Climate Change, Statelessness, and Digital Sovereignty

Safeguarding Island Nationhood

Abstract

As climate change accelerates the existential threat facing Small Island Developing States (SIDS), the case of Tuvalu represents a profound legal and moral challenge to international law. Tuvalu has pledged to maintain its sovereignty “in perpetuity,” even if rising seas render its territory uninhabitable. This research interrogates a central question: How can international law accommodate a state’s sovereign continuity in the absence of physical territory, and what transformative legal frameworks are necessary to support post-territorial statehood in climate-vulnerable contexts? This inquiry situates Tuvalu’s constitutional commitment to sovereignty within broader debates on climate justice, environmental displacement, and the postcolonial dimensions of international law. This paper explores how climate-induced statelessness reveals structural inequities embedded in doctrines of statehood, territorial integrity, and recognition. The paper draws upon relevant international legal instruments, including the 1933 Montevideo Convention, the United Nations Convention on the Law of the Sea (UNCLOS), the Paris Agreement, and emerging jurisprudence from the International Court of Justice (ICJ), particularly the 2023 advisory opinion proceedings initiated by Vanuatu. The research also critically examines Tuvalu’s Future Now Project, a pioneering initiative that seeks to preserve Tuvalu’s cultural, legal, and governmental identity through a digitised state apparatus hosted on cloud infrastructure. This novel strategy challenges traditional understandings of sovereignty, legal personality, and state continuity. In doing so, it introduces the concept of “digital sovereignty” as both a technological and legal innovation aimed at resisting erasure in an international system slow to adapt to ecological collapse. Furthermore, the paper considers the decolonial implications of Tuvalu’s stance.