Commission on Climate Change and Development published in March  2009 a report Accommodating Migration to Promote Adaptation to Climate Change that talks about climate change and migration (authors Jon Barnett and Michael Webber). It explains the ways in which climate change may increase future migration, and the risks associated with such migration. It also examines the way some of the migration that will arise from climate change may enhance the capacity of communities to adapt to climate change. The authors suggest that the serious risks arising from migration exacerbated by climate change can be avoided through careful policy. The report describes some policy responses that could minimize the risks associated with migration in response to climate change, and to maximize the ways in which migration can increase adaptive capacity.