The Next Breadbasket?

How Africa could save the world—and itself
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It’s been 41 years since Paul Ehrlich predicted imminent mass starvation, in his 1968 jeremiad, The Population Bomb. In the years that followed, a green revolution drove crop production rapidly upward, while population growth slowed dramatically; Ehrlich’s bomb, rather conspicuously, failed to go off.

Nonetheless, we’re still multiplying—global population is on track to reach 9.1 billion by 2050, up from 6.8 billion today. And the green revolution seems to have run its course: rice yields, for instance, are growing at only 1 percent a year, down from 2.3 percent in the 1960s, 1970s, and 1980s. For the past several years, grain production has not kept up with demand; if we are to put enough food on the table in the coming decades, something big will need to change.

Much of the world’s arable land is being farmed already, so the lion’s share of the increase will need to come through higher yields. In many places, yields can increase—if prices rise high enough to make investment in more-intensive agriculture worthwhile. Still, much of the developed world is approaching the ceiling of what is cheaply possible. Sub-Saharan Africa, despite its long history of food insecurity, is one place where yields could increase dramatically; agricultural basics such as good seed and fertilizer would go far in a region that the green revolution bypassed. “We could increase yields in sub-Saharan Africa threefold tomorrow with off-the-shelf technology,” says Kenneth Cassman, a well-regarded agronomist who researches potential yields. The problem is the continent’s long history of corruption, poor infrastructure, and lack of market access.

Agricultural investment in Africa—and in a few other high-potential places such as Ukraine and Russia—may be the world’s best bet for keeping food plentiful and cheap. This investment could bring other benefits too; the World Bank estimates that agricultural development is twice as effective at reducing poverty as other sources of growth. In Asia, as cereal yields rose, poverty rates plummeted. Investment in Africa’s agriculture—by donors, farmers, and African governments—may allow the continent to feed the world and save itself.

Elizabeth Chiles Shelburne is a writer based in Boston.
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Elizabeth Chiles Shelburne is a writer based in Boston.

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