International Legal Responses to Climate Refugees: Bridging Normative Gaps

Abstract:

Climate change is displacing millions worldwide, yet international law lacks a coherent framework to protect “climate refugees”. Rising sea levels, desertification, and harsher weather patterns pose a particular danger to vulnerable countries like Kiribati, Bangladesh, or parts of Sub-Saharan Africa. The 1951 Convention and 1967 Refugee Protocol are already circumscribed within persecution-related displacement, failing to encompass environmental displacement. Non-refoulement provisions within human rights treaties such as ICCPR offer some remedy within “non-refoulement,” typified by Ioane Teitiota vs. New Zealand, but this remedy is piecemeal and inadequate. This article will identify normative deficiencies within both these bodies of law, sovereignty issues, as well as the danger of a global phenomenon of climate change-related statelessness. The article will conclude that safeguarding climate refugees is not only a humanitarian necessity but a legal obligation essential to equity and justice in international law.  

Introduction : 

Climate change poses an increasing threat to human security in the twenty-first century. “Climate refugees” have emerged due to rising sea levels, desertification, and climate-related disasters.1 But the current international framework fails to adapt to this reality. The Convention relating to the Status of Refugees, the cornerstone of the framework of refugee law, does not include environmental displacement as a reason to claim refugee status.2 This normative gap leaves millions without legal protection, undermining both human rights and the principle of equity. This article examines how international law currently addresses climate‑induced displacement, identifies the gaps, and explores possible legal pathways to bridge them. 

Defining Climate Refugees : 

Climate refugee is a widely used term, especially in the context of policy and research, although it is not recognized in international law as a formally distinct concept. Persons displaced in the context of disasters and climate change is the preferred terminology used by the United Nations High Commissioner for Refugees, as it signifies the lack of a specific legal status.3 Unlike the traditional concept of a refugee, climate refugees are displaced because of environmental issues that are none of their making. 

Current International Legal Framework: 

Refugee Law Limitations : The 1951 Refugee Convention defines a refugee as someone with a “well‑founded fear of persecution” for reasons of race, nationality, membership of a particular social group, religion, or political opinion.4 Climate displacement does not meet these criteria. Environmental degradation alone has never been sufficient grounds for refugee status. This was affirmed in Ioane Teitiota v NewZealand (UN Human Rights Committee, 2020), 5where the Committee acknowledged the threat of climate change but upheld deportation, underscoring the Convention’s limitations in addressing environmental displacement. 

Human Rights Law : Human rights treaties provide broader coverage. The International Covenant on Civil and Political Rights (ICCPR) prohibits returning individuals if their right to life is at risk.6In Teitiota, the Human Rights Committee suggested that non‑refoulement obligations could apply in serious climate‑related cases. Similarly, the International Covenant on Economic, Social and Cultural Rights (ICESCR) links displacement to rights such as housing, health, and food, offering indirect protection for climate‑affected populations.7 

Right to Development : The 1986 UN Declaration on the Right to Development recognizes development as a human right.8 Climate displacement undermines this right, depriving affected communities of livelihoods, education, and social stability. Incorporating the right to development into protections for climate refugees would strengthen the international legal framework. 

Normative Gaps in International Law: 

Absence of Binding Framework: There are no direct treaties pertaining to climate refugees. Some treaties cover climate refugees partially, but they are ambiguous and impractical.9 

Sovereignty Concerns : States are reluctant to broaden definitions of refugees, concerned about new responsibilities. Sovereignty limits collaborative response, especially on burden sharing.10 

Burden-Sharing and Equity : Countries which are developing lack the capacity to handle big migrations. Nevertheless, developed nations, which have tended to be responsible for higher emissions, are opposed to being bound by commitments.11 Statelessness : When whole areas become uninhabitable, there is a danger of people being denied nationality. The law of statelessness (1954 & 1961 Conventions) is not adequate with regard to climate change-induced statelessness.12 

Case Studies: 

Pacific Islands (Kiribati, Tuvalu) :The low-lying island nations face survival issues due to rising sea levels. Kiribati has already bought a plot of land in Fiji. The people might become stateless if they cannot live on their lands, thus raising various issues related to sovereignty and citizenship.13 

Bangladesh : Flash floods and cyclones cause displacements of millions every year. Internal displacements challenge the urban infrastructure, while international displacements to India create legal and political tensions.14 

Sub-Saharan Africa :The desertification experienced by the countries of the Sahel causes the population to move, and this can contribute to conflicts. Such events emphasize the relationship between climate change and security.15 

Proposed International Legal Responses: 

Expanding Refugee Definition :Although it is hard to change the 1951 Refugee Convention to incorporate environmental displacement, regional conventions like the OAU Refugee Convention of 1969 embrace broader definitions.16 

New International Treaty: A specific treaty could define obligations, sharing, and standards of protection similar to other instruments on statelessness and internally displaced persons.17 Regional Agreements : Organizations such as the Pacific Islands Forum, African Union, and ASEAN might establish protocols specific to regional displacement. 18 

Human Rights Integration :Courts and treaty bodies may extend pre-existing human rights obligations to address displacement linked to climate change. Integrating protection under the  Sustainable Development Goals (SDGs) will ensure consistency between development and human rights law. 

Role of International Institutions: 

UNHCR: Though very prudent in its role expansion, UNHCR has an important function in coordinating protection and advocacy.19 

United Nations General Assembly: The resolutions on climate change and displacement are normative and non-binding.20 

International Court of Justice (ICJ): Advisory opinions may help states understand their international obligations.21 

Regional Courts: The European Court of Human Rights and the Inter-American Court of Human Rights could develop case law connecting human rights abuses with climate change.22 

Critical Analysis : 

The reluctance to affirm the existence of climate refugees has more to do with politics than the impossibility of recognition from an international perspective. The international legal framework has always adapted to evolving challenges, ranging from statelessness following World War II to displaced persons within the 1990s. Climate displacement represents the next challenge. Extending the framework to include climate displacement and adaptation within the developmental agenda of nations has to be balanced between sovereignty and the broader responsibility to protect. Industrialized nations, for their part, have to come to terms with their past burden of emissions. 

Conclusion 

Climate refugees represent the convergence of the crisis of the environment, human rights, and the law. The present lack of a legal framework puts millions at risk, thereby adversely impacting the right to development and human dignity. The law needs to adapt to the present deficiency in a manner that fills the gap either by amending the current treaties, or perhaps by new treaty-making, or in the wider understanding of human rights. The need to protect climate refugees does not lie in moral obligations alone. In reality, the legal framework to protect climate refugees meets the standards of sovereignty, distributive balance, and equity. The gravity of the need to innovate the law to meet the crisis posed by climate change cannot remain overstated. 

Bibliography 

Primary Sources 

• Convention Relating to the Status of Refugees (adopted 28 July 1951, entered into force 22 April 1954) 189 UNTS 137. 
• Protocol Relating to the Status of Refugees (adopted 31 January 1967, entered into force 4 October 1967) 606 UNTS 267. 
• International Covenant on Civil and Political Rights (adopted 16 December 1966, entered into force 23 March 1976) 999 UNTS 171. 
• International Covenant on Economic, Social and Cultural Rights (adopted 16 December 1966, entered into force 3 January 1976) 993 UNTS 3. 
• Convention Relating to the Status of Stateless Persons (adopted 28 September 1954, entered into force 6 June 1960) 360 UNTS 117. 
• Convention on the Reduction of Statelessness (adopted 30 August 1961, entered into force 13 December 1975) 989 UNTS 175.
• OAU Convention Governing the Specific Aspects of Refugee Problems in Africa (adopted 10 September 1969, entered into force 20 June 1974) 1001 UNTS 45. ● UN General Assembly, Declaration on the Right to Development (4 December 1986) UNGA Res 41/128. 

Case Law 

• UN Human Rights Committee, Ioane Teitiota v New Zealand (CCPR/C/127/D/2728/2016, 2020) <https://juris.ohchr.org/Search/Details/2728>.
• European Court of Human Rights, Duarte Agostinho and Others v Portugal and 32 Other States (App no 39371/20, judgment 9 April 2024). 
• Inter‑American Court of Human Rights, Advisory Opinion OC‑23/17 on Environment and Human Rights (2017). 
• International Court of Justice, Legality of the Threat or Use of Nuclear Weapons, Advisory Opinion [1996] ICJ Rep 226. 

UN & Institutional Documents 

• UNHCR, Legal Considerations Regarding Claims for Protection Arising from Climate Change (2020) <https://www.unhcr.org/legal-considerations-regarding-claims-for-protection-arising-fr om-climate-change>. 
• UNHCR, Note on Climate Change and International Protection: UNHCR’s Mandate (12 December 2023) <https://www.unhcr.org/sites/default/files/2023-12/UNHCR%20note%20on%20climat e%20change%20international%20protection%20UNHCRs%20mandate%20Dec%20 2023.pdf>. 
• International Organization for Migration (IOM), Bangladesh Migration in the Context of Climate Change (2019). 

Secondary Sources 

• Jane McAdam, Climate Change, Forced Migration, and International Law (Oxford University Press 2012). 
• Walter Kälin, Conceptualising Climate‑Induced Displacement (Brookings Institution 2010). 
• Swaraj Pandey, Climate Refugees and International Law: Legal Protection in the Age of Displacement (IJIRL, 2025)<https://ijirl.com/wp-content/uploads/2025/07/CLIMATE-REFUGEES-AND-INTER NATIONAL-LAW-LEGAL-PROTECTION-IN-THE-AGE-OF-DISPLACEMENT.pd f>. 
• Shruti Kumari, Climate Refugees and International Law: Legal Protection in the Age of Displacement (The Legal Quorum, 2025) <https://thelegalquorum.com/climate-refugees-and-international-law-legal-protection in-the-age-of-displacement/>.

1Jane McAdam, Climate Change, Forced Migration, and International Law (Oxford University Press 2012).

2 Yuanyi Ma, The Plight of Climate Refugees Under the 1951 Refugee Convention (Harvard Undergraduate Law Review, Spring 2025). 

3 UNHCR, Legal Considerations Regarding Claims for Protection Arising from Climate Change (2020) <https://www.unhcr.org/legal-considerations-regarding-claims-for-protection-arising-from-climate-change>

4 Convention Relating to the Status of Refugees (adopted 28 July 1951, entered into force 22 April 1954) 189 UNTS 137.

5 UN Human Rights Committee, Ioane Teitiota v New Zealand (CCPR/C/127/D/2728/2016, 2020) <https://juris.ohchr.org/Search/Details/2728>. 

6International Covenant on Civil and Political Rights (adopted 16 December 1966, entered into force 23 March 1976) 999 UNTS 171.

7International Covenant on Economic, Social and Cultural Rights (adopted 16 December 1966, entered into force 3 January 1976) 993 UNTS 3. 

8 UN General Assembly, Declaration on the Right to Development (4 December 1986) UNGA Res 41/128. 

9 UNHCR, Legal Considerations Regarding Claims for Protection Arising from Climate Change (2020) <https://www.unhcr.org/legal-considerations-regarding-claims-for-protection-arising-from-climate-change>

10 Jane McAdam, Climate Change, Forced Migration, and International Law (Oxford University Press 2012).

11 Walter Kälin, Conceptualising Climate-Induced Displacement (Brookings Institution 2010). 

12 Convention Relating to the Status of Stateless Persons (1954) 360 UNTS 117; Convention on the Reduction of Statelessness (1961) 989 UNTS 175. 

13 Republic of Kiribati, Kiribati Climate Change Migration Project (2014). 

14 International Organization for Migration (IOM), Bangladesh Migration in the Context of Climate Change (2019).

15 United Nations Environment Programme (UNEP), Climate Change and Security Risks in the Sahel (2018). 

16 OAU Convention Governing the Specific Aspects of Refugee Problems in Africa (1969) 1001 UNTS 45.

17 Walter Kälin, Conceptualising Climate-Induced Displacement (Brookings Institution 2010). 

18 Jane McAdam, Climate Change, Forced Migration, and International Law (Oxford University Press 2012).

19 UNHCR, Legal Considerations Regarding Claims for Protection Arising from Climate Change (2020) <https://www.unhcr.org/legal-considerations-regarding-claims-for-protection-arising-from-climate-change>.

20 UN General Assembly, Protection of Global Climate for Present and Future Generations of Humankind (UNGA Res 43/53, 1988).

21 International Court of Justice, Legality of the Threat or Use of Nuclear Weapons, Advisory Opinion [1996] ICJ Rep 226 (illustrating ICJ’s advisory role, applicable by analogy to climate obligations). 

22 European Court of Human Rights, Duarte Agostinho and Others v Portugal and 32 Other States (App no 39371/20, judgment 9 April 2024); Inter‑American Court of Human Rights, Advisory Opinion OC‑23/17 on Environment and Human Rights (2017).