Abstract
The 2025 Advisory Opinion of the International Court of Justice on the Obligations of States in Respect of Climate Change has been widely interpreted as resolving the problem of "sinking states" by affirming that the disappearance of territory does not necessarily extinguish statehood. This article argues that such a reading addresses only the symptoms of the problem while overlooking its legal foundation. Rather than asking whether statehood survives territorial loss under the Montevideo criteria, it contends that the decisive question lies within the secondary rules of international law, specifically the law of state responsibility. Where anthropogenic climate change, resulting from internationally wrongful conduct, renders a state's territory permanently uninhabitable or physically submerged, extinction cannot be treated as a neutral geographical event. It constitutes a legal injury inflicted upon an international legal person. Building on the International Court of Justice's recognition of climate obligations as obligations *erga omnes*, this article advances a responsibility-based theory of state continuity grounded in the principle *ex injuria jus non oritur*. It proposes an inversion of Article 41(2) of the Articles on Responsibility of States for Internationally Wrongful Acts, arguing that the existing duty of non-recognition should extend beyond unlawful territorial acquisition to prohibit recognition of state extinction brought about through internationally wrongful conduct. Under this framework, continuity ceases to be an act of political discretion or international goodwill and instead becomes a legal consequence owed to the injured state. The article further examines the remedial implications of this approach, including the preservation of international legal personality, treaty participation, maritime entitlements, nationality, and institutional continuity, while addressing objections concerning causation, the scope of peremptory norms, and the practical limits of legal recognition. It concludes that the future of endangered states depends not upon expanding the doctrine of statehood, but upon relocating the debate from primary rules of recognition to the secondary rules governing international responsibility.