Farmers in southern Africa use composted food scraps, human waste, and livestock manure for many purposes, from enriching soil to feeding fish.
In sub-Saharan Africa where nearly a third of the population is hungry, over a quarter of food produced is lost to spoilage. And the hundreds of millions of livestock on the continent are responsible for degrading almost half of crop land on the continent, which makes up over one-third of overgrazed lands worldwide.
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