Sustainable use of marine biological diversity of areas beyond national jurisdiction under the United Nations Convention on the Law of the Sea became a key topic for the negotiations since the 2012 United Nations Conference on Sustainable Development in Rio de Janeiro. Ocean change is now the most significant threat facing humanity, especially those living in coastal areas. The possible and already observed loss of territory, and thus sovereignty of the submerged states, is not the only legal consequence of ocean change happening now, in the 21st century. Another factor is the downsizing of Exclusive Economic Zones, which implies political tensions between the neighboring countries, both sovereign and dependent territories of the former colonial powers. France is present in the Indian Ocean and the Pacific Ocean via its overseas collectivities. Thus, instead of being at the 45th position in the world’s ranking of the ocean powers, the Republic of France comes in the second position, straight after the United States of America. This high and indeed precious position, both geostrategically and economically, affects its views toward the United Nations negotiations process on biological diversity beyond national jurisdiction.