Climate change is leading to rising sea levels, and very soon this phenomenon is going to displace millions of people worldwide. The estimates range from 50 million to a billion refugees. Even the conservative estimate is much higher than the total number of refugees in the world today, including internally-displaced people.
https://p.dw.com/p/LsB7
Some inhabitants of Papua New Guinea will be displaced when their homes are submergedImage: Uwe Möller
