Twenty five million more children will be malnourished in 2050 due to effects of climate change, according to a report by the International Food Policy Research Institute (IFPRI). This study, the most comprehensive assessment of the impact of climate change on agriculture to date, compares the number of malnourished children in 2050 with and without climate change.

Climate Change: Impact on Agriculture and Costs of Adaptation
Food Policy Report 21. September 2009.