Food Security

Crop Yields

Climate impacts on crop yields

Data Interpretation

Climate impacts on water availability and crop yields will be an important driver of climate mobility across Africa. Declining crop yields are associated with an increase in internal climate mobility away from the affected areas, while depressing longer distance, cross-border mobility.

Data Modelling

Five-year average water availability and crop production considers annual mean water discharge, annual crop yield, and annual mean total net primary productivity (in tons for maize, wheat, rice, soybeans, cassava/tropical roots, groundnut, millet/tropical cereals, field pea/pulses, rapeseed, sugarcane, sugarbeet/temperate roots, and sunflower) per grid cell. Crop production is a function of rainfall, temperature, CO2 concentrations, irrigation, and other management practices that are incorporated in the models of the Inter-Sectoral Impact Model Intercomparison Project (ISIMIP) to provide projections of future population distributions. 


ISIMIP2b (Data range: 1990-2050)

Global Centre for Climate MobilityAfrica Climate Mobility Initiative