A landmark U.N. agreement to protect marine biodiversity in the high seas has secured the final ratifications needed to enter into force, a major milestone for global ocean conservation.
Following the deposit of ratification instruments by four nations — Sri Lanka, St. Vincent and the Grenadines, Sierra Leone, and Morocco — the High Seas Treaty reached the milestone of 60 nations on Friday, triggering its entry into force. The treaty will become legally effective on Jan. 17, 2026.