As many as a billion people could lose their homes by 2050 because of the devastating impact of global warming, scientists and political leaders have been told.
Delegates at a climate change conference hosted by a top British think tank heard last night that the steady rise in temperatures around the planet could trigger mass migration on unprecedented levels.
Hundreds of millions could be forced to move because of water shortages and crop failures in most of Africa, as well as in central and southern Asia and South America, the conference in London was told. There could also be an effect on levels of starvation and on food prices as agriculture struggles to cope with growing demand in increasingly arid conditions.
Rising sea levels could also cause havoc, and coastal communities in southern Asia, the Far East, the south Pacific islands and the Caribbean could be submerged.
North and west Africans could head towards Europe, and the southern border of the United States could come under renewed pressure from Central America.
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