In the year 2100, up to 2 billion people - nearly a fifth of the world's population - could become climate change refugees due to rising ocean levels.
Kulinganiselwa ukuthi ngonyaka ka-2100, abantu abangaba yizigidi eziyizinkulungwane ezimbili (lokhu kuzoba yingxenye yesihlanu yabantu emhlabeni ngaleso sikhathi) bangaba ababaleki besimo sezulu, ikakhulu ngenxa yokwenyuka kwezinga lolwandle.