Climate Refugee

International law does not recognise “climate refugees”, but millions of people are already being displaced by climate‑driven disasters. Weather‑related events cause over 21 million new displacements each year, and 84% of the world’s refugees live in climate‑vulnerable hotspots. The United Nations High Commissioner for Refugees (UNHCR) focuses on law and policy, operational support, and reducing its own environmental footprint, while displaced communities themselves are driving adaptation, from joint climate‑resilience efforts in Mauritania to solar‑powered refugee camps in Jordan.

The term “climate refugee” oversimplifies climate‑related mobility: most climate migration is internal, often involves constrained choice rather than forced flight and is driven by intertwined environmental, economic, and social factors. Creating a new refugee status would exclude many people in need, be legally unworkable, and risk weakening existing protections. Instead, the International Organization for Migration (IOM) recommends using existing migration laws and human‑rights‑based approaches, expanding regular pathways such as humanitarian visas and temporary protection, and focusing on prevention through stronger climate action.

Climate‑related disasters now displace three times more people each year than conflict, and the IOM has helped bring climate mobility into global agreements such as the Paris Agreement and the Global Compact for Migration (GCM). The GCM provides a shared framework for safe and cooperative migration governance and recognises the multiple causes of climate‑related movement. Its implementation is supported by the UN Network on Migration, coordinated by IOM.

Climate refugees are described as people forcibly displaced by climate‑driven disasters or environmental degradation, yet existing legal frameworks cannot protect them. Climate impacts mix with economic and social drivers, most displacement is internal, causation is hard to prove, and debates over climate‑migration links have stalled progress. These gaps leave people exposed to secondary harms such as joblessness and resource competition and complicate distinctions between internal and cross‑border movement.

The concept of “petro‑persecution” reframes climate‑driven uninhabitability as systemic harm rooted in fossil‑fuel dependence. Proposed reforms include creating a new climate‑refugee convention or amending the 1951 Convention, linking habitability research to resettlement plans, recognising climate‑induced displacement as loss and damage under the Warsaw Mechanism, and establishing insurance pools to compensate affected and host countries, with higher premiums for states with greater historical emissions.(4)

Climate change is already recognised as a human‑rights issue for migrants and internally displaced people. UN resolutions and the GCM call for protection, disaster‑risk reduction, and safe, regular pathways. Most climate‑related mobility will remain internal, but when people later cross borders due to loss of livelihoods or essential services, risks of trafficking, forced labour, and gender‑based violence increase. Legal and policy gaps can be addressed through stronger climate action, human‑rights‑based approaches, better data, and expanded safe pathways.

People are increasingly being forced to move because of the climate crisis, sometimes suddenly through floods or wildfires, sometimes after years of slow‑onset pressures like drought or rising seas. Many others cannot leave due to disability, lack of resources, or deep personal ties. Climate‑driven journeys vary widely and can involve dangerous routes and political barriers, yet those who cross borders receive no formal protection. Meeting this reality requires rights and services for internally displaced people, safe and legal pathways for those who must move, political recognition of climate‑related protection needs, loss‑and‑damage finance, and more empathetic public attitudes.

Climate‑induced displacement is rising fast, yet international law still offers no formal protection because the 1951 Refugee Convention does not recognise climate harm. Existing frameworks such as the Paris Agreement, the Global Compact for Migration and regional schemes like the Kampala Convention or New Zealand’s Pacific Access Category provide only partial or non‑binding protections. Courts and human‑rights bodies are beginning to fill gaps by recognising climate harm as relevant to rights such as life, housing, and cultural survival. Proposed reforms include clearer definitions, expanding non‑refoulement to cover severe environmental risk, integrating climate displacement into human‑rights treaties, and creating funding and insurance mechanisms based on collective responsibility.

Climate refugee narratives can misrepresent and disempower climate‑vulnerable communities by framing them as passive victims rather than people with long histories of mobility, resilience, and cultural identity. Pacific voices from places like the Carteret Islands, Kiribati, and Tuvalu often reject the label because it oversimplifies complex realities, reinforces Western crisis imagery, and sidelines political, cultural, and territorial rights. Mobility is already part of life in many island societies, and the real threat is the potential loss of land and self‑determination, not movement itself. Effective policy must centre community perspectives and avoid treating mobility as a failure to adapt.

Australia has created a first‑of‑its‑kind climate mobility pathway for Tuvalu, offering 280 special visas per year under the Falepili Union treaty, which also includes support for sea walls and allows Tuvaluans to live and work in Australia as climate impacts worsen. Nearly half of Tuvalu’s 10,000 citizens applied in the first week, reflecting the country’s extreme vulnerability to sea‑level rise, yet both governments avoid language implying Tuvalu might disappear. At the same time, the treaty gives Australia significant influence over Tuvalu’s security arrangements, raising questions about sovereignty and the long‑term implications of climate‑driven mobility.

The International Court of Justice has affirmed that states have non‑refoulement obligations when returning someone would expose them to a real risk of irreparable harm from climate‑related threats to life, drawing on the Human Rights Committee’s reasoning in Teitiota v. New Zealand. Although non‑refoulement traditionally applies to persecution under the Refugee Convention, this interpretation confirms that severe climate impacts can also trigger protection under human rights law.