The world will need to raise its food production by 60 to 70% to feed more than 9,000,000,000 people by 2050.

The amount by which irrigation typically improves farm yields: double

Average number of hectares of cultivated land needed to feed one person in 1961: 0.45 hectares

Average number of hectares of cultivated land needed to feed one person in 2006: 0.22 hectares

Post-harvest grain losses in Sub-Saharan Africa are estimated at $4 billion a year. This could feed 48,000,000 people people.

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Only four crops—rice, wheat, maize, and potatoes—provide more than 60% of human energy needs.

Courtesy Food and Agriculture Organization of the United Nations.