Climate Change Could Cost The World Over Half Trillion Dollars A Year By 2050: UN Report

Developing nations could need as much as $500 billion a year by 2050 to adapt to the effects of a warming climate, the United Nations said, significantly revising its earlier figure of $100 billion a year estimated by the U.N.'s Intergovernmental Panel on Climate Change (IPCC). The new figures were presented in the first ever Adaptation Gap Report released by the agency on Friday.