CARE has released a new report to help policy makers understand
climate-related migration and displacement.The report was written by
CARE, the U.N. University's Institute for Environment and Human Security
(UNU-EHS) and Columbia University's Center for International Earth
Science Information Network (CIESIN). It was funded by the U.N. Refugee
Agency (UNHCR) and the World Bank, Social Dimension of Climate Change
Team.

http://www.care.org/getinvolved/advocacy/pdfs/Migration_Report.pdf