02 U.S. Politics

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Introduction

The current international order is based on the presumption that our physical geography is fixed and unchanging. However, climate change—in the form of sea level rise and inundation—is shifting international boundaries. The world’s changing geography will force policymakers and legal experts to adapt the concepts of sovereignty, statehood, and citizenship to address the new global environment.

This paper focuses its discussion of climate impacts and response policies on the Pacific islands. The changes befalling low-lying islands, like those in the Pacific, are a harbinger of the future that awaits the residents of coastal cities and shorelines on larger land bodies.¹ Islands’ experiences of climate change offer insights into the shortcomings of the existing international system and demonstrate the fundamental tension between sovereignty and climate change. Ultimately, the Pacific region serves as an important case study and a critical blueprint for the future of global adaptation and stability.

In view of this challenge, policymakers should consider new legal options to address climate-induced boundary changes. These may include the creation of fictitious boundaries, collective sovereignty, hybrid citizenship, and corridors for climate displacement. This paper does not seek to suggest that these new ideas for sovereignty are the only path to resolving the nexus of legal-climate challenges that exist today. Instead, this paper attempts to raise new questions and ideas about how policymakers should think about the international system at a time when anthropogenic climate and environmental change is rearranging its geophysical foundations.