A new report released by the U.N. University, CARE International and Columbia University states that climate change is already displacing people from their homes and could lead to the greatest human migration in history. Estimates on the total number of potential migrants vary and this report cites predictions from the International Organization for Migration that 200 million people will be displaced by 2050. Some estimates claim that as many as 700 million people could be forced to migrate due to environmental pressures caused by climate change.
Climate change may displace up to 200 million
By Moni Basu
June 10, 2009