World Food Policy WFP Volume 4, No. 2, Spring 2018 | Page 16

World Food Policy
Figure 2.5. Water stress risk index
Source: Veolia Water North America and International Food Policy Research Institute (IF-
PRI). 2011. Sustaining growth via water productivity: 2030/2050 scenarios. Washington,
D.C. and Chicago, IL:Veolia Water North America and International Food Policy Research
Institute (IFPRI). http://growingblue.com/wp-content/uploads/2011/05/IFPRI_VEOLIA_
STUDY_2011.pdf
Figure 2.6. Impacts of climate change on global maize yield
using DSSAT simulations
Source: IFPRI DSSAT simulations.
2050. Currently about 2.5 billion people
live in water stressed areas, 22% of glob-
al GDP is generated in water-stressed
regions. The number of people in wa-
ter-stressed regions will nearly double
by 2050 and 45% of GDP will be pro-
duced in such regions.
2.4. Climate Change
Climate change is another significant
threat to agriculture and food security.
Climate change will reduce crop yields
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