FILE - Fish swim near some bleached coral at Kisite Mpunguti Marine park, Kenya, June 11, 2022.For the first time, United Nations members have agreed on a unified treaty on Saturday, March 4, 2023, to protect biodiversity in the high seas nearly half the planet's surface.Brian Inganga/AP WASHINGTON For the first time, United Nations members have agreed on a unified treaty to protect biodiversity in the high seas nearly half the planet's surface concluding two weeks of talks in New York.