What is the principle of Permanent Sovereignty over Natural Resources (PSNR) and how is climate change challenging this principle?

Permanent Sovereignty over Natural Resources (PSNR) is a fundamental principle of international law that affirms the right of states and peoples to freely exploit, manage, and utilize their natural resources in accordance with their national interests. Emerging strongly during the decolonization period, PSNR symbolized the aspiration of developing countries to achieve economic independence and resource autonomy. Under this doctrine, states possess full authority to extract and use natural resources such as fossil fuels located within their territory and continental shelf.However, climate change mitigation imperatives are increasingly challenging this traditional legal norm. The global commitment to limit warming to 1.5°C above pre-industrial levels requires a substantial reduction in fossil fuel extraction and consumption. Scholars and policymakers have therefore proposed initiatives such as a Fossil-Fuel Non-Proliferation Treaty, which would restrict further exploration and gradually phase out existing fossil fuel reserves. Such proposals directly intersect with PSNR because they seek to impose limits on how states use their natural resources.For developing countries that depend heavily on fossil fuel revenues, this raises concerns about economic justice and developmental equity. Many argue that if restrictions on fossil fuel extraction are imposed, they must be accompanied by adequate climate finance, technology transfer, and capacity-building support from developed nations. Thus, climate change is forcing the international community to reconsider how PSNR can coexist with the global responsibility to address climate change.

Why is sea-level rise (SLR) creating new challenges for the traditional concept of statehood in international law?

The traditional concept of statehood in international law is largely based on the Montevideo Convention of 1933, which sets out four criteria for recognizing a state: defined territory, permanent population, government, and the capacity to enter into relations with other states. Among these elements, the requirement of a defined territory has become particularly problematic in the context of climate change-induced sea-level rise.Many small island developing states (SIDS), especially in the Pacific and Indian Oceans, face the risk of losing significant portions of their land territory due to rising sea levels. Countries such as Tuvalu, Kiribati, and the Maldives could experience partial or even complete submergence of their landmass in the coming decades. This situation raises an unprecedented legal question: can a state continue to exist if its territory disappears?Although the International Court of Justice (ICJ) has indicated in an advisory opinion that the disappearance of one constituent element does not necessarily lead to the loss of statehood, the claim remains legally modest and uncertain. The Pacific Islands Forum (PIF) in 2023 asserted that climate change should not lead to the demise of affected states. Nevertheless, the lack of clear legal provisions means that the continuity of such states remains precarious. Consequently, climate change is forcing international law to rethink traditional notions of territory and sovereignty.

How could climate change reshape international legal frameworks regarding climate-induced migration ?

Climate change is expected to trigger large-scale human displacement due to factors such as sea-level rise, extreme weather events, desertification, and loss of livelihoods. However, existing international legal frameworks do not adequately recognize people displaced by environmental or climate-related causes. The 1951 Refugee Convention defines a refugee as someone fleeing persecution based on race, religion, nationality, political opinion, or membership in a particular social group. Climate-related displacement does not fall within these categories.As a result, individuals forced to migrate due to environmental degradation or sea-level rise often lack formal legal protection in host countries. They may lose access to citizenship rights, social protections, and legal recognition. This legal gap has led scholars and policymakers to propose new frameworks specifically addressing climate-induced migration.One influential proposal comes from Frank Biermann, who advocates the creation of a Protocol under the United Nations Framework Convention on Climate Change (UNFCCC) dedicated to recognizing and protecting climate refugees. Such a protocol could establish mechanisms for planned relocation, international burden-sharing, and resettlement support. By integrating climate migration into global governance structures, the international community could develop a more humane and coordinated response to one of the most pressing humanitarian consequences of climate change.

What are the reasons behind the growing debate over maritime baselines in the context of sea-level rise?

Maritime baselines are the legal starting points from which coastal states measure their maritime zones, including the territorial sea, contiguous zone, Exclusive Economic Zone (EEZ), and continental shelf. Under the United Nations Convention on the Law of the Sea (UNCLOS), baselines are generally drawn along the low-water line of the coast. However, climate change-induced sea-level rise (SLR) threatens to alter coastlines, potentially shifting these baselines landward.If baselines move inland due to coastal erosion or submergence, maritime zones such as EEZs could also shrink. This would result in the loss of valuable marine resources, fisheries, and offshore energy reserves for coastal states. For small island nations whose economies depend heavily on maritime resources, such losses could be devastating.To address this risk, several states—particularly Pacific Island countries—have proposed the concept of fixed or permanent baselines. Under this approach, once baselines are declared, they would remain legally unchanged despite sea-level rise. However, this approach differs from the traditional ambulatory baseline principle under UNCLOS, where baselines move with the natural coastline. Resolving this debate will likely require reinterpretation or modification of existing UNCLOS provisions.

Critically analyze the proposal for a Fossil-Fuel Non-Proliferation Treaty in the context of global climate governance.

The proposal for a Fossil-Fuel Non-Proliferation Treaty seeks to complement existing climate agreements by directly addressing the supply side of fossil fuels. Unlike the Paris Agreement, which primarily focuses on reducing greenhouse gas emissions, this treaty would aim to halt new fossil fuel exploration, phase down existing production, and promote a just transition to renewable energy.Supporters argue that such a treaty is essential for achieving the global target of limiting warming to 1.5°C. They point out that continued investment in new oil, gas, and coal projects contradicts scientific recommendations from bodies such as the Intergovernmental Panel on Climate Change (IPCC). A treaty could provide clear global rules and prevent a "race to extract" remaining fossil fuel reserves.However, critics highlight several concerns. Many developing countries rely heavily on fossil fuel extraction for economic growth, employment, and fiscal revenues. Imposing restrictions without adequate compensation could worsen development inequalities. Therefore, any such treaty must incorporate principles of climate justice, differentiated responsibilities, technology transfer, and financial assistance. Without addressing these concerns, the treaty may face resistance from resource-dependent economies.

Using the example of Pacific Island States , explain how climate change is forcing a rethinking of international legal norms.

The experience of Pacific Island States such as Tuvalu, Kiribati, and the Marshall Islands illustrates how climate change is challenging fundamental assumptions of international law. These countries face severe threats from sea-level rise, coastal erosion, and saltwater intrusion, which jeopardize their territory, freshwater resources, and livelihoods.One key legal challenge concerns the continuity of statehood. If rising seas permanently submerge the territory of these states, it raises unprecedented questions about whether they can continue to exist as sovereign entities. In response, the Pacific Islands Forum (2023) declared that international law should recognize the continued existence of affected states regardless of territorial loss. This position seeks to preserve their sovereignty, international representation, and legal rights.Another issue relates to maritime zones. Many Pacific states have advocated fixing their existing baselines so that their Exclusive Economic Zones remain intact despite sea-level rise. Their collective advocacy has brought global attention to the need for adaptive interpretations of international law. The case of Pacific Island states thus demonstrates how climate change is not only an environmental challenge but also a catalyst for the transformation of global legal norms.

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The Urgent Need for International Legal Reforms Amid Climate Risks

Understanding how climate change challenges international law principles like statehood and maritime zones for better future governance

Gopi

•March 5, 2026•4 mins read

Climate Change and the Need to Reform International Law

Introduction • Climate change is increasingly challenging the foundations of international law, including state sovereignty, territorial integrity, migration laws, and maritime boundaries. • Rising temperatures, sea-level rise, and environmental degradation are forcing the global community to rethink existing legal frameworks. Permanent...

The Urgent Need for International Legal Reforms Amid Climate Risks

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