The High Seas Treaty has been named the winner of the 2025 Earthshot Prize in the “Revive Our Oceans” category, marking one of the most significant global achievements for ocean protection in decades.
The Treaty, which reached 60 ratifications in September and is set to come into force on 17 January 2026, creates the first-ever global framework to protect the vast stretch of ocean that lies beyond national borders. Covering nearly half of the planet, these waters – known as the high seas – have historically lacked strong conservation rules. The agreement enables the establishment of marine protected areas, ensures biodiversity conservation and aims to share ocean resources more equitably among nations.
The High Seas Alliance, a coalition of more than 70 organisations that has spent over 20 years pushing for the agreement, accepted the award on behalf of the global movement backing the Treaty. The recognition highlights the collective work of civil society groups, governments, scientists, Indigenous Peoples and community leaders who have campaigned for stronger ocean governance.
Speaking at the ceremony, High Seas Alliance Director Rebecca Hubbard described the Treaty as a turning point for global ocean protection, saying it offers hope at a time when political cooperation is increasingly strained. She emphasised that the focus now shifts to implementation, calling on countries to ratify the agreement and ensure it becomes a practical and enforceable tool for safeguarding marine life.
Founded in 2020 by Prince William, the Earthshot Prize honours innovative efforts to repair and protect the planet. This year’s winners were selected from nearly 2,500 nominations across 72 countries.
The recognition of the High Seas Treaty comes at a critical moment. As it prepares to enter into force, governments and civil society organisations face the challenge of translating the agreement into measurable action, including creating new protected areas and improving oversight of industrial activities on the high seas.
The High Seas Alliance also congratulated the other 2025 Earthshot Prize winners, acknowledging their collective contribution to building a more sustainable and equitable future.
More information on all finalists and winners is available at earthshotprize.org.
