As climate change causes sea levels to rise, nations like Tuvalu and Kiribati are confronting the potential loss of their landmass. This physical erosion has triggered a complex legal debate regarding the status of maritime boundaries, which are traditionally tied to the physical coastline of a state. If a nation's physical territory shrinks or disappears, the question arises whether its exclusive economic zones and maritime rights should remain frozen in their current locations or contract alongside the land.

This issue is particularly significant because maritime boundaries dictate access to fishing rights, mineral resources, and strategic navigation routes. While the international community has yet to reach a consensus, the debate challenges the traditional interpretation of the United Nations Convention on the Law of the Sea (UNCLOS). China’s involvement in this discussion is viewed by analysts as a strategic move to influence international maritime law and strengthen its diplomatic ties with Pacific island states. The SCMP reports that China’s participation is part of a broader effort to position itself as a key partner for these vulnerable nations, though the specific legal framework China advocates for remains a subject of ongoing analysis among international observers.