Environmental migrants are people who are forced to leave their home region due to sudden or long-term changes to their local or regional environment. These changes compromise their well-being or livelihood, and include increased drought, desertification, sea level rise, and disruption of seasonal weather patterns (such as monsoons [1] ). Though there is no uniform, clear-cut definition of environmental migration, the idea is gaining attention as policy-makers and environmental and social scientists attempt to conceptualize the potential social effects of climate change and other environmental degradation, such a deforestation or overexploitation.
"Environmental migrant" and "climate migrant" (or "climate refugee") are used somewhat interchangeably with a range of similar terms, such as ecological refugee, environmental refugee, forced environmental migrant, environmentally motivated migrant, environmentally displaced person (EDP), disaster refugee, environmental displacee, eco-refugee, ecologically displaced person, or environmental-refugee-to-be (ERTB). [2] The distinctions between these terms remain contested.
The vast majority of people fleeing environmental distress migrate over short distances, often temporarily. Moreover, the refugees aren't leaving their homes because of fear they will be persecuted, or because of "generalized violence or events seriously disturbing public order." [3] Even though the definition of who is a refugee was expanded since its first international and legally binding definition in 1951 people who are forced to flee due to environmental change are still not offered the same legal protection as refugees. [4]
The term "environmental refugee" was first proposed by Lester Brown in 1976. [5] The International Organization for Migration (IOM) proposes the following definition for environmental migrants: [6]
"Environmental migrants are persons or groups of persons who, for compelling reasons of sudden or progressive changes in the environment that adversely affect their lives or living conditions, are obliged to leave their habitual homes, or choose to do so, either temporarily or permanently, and who move either within their country or abroad."
Climate migrants are a subset of environmental migrants who were forced to flee "due to sudden or gradual alterations in the natural environment related to at least one of three impacts of climate change: sea-level rise, extreme weather events, and drought and water scarcity." [7]
The International Organisation for Migration proposes three types of environmental migrants:
Other scholars have proposed various other types of migrant including:
There have been a number of attempts over the decades to enumerate environmental migrants and refugees. Jodi Jacobson (1988) is cited as the first researcher to enumerate the issue, stating that there were already up to 10 million 'Environmental Refugees'. Drawing on 'worst-case scenarios' about sea-level rise, she argued that all forms of 'Environmental Refugees' would be six times as numerous as political refugees. [18] By 1989, Mustafa Tolba, Executive Director of United Nations Environment Programme, was claiming that 'as many as 50 million people could become environmental refugees' if the world did not act to support sustainable development. [19]
In the mid-1990s, British environmentalist, Norman Myers, became the most prominent proponent of this 'maximalist' school (Suhrke 1993), noting that "environmental refugees will soon become the largest group of involuntary refugees". [20] Additionally, he stated that there were 25 million environmental refugees in the mid-1990s, further claiming that this figure could double by 2010, with an upper limit of 200 million by 2050 (Myers 1997). [21] Myers argued that the causes of environmental displacement would include desertification, lack of water, salination of irrigated lands and the depletion of biodiversity. He also hypothesised that displacement would amount to 30m in China, 30m in India, 15m in Bangladesh, 14m in Egypt, 10m in other delta areas and coastal zones, 1m in island states, and with otherwise agriculturally displaced people totalling 50m by 2050. [22] More recently, Myers has suggested that the figure by 2050 might be as high as 250 million. [23]
Norman Myers is the most cited researcher in this field, who found that 25 million environmental migrants existed in 1995 in his work (Myers & Kent 1995), [22] which drew upon over 1000 sources. [24] However, Vikram Kolmannskog has stated that Myers' work can be 'criticized for being inconsistent, impossible to check and failing to take proper account of opportunities to adapt' (2008: 9). [25] Furthermore, Myers himself has acknowledged that his figures are based upon 'heroic extrapolation' (Brown 2008: 12). [26] More generally, Black has argued that there is 'surprisingly little scientific evidence' that indicates that the world is 'filling-up with environmental refugees' (1998: 23). [27]
Many environmental migrants originate from Small Island Developing States (SIDS), where the effects of rising sea levels, increasing natural disasters, and the depletion of fresh water supplies have significantly affected the habitability of these states. [28] Due to their vulnerability to climate change, SIDS have become increasingly uninhabitable, which has caused many environmental migrants to flee their countries in search of a safer environment. [29] In the future, the number of environmental migrants from these countries is projected to increase significantly due to the anticipated continuation of environmental disasters. [29] The countries face many financial, legal, and political barriers regarding environmental migration since they are low on resources and economic stability. [30] There are multiple islands within SIDS that are experiencing increasing levels of environmental migrants. Islands in the Pacific Ocean such as Kiribati, Vanuatu, and Fiji are in immediate danger from the threats of rising sea levels. [30] Other Caribbean Islands such as Barbados have dealt with a significant rise in environmental migrants due to climate-related challenges. [31]
There have been efforts by economically advanced countries to help the SIDS through international support mechanisms such as the Green Climate Fund and Adaptation Fund. [32] SIDS have also been active participants in the United Nations Framework Convention on Climate Change (UNFCCC) for making progress towards preventing migration issues and pushing for stronger policies. [29] In September 2014, the SIDS met in Apia, Samoa to form the SAMOA Pathway, a ten year plan that addresses climate change faced in the islands. [31] Political figures such as Mia Mottley emphasize the need for a major increase in investment and global support to address the limitations of SIDS and environmental migrants. [31]
Efforts to address the environmental migrants are also being made in other neighboring regions. In the Philippines, legislators are attempting to change the country's immigration policies to accommodate for environmental migrants that are fleeing from SIDS. [30] The proposed House Bill No. 10490 aims to amend the Philippine Immigration Act of 1940 to expand the criteria for refugee status beyond the traditional categories of persecution, religion, and politics to include climate change. [30]
The notion of 'environmental migrant' has been a part of popular culture at least since The Grapes of Wrath , a 1939 novel by John Steinbeck. [33]
Human migration is the movement of people from one place to another, with intentions of settling, permanently or temporarily, at a new location. The movement often occurs over long distances and from one country to another, but internal migration is the dominant form of human migration globally.
An internally displaced person (IDP) is someone who is forced to leave their home but who remains within their country's borders. They are often referred to as refugees, although they do not fall within the legal definitions of a refugee.
Forced displacement is an involuntary or coerced movement of a person or people away from their home or home region. The UNHCR defines 'forced displacement' as follows: displaced "as a result of persecution, conflict, generalized violence or human rights violations".
Environmental degradation is the deterioration of the environment through depletion of resources such as quality of air, water and soil; the destruction of ecosystems; habitat destruction; the extinction of wildlife; and pollution. It is defined as any change or disturbance to the environment perceived to be deleterious or undesirable. The environmental degradation process amplifies the impact of environmental issues which leave lasting impacts on the environment.
Land degradation is a process where land becomes less healthy and productive due to a combination of human activities or natural conditions. The causes for land degradation are numerous and complex. Human activities are often the main cause, such as unsustainable land management practices. Natural hazards are excluded as a cause; however human activities can indirectly affect phenomena such as floods and wildfires.
Development-induced displacement and resettlement (DIDR) occurs when people are forced to leave their homes in a development-driven form of forced migration. Historically, it has been associated with the construction of dams for hydroelectric power and irrigation, but it can also result from various development projects such as mining, agriculture, the creation of military installations, airports, industrial plants, weapon testing grounds, railways, road developments, urbanization, conservation projects, and forestry.
Norman Myers was a British environmentalist specialising in biodiversity and also noted for his work on environmental refugees.
African environmental problems are problems caused by the direct and indirect human impacts on the natural environment and affect humans and nearly all forms of life in Africa. Issues include deforestation, soil degradation, air pollution, water pollution, coastal erosion, garbage pollution, climate change, Oil spills, Biodiversity loss, and water scarcity. These issues result in environmental conflict and are connected to broader social struggles for democracy and sovereignty. The scarcity of climate adaptation techniques in Africa makes it the least resilient continent to climate change.
Ghoramara Island is an island 92 km south of Kolkata, India in the Sundarban Delta complex of the Bay of Bengal. The island is small, roughly five square kilometers in area, and is quickly disappearing due to erosion and sea level rise.
The Kampala Convention is a treaty of the African Union (AU) that addresses internal displacement caused by armed conflict, natural disasters and large-scale development projects in Africa.
Climate change is a critical issue in Bangladesh. as the country is one of the most vulnerable to the effects of climate change. In the 2020 edition of Germanwatch's Climate Risk Index, it ranked seventh in the list of countries most affected by climate calamities during the period 1999–2018. Bangladesh's vulnerability to the effects of climate change is due to a combination of geographical factors, such as its flat, low-lying, and delta-exposed topography. and socio-economic factors, including its high population density, levels of poverty, and dependence on agriculture. The impacts and potential threats include sea level rise, temperature rise, food crisis, droughts, floods, and cyclones.
Human rights and climate change is a conceptual and legal framework under which international human rights and their relationship to global warming are studied, analyzed, and addressed. The framework has been employed by governments, United Nations organizations, intergovernmental and non-governmental organizations, human rights and environmental advocates, and academics to guide national and international policy on climate change under the United Nations Framework Convention on Climate Change (UNFCCC) and the core international human rights instruments. In 2022 Working Group II of the IPCC suggested that "climate justice comprises justice that links development and human rights to achieve a rights-based approach to addressing climate change".
Water scarcity in Iran is caused by high climatic variability, uneven distribution of water, over exploitation of available water resources,and prioritization of economic development. Water scarcity in Iran is further exacerbated by climate change.
A refugee crisis can refer to difficulties and dangerous situations in the reception of large groups of forcibly displaced persons. These could be either internally displaced, refugees, asylum seekers or any other huge groups of migrants.
The effects of climate change on small island countries are affecting people in coastal areas through sea level rise, increasing heavy rain events, tropical cyclones and storm surges. These effects of climate change threaten the existence of many island countries, their peoples and cultures. They also alter ecosystems and natural environments in those countries. Small island developing states (SIDS) are a heterogenous group of countries but many of them are particularly at risk to climate change. Those countries have been quite vocal in calling attention to the challenges they face from climate change. For example, the Maldives and nations of the Caribbean and Pacific Islands are already experiencing considerable impacts of climate change. It is critical for them to implement climate change adaptation measures fast.
In Iraq, climate change has led to environmental impacts such as increasing temperatures, decreasing precipitation, land degradation, and water scarcity. Climate change poses numerous risks to human health, livelihoods, political stability, and the sustainable development of the nation. The combination of ecological factors, conflict, weak governance, and an impeded capacity to mitigate climate change, has made Iraq uniquely at risk to the negative effects of climate change, with the UN ranking them the 5th most vulnerable country to climate change. Rising temperatures, intensified droughts, declining precipitation, desertification, salinization, and the increasing prevalence of dust storms are challenges Iraq faces due in to the negative impacts of climate change. National and regional political instability and conflict have made it difficult to mitigate the effects of climate change, address transnational water management, and develop sustainably. Climate change has negatively impacted Iraq's population through loss of economic opportunity, food insecurity, water scarcity, and displacement.
Climate migration is a subset of climate-related mobility that refers to movement driven by the impact of sudden or gradual climate-exacerbated disasters, such as "abnormally heavy rainfalls, prolonged droughts, desertification, environmental degradation, or sea-level rise and cyclones". Gradual shifts in the environment tend to impact more people than sudden disasters. The majority of climate migrants move internally within their own countries, though a smaller number of climate-displaced people also move across national borders.
Natural disasters in Nigeria are mainly related to the climate of Nigeria, which has been reported to cause loss of lives and properties. A natural disaster might be caused by flooding, landslides, and insect infestation, among others. To be classified as a disaster, there is needs to be a profound environmental effect or human loss which must lead to financial loss. This occurrence has become an issue of concern, threatening large populations living in diverse environments in recent years.
Jane Alexandra McAdam is an Australian legal scholar, and expert in climate change and refugees. She is a Scientia Professor at the University of NSW, and is the inaugural Director of the Kaldor Centre for International Refugee Law. She was awarded an Order of Australia in 2021 for “distinguished service to international refugee law, particularly to climate change”.