The Census Bureau predicts that the nation's population will grow from 325.5 million today to 403.7 million by 2060 — and 96 percent of that increase of 78 million people is due to the current historically high level of immigration. "If we get climate change wrong there is a very real danger we shall see levels of mass migration as yet unparalleled," he said. The low-lying country has many residents that are at risk from a changing climate in the near future. The thematic working group on “Environmental change and … 164 million are migrant workers. Population growth in the United States is almost entirely driven by the federal government's immigration policy. How many climate refugees will there be in the future? The International Organization for Migration (IOM), as the leading intergovernmental migration agency, has been at the forefront of operational, research, policy and advocacy efforts, seeking to bring environmental migration to the heart of international, regional and national concerns in collaboration with its Member States, observers and partners. The relationship between the environment and human movement is complex, and for that reason there are a … Photograph by Turjoy Chowdhury, NurPhoto/Getty 143 Million People May Soon Become Climate Migrants According to Oxford-based environmental migration expert Norman Myers, when global climate change takes hold, “there could be as many as 200 million people overtaken by disruptions of monsoon systems and other rainfall regimes, by droughts of unprecedented severity and duration, and by sea-level rise and coastal flooding” (2008). Most of the numbers you may have heard about climate refugees are usually predictions. The term “environmental refugees” is one of the many phrases that are used to describe people who move due to changes in the environment around them. Currently, forecasts vary from 25 million to 1 billion environmental migrants by 2050, moving either within their countries or across borders, on … In 2019, only half a per cent of the world’s refugees were resettled. They are estimates of how many climate refugees there will be in the future, rather than how many there are now.. Jodi Jacobson (1988) is cited as the first researcher to enumerate the issue, stating that there were already up to 10 million 'Environmental Refugees'. The Environmental Migration Portal by IOM, features a searchable research database, initially based on the People on the Move in a Changing Climate: A Bibliography, published by IOM in collaboration with University of Neuchatel.The database also includes migration and environment country assessments published by IOM.. Environmental migrants do not fit neatly into either category, leading some scholars like Alexander Betts to call for an expansion of the international legal definition of a refugee to take account of the realities of climate change and to include people fleeing natural as well as man-made disasters, trying simply to survive . There are an estimated 38 million migrant children, three out of four international migrants are of working age, meaning between 20 and 64 years old. There have been a number of attempts over the decades to enumerate environmental migrants and refugees. Syria has been the main country of origin for refugees since 2014 and at the end of 2019, there were 6.6 million Syrian refugees hosted by 126 countries worldwide. A 2018 World Bank report estimated that by 2050, there would be 143 million climate change-driven migrants from the regions of Latin America, sub-Saharan Africa, and southeast Asia alone. This makes things even more complicated.