Imagine a world with as many as one billion people facing harsh climate change impacts resulting in devastating droughts and/or floods, extreme weather, destruction of natural resources, in particular lands, soils and water, and the consequence of severe livelihoods conditions, famine and starvation.
Although not yet based on definite scientific projections, the proven speed with which the process of climate change has been taking place, might lead to such a scenario by 2050. If so, 1 in 9 human beings would be on the move by then.
Currently, forecasts vary from 25 million to 1 billion environmental migrants by 2050, moving either within their countries or across borders, on a permanent or temporary basis, with 200 million being the most widely cited estimate, according to a 2015 study carried out by the Institute for Environment and Human Security of the United Nations University.
“This figure equals the current estimate of international migrants worldwide.”
Other specialised sources estimate that “every second, one person is displaced by disaster.” On this, the Oslo-based Norwegian Refugee Council (NRC) reports that in 2015 only, more than 19.2 million people fled disasters in 113 countries. “Disasters displace three to ten times more people than conflict and war worldwide.”