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Nice Ocean Conference Drives Treaty Ratifications and Billion-Euro Conservation Pledges

World leaders backed a sweeping political declaration mobilizing large-scale funding with the High Seas Treaty edging toward entry into force

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The logo of the third United Nations Ocean Conference (UNOC3), which gathers leaders, researchers and activists to discuss how to protect marine life, is seen at the Centre des Expositions conference centre in Nice, France, June 10, 2025. REUTERS/Manon Cruz/File Photo
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The logo of the third United Nations Ocean Conference (UNOC3), which gathers leaders, researchers and activists to discuss how to protect marine life, is seen at the Centre des Expositions conference centre in Nice, France, June 10, 2025. REUTERS/Manon Cruz

Overview

  • Over 170 countries adopted a political declaration at the Nice summit urging measures to protect marine biodiversity, regulate the high seas and unlock ocean finance.
  • The European Commission committed €1 billion to ocean conservation, New Zealand pledged $52 million for Pacific governance and Spain and French Polynesia announced new marine protected areas.
  • The High Seas Treaty reached 50 ratifications during the conference and is poised to hit the 60-ratification threshold needed for entry into force within weeks.
  • Scientists at the One Ocean Science Congress presented a manifesto outlining 10 evidence-based recommendations to guide global ocean policy.
  • UN Secretary-General António Guterres and co-hosts Emmanuel Macron and Rodrigo Chaves Robles emphasized the ocean’s critical role in mitigating climate change as momentum builds for action.