The recent advisory opinion titled “Request for an Advisory Opinion Submitted by the Commission of Small Island States on Climate Change and International Law” marks a significant milestone in the fields of international relations, public policy, and international law. Ocean renewable energy is pivotal in crafting a comprehensive strategy to combat climate change, underscoring the need to thoughtfully consider innovative technologies in this area. Each sovereign state must develop its own policy approach, balancing maritime rights, the needs of its population, and a careful assessment of the environmental impacts on its natural resources. This analysis will explore the implications of this landmark advisory opinion on ocean renewables, particularly in the context of other international judgments and advisory opinions that shape global public policies on renewable energy. Ocean renewable energy is essential for an effective response to climate change, emphasizing the importance of integrating advanced technologies and environmental considerations into policy-making processes.