New Global Ocean Conservation Treaty Takes Effect to Protect Marine Life

On January 17, 2026, a major international environmental treaty was officially instituted. The first-ever legally functioning treaty to protect marine biodiversity in international waters, the High Seas Treaty, also formally known as the Biodiversity Beyond National Jurisdiction (BBNJ) Agreement, aims to counter threats such as overfishing, marine pollution, and habitat destruction in the high seas.

The treaty, ratified by more than 60 countries, establishes a framework for creating Marine Protected Areas (MPAs) in international waters, particularly in regions that previously lacked conservation rules. Under the agreement, participating nations are required to cooperate in conducting environmental impact assessments (EIAs) for high-risk activities, including industrial fishing and seabed mining, and to follow agreed conservation standards intended to slow the rapid decline of ocean ecosystems.

According to the United Nations Environment Programme (UNEP), international waters account for nearly two-thirds of the global ocean, but only about 1% of these areas were legally protected before the treaty entered into force. Reports from the International Union for Conservation of Nature (IUCN) have shown that unregulated fishing and climate-driven ocean warming have placed increasing pressure on migratory species such as tuna, sharks, and whales.

Data collected by the UN Division for Ocean Affairs and the Law of the Sea shows that the treaty was developed in response to long-term scientific findings showing accelerated biodiversity loss in areas beyond national protected areas. These findings were based on satellite monitoring, fisheries data, and marine ecosystem assessments collected by international research organizations and intergovernmental bodies.

Despite its significance, the treaty faces several implementation challenges. Official UN briefing documents note that enforcement mechanisms and monitoring systems have not yet been finalized and will be negotiated during future conferences. During treaty discussions, proposed tools included satellite surveillance, vessel-tracking systems, and coordinated sea patrols to monitor compliance across vast ocean areas.

While 83 countries have signed the treaty, some major powers, including the United States, have not yet ratified it. The U.S. Department of State has stated that the United States will participate in treaty meetings as an observer until its domestic ratification process is completed.

The first formal Conference of the Parties (COP) under the treaty is expected to take place within a year. During this meeting, delegates are scheduled to negotiate the designation of specific Marine Protected Areas and finalize operational guidelines. UN officials have stated that decisions made during this conference will shape how the treaty is implemented in its early stages.

Reference

“BBNJ Agreement | Agreement on Marine Biological Diversity of Areas beyond National Jurisdiction.” Un.org, 2023, www.un.org/bbnjagreement/en. Accessed 30 Jan. 2026.

“History | Agreement on Marine Biological Diversity of Areas beyond National Jurisdiction.” Agreement on Marine Biological Diversity of Areas beyond National Jurisdiction, 2023, www.un.org/bbnjagreement/en/bbnj-agreement/history. Accessed 30 Jan. 2026.

“IUCN Director General’s Statement on the Entry into Force of the High Seas Agreement.” IUCN, 16 Jan. 2026, iucn.org/dg-statement/202601/iucn-director-generals-statement-entry-force-high-seas-agreement. Accessed 30 Jan. 2026.