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). 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." 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.
The term "environmental refugee" was first proposed by Lester Brown in 1976. The International Organization for Migration (IOM) proposes the following definition for environmental migrants:
"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.