Global Consultation Seeks Stakeholder Inputs on Sea Level Rise Declaration – SDG Knowledge Hub

An Uncharted Legal Frontier: The World Gathers to Define a Future on a Rising Sea

In a world grappling with the accelerating impacts of climate change, the slow, relentless creep of the world’s oceans presents one of humanity’s most complex and existential challenges. Beyond the immediate physical threat to coastlines and communities, rising sea levels are eroding the very foundations of the international legal order, questioning the permanence of borders, the definition of statehood, and the rights of millions. In response to this looming crisis, a pivotal global consultation has been launched, inviting nations, experts, and civil society to contribute to a landmark Declaration on Sea Level Rise. This initiative marks a critical attempt to build a global consensus and forge legal principles for a future where the world map as we know it may be irrevocably altered.

The consultation process, a crucial step in the progressive development of international law, aims to address a cascade of unprecedented questions. What happens when a nation’s territory submerges beneath the waves? Do its maritime boundaries, and the vast economic resources they contain, vanish with the coastline? How does the global community protect the rights, identity, and sovereignty of a population whose physical homeland has disappeared? These are not hypothetical queries for a distant future; for low-lying coastal communities and Small Island Developing States (SIDS), they are urgent realities shaping their national survival strategies today.

This comprehensive article delves into the significance of this global consultation. It explores the intricate legal challenges posed by sea level rise, identifies the key stakeholders whose voices will shape the forthcoming declaration, and analyzes the profound implications this process holds for global governance, human rights, and the very concept of the nation-state in the 21st century.

The Call for a Global Consensus: Launching a Landmark Declaration

The initiation of this global consultation is more than a bureaucratic exercise; it is a recognition by the international community that the existing legal frameworks, drafted in an era of relative climatic stability, are ill-equipped to handle the dynamic and transformative nature of sea level rise. It is a call to action to proactively shape the legal norms that will govern our collective response, rather than reacting once the crisis has overwhelmed our institutions.

What is the Global Consultation?

At its core, the consultation is a systematic process of information gathering and dialogue. It is a formal invitation extended to all 193 United Nations Member States, as well as international organizations, scientific bodies, non-governmental organizations, indigenous groups, and legal experts, to submit their views, research, and proposals. The goal is to create a rich and diverse body of input that reflects the multifaceted nature of the challenge.

The submissions will likely cover a wide spectrum of issues, including:

• State Practice: How are individual countries, particularly those on the frontline, already adapting their national laws and policies? For example, some Pacific island nations have begun to declare their maritime boundaries as permanent, irrespective of future shoreline changes.
• Legal Interpretation: What are the prevailing legal opinions on the interpretation of existing laws, such as the UN Convention on the Law of the Sea (UNCLOS), in the context of rising seas?
• Scientific Evidence: What are the latest projections from bodies like the Intergovernmental Panel on Climate Change (IPCC) regarding the rate and scale of sea level rise, and how should this data inform legal principles?
• Human Rights Implications: What are the specific human rights threatened by sea level rise, including the right to life, property, culture, and self-determination, and what legal protections are needed?

This inclusive approach ensures that the resulting declaration is not merely a top-down edict but a reflection of a broad-based global understanding, increasing its legitimacy and potential for widespread acceptance.

The Role of International Law and its Custodians

This initiative is deeply rooted in the work of bodies tasked with the stewardship of international law, most notably the UN’s International Law Commission (ILC). The ILC, a body of 34 legal experts elected by the General Assembly, holds the crucial mandate of “the promotion of the progressive development of international law and its codification.”

For several years, the ILC has been actively studying the topic of “Sea-level rise in relation to international law.” The Commission has broken down the problem into three key areas of study:

1. Law of the Sea: Focusing on the stability of maritime boundaries.
2. Statehood: Examining the criteria for statehood when territory is lost.
3. Protection of Persons: Addressing the rights of affected populations, including issues of displacement and nationality.

The current global consultation is a direct outcome of this meticulous work. It serves to gather the broader international community’s perspectives to inform the ILC’s final conclusions and recommendations, which will form the substantive basis of the proposed declaration. The process represents international law-making in action—a careful, deliberate, and consultative effort to adapt legal norms to new and pressing global realities.

Why a Declaration? The Power of Principles

In international relations, the choice of a legal instrument is highly strategic. While a binding treaty might seem like a stronger solution, a declaration is often a more pragmatic and effective first step. A declaration is a non-binding instrument that sets out a series of agreed-upon principles. Its power is not in legal enforcement but in its political and moral weight.

A Declaration on Sea Level Rise could achieve several critical objectives:

• Build Political Consensus: It allows states to agree on fundamental principles without immediately committing to the onerous obligations of a treaty, making it easier to achieve a broad consensus.
• Clarify Existing Law: It can provide an authoritative interpretation of how existing laws should apply to the novel challenges of sea level rise, offering guidance to states, courts, and international bodies.
• Pave the Way for Future Law: Successful declarations often serve as the foundation for future binding treaties. The Universal Declaration of Human Rights, for example, paved the way for the International Covenants on Civil and Political Rights and on Economic, Social and Cultural Rights. It can also crystallize emerging norms into what is known as customary international law, which is binding on all states.

By pursuing a declaration, the international community is choosing a path of collaborative norm-building, creating a shared understanding before moving towards more rigid legal commitments.

The Unprecedented Legal Quagmire of a Rising Sea

To fully grasp the importance of this consultation, one must understand the profound and perplexing legal questions that sea level rise poses. It challenges long-held principles of territoriality and sovereignty that have underpinned the global order for centuries.

Redrawing the Map: Baselines, Borders, and Maritime Rights

The 1982 UN Convention on the Law of the Sea (UNCLOS) is the “constitution for the oceans.” It governs everything from navigation to deep-sea mining. Central to this treaty is the concept of the “baseline”—normally the low-water line along the coast—from which a state’s maritime zones are measured.

These zones are immensely valuable:

• Territorial Sea (up to 12 nautical miles): Where the coastal state has full sovereignty.
• Exclusive Economic Zone (EEZ) (up to 200 nautical miles): Where the coastal state has sovereign rights over all natural resources, such as fish stocks and offshore oil and gas.
• Continental Shelf (up to 350 nautical miles): Granting rights to resources on and under the seabed.

The problem is that UNCLOS assumed coastlines were relatively stable. As sea levels rise, coastlines retreat, and low-lying islands disappear. This raises a critical question: Do a state’s maritime zones shrink as its coastline recedes? If so, a nation could lose its rights to vital fisheries that feed its people or hydrocarbon reserves that fund its economy. This legal uncertainty creates a risk of future conflict over shifting maritime entitlements.

The declaration will need to address this head-on. A leading proposal, championed by SIDS, is the principle of “fixing” or “freezing” maritime boundaries. This would mean that once baselines and outer limits are established and deposited with the UN, they remain permanent, regardless of subsequent sea level rise. This would provide legal certainty and stability, protecting the entitlements of the most vulnerable nations.

The Spectre of the ‘Deterritorialized State’

Perhaps the most profound legal challenge is the question of statehood itself. The Montevideo Convention of 1933, a cornerstone of international law, defines a state as having four criteria: (a) a defined territory; (b) a permanent population; (c) a government; and (d) the capacity to enter into relations with other states.

What happens when the first criterion—a defined territory—is completely lost to the sea? Does a nation like Tuvalu or the Marshall Islands cease to be a state if its landmass becomes uninhabitable or disappears entirely? The implications are staggering. If statehood is extinguished, so too are a nation’s seat at the UN, its sovereignty, its cultural heritage as a legal entity, and its ability to advocate for its people on the world stage.

The emerging consensus, which the declaration will likely seek to solidify, is an affirmation of the “presumption of the continuation of statehood.” This principle would argue that once statehood is established, it should not be lost due to climate change-induced territorial loss, which is an event beyond the state’s control. Proponents argue that statehood is a political and social construct, not just a physical one. A nation could potentially exist as a “state-in-exile” or a “deterritorialized state,” with its government functioning from another country and its population dispersed, yet still retaining its legal personality and rights.

Human Rights and the Looming Crisis of Climate Displacement

Underpinning all these legal debates is the human dimension. Millions of people living in low-lying areas face displacement. However, international law currently lacks a clear framework for protecting “climate refugees.” The 1951 Refugee Convention applies only to those fleeing persecution, not environmental disasters.

The declaration will be an opportunity to articulate the duties of states in this context. It could affirm the human rights of those affected, including:

• The Right to Life: As established in a landmark 2020 ruling by the UN Human Rights Committee in the case of Ioane Teitiota v. New Zealand, states may violate the right to life by deporting individuals to places where climate change impacts pose a real and foreseeable risk.
• The Right to Self-Determination and Culture: Forcing a population to relocate threatens to dissolve unique cultures, languages, and traditional ways of life tied to ancestral lands.
• The Principle of State Responsibility: The consultation will undoubtedly hear arguments based on the principle of “common but differentiated responsibilities,” suggesting that major historical emitters have a greater obligation to assist affected populations, including through financing planned relocations and adaptation measures.

A Chorus of Diverse Voices: Who is Shaping the Declaration?

The strength of the final declaration will depend on the breadth and depth of the input received. The consultation process is designed to bring a wide range of perspectives to the table, each with its own priorities and concerns.

The Frontline: Small Island Developing States (SIDS)

For the 39 nations in the Alliance of Small Island States (AOSIS), this is not a theoretical debate but a matter of national survival. Their input is driven by an urgent need for legal certainty. They are the primary advocates for fixing maritime boundaries and ensuring the continuation of statehood. For them, a strong declaration is a tool for survival, a legal shield against the encroaching sea. Their submissions will be grounded in their lived experience and their long-standing moral leadership in global climate negotiations.

Coastal Nations and Global Economic Interests

Beyond SIDS, numerous other countries with extensive, low-lying coastal zones—such as Bangladesh, Vietnam, the Netherlands, and Egypt—have a significant stake. Their concerns are focused on protecting vast populations, critical infrastructure (ports, cities, industrial centers), and valuable coastal ecosystems. Their input will likely emphasize the need for international cooperation on adaptation finance, technology transfer, and the development of legal frameworks for managing cross-border displacement and shared resources like transboundary rivers, which will be affected by saltwater intrusion.

The Scientific Community’s Foundational Input

The credibility of the entire process rests on a foundation of robust science. The IPCC and other scientific bodies provide the indispensable data on which legal principles must be built. Their submissions will detail the latest climate models, sea level rise projections under different emissions scenarios, and the physical realities of coastal erosion, inundation, and salinization. This evidence is crucial for establishing the foreseeability of the harm and for grounding legal arguments in objective reality, moving the discussion from the political to the empirical.

Civil Society, Indigenous Peoples, and the Call for Climate Justice

Civil society organizations, youth groups, and representatives of Indigenous Peoples bring a critical focus on human rights and climate justice. Their input will ensure that the declaration is not just a technical legal document but a people-centric one. They advocate for a rights-based approach, emphasizing the principles of intergenerational equity and the protection of vulnerable communities. Indigenous Peoples, in particular, will offer unique perspectives on the spiritual and cultural connections to land and sea, arguing for legal solutions that respect their right to self-determination and cultural preservation even in the face of relocation.

The Path Forward: Navigating Challenges to Seize an Opportunity

The journey from consultation to a globally endorsed declaration is fraught with challenges, but it also presents a historic opportunity to strengthen the international legal order in the face of the climate crisis.

Building Consensus in a Fractured World

The primary challenge will be forging consensus in a politically divided world. The familiar fault lines of climate negotiations—between developed and developing nations, major emitters and vulnerable states—will undoubtedly surface. Questions of finance, historical responsibility, and loss and damage will be interwoven with the legal discussions. Navigating these political dynamics to arrive at a set of universally acceptable principles will require skilled diplomacy and a shared commitment to a multilateral solution.

From Principles to Practice: What Can the Declaration Achieve?

A successful declaration has the potential to be a powerful catalyst for action. By establishing clear legal principles, it can:

• Provide Stability: Offer legal predictability for maritime boundaries, securing economic rights and preventing future disputes.
• Affirm Sovereignty: Uphold the continuation of statehood for the most vulnerable nations, ensuring their voice is not extinguished.
• Protect People: Strengthen the legal basis for protecting the rights of climate-displaced persons and create momentum for a more comprehensive international protection framework.
• Mobilize Action: Serve as a powerful political tool to mobilize financial resources for adaptation and to underscore the urgency of mitigating greenhouse gas emissions.

A Race Against the Tide: The Urgency of Now

Ultimately, this global consultation is a race against the tide. The slow, methodical pace of international law-making is running up against the rapid, accelerating pace of climate change. The waters are rising, coastlines are shrinking, and people are already being displaced. The questions being debated are not for the next century; they are for this decade.

The world is watching to see if the international community can rise to the occasion, moving beyond rhetoric to craft a declaration that is not only legally sound but also just, equitable, and effective. The outcome of this process will be a testament to our collective ability to adapt our laws and institutions to a changing planet, providing a measure of security and hope for the frontline communities facing the existential threat of a rising sea.