http://www.nature.com/news/2009/090827/full/news.2009.871.html
Climate change exacts a high price
Costs of adapting to a warming world could be much greater than expected.
The global cost of adapting to climate change has been grossly underestimated, according to a study published this week. Although it doesn't provide concrete new estimates, the report suggests that the total cost of adapting to climate change could be at least 2–3 times more than the previous estimate from the United Nations Framework Convention on Climate Change (UNFCCC). That figure, published in 2007, suggested that the annual cost from 2030 would be between US$49 billion and $171 billion.
