coastlines — threatening many islands’ survival.”
More than 50 Heads of State and Government took part in the opening ceremony, including Brazilian President Luiz Inácio Lula da Silva and European Commission President Ursula von der Leyen — a show of political force underscoring the summit’s weight.
In total, over 120 countries are participating in the five-day gathering, known by the shorthand UNOC3, signaling a growing recognition that ocean health is inseparable from climate stability, food security, and global equity.
French President Emmanuel Macron, whose country is co-hosting the summit alongside Costa Rica, followed with a forceful appeal for science, law, and multilateral resolve. “If the Earth is warming, the ocean is boiling.”
He insisted the fate of the seas could not be left to markets or opinion. “The first response is therefore multilateralism,” Macron said. “The climate, like biodiversity, is not a matter of opinion; it is a matter of scientifically established facts.”
Costa Rican President Rodrigo Chaves Robles took the podium next, thanking Guterres for elevating the ocean on the global agenda, then shifting to a stark warning.
“The ocean is speaking to us — with bleached coral reefs, with storms, with wounded mangroves,” he said. “There’s no time left for rhetoric. Now is the time to act.”
Condemning decades of treating the ocean as an “infinite pantry and global waste dump,” Chaves urged a shift from exploitation to stewardship.
One of the summit’s core objectives is to help bring into force the landmark High Seas Treaty — known as the BBNJ accord — adopted in 2023 to safeguard life in international waters. Sixty ratifications are required for the treaty to become binding international law. Emmanuel Macron announced that this milestone is now within reach.
“In addition to the 50 or so ratifications already submitted here in the last few hours, 15 countries have formally committed to joining them,” he said. “This means that the political agreement has been reached, which allows us to say that this [Treaty] will be properly implemented.”
Whether the legal threshold is crossed this week or shortly after, the French President added, “it’s a win.”