BY SHENGGEN FAN
The world has made tremendous progress in improving food security and nutrition. The proportion of people experiencing hunger fell from 14.7 percent to 10.6 percent between 2000 and 2015. And we’ve made progress on undernutrition, with the prevalence of child stunting dropped from 40 percent to 23 percent between 1990 and 2015. Food systems—the technical, economic, social and environmental processes and actors through which we feed the world’s population—have played a huge role in this progress. (Photo © GlobalDev)
