This story in The New York Times is scary and offers just another reason to stop playing around and curb our emissions:
There could be 200 million of these climate refugees by 2050, according to a new policy paper by the International Organization for Migration, depending on the degree of climate disturbances. Aside from the South Pacific, low-lying areas likely to be battered first include Bangladesh and nations in the Indian Ocean, where the leader of the Maldives has begun seeking a safe haven for his 300,000 people. Landlocked areas may also be affected; some experts call the Darfur region of Sudan, where nomads battle villagers in a war over shrinking natural resources, the first significant conflict linked to climate change.