> If US can grow 159 bushels of corn per acre, and African countries are currently at 29, why is the 15 year goal for African countries only 48 bushels per acre

> If US can grow 159 bushels of corn per acre, and African countries are currently at 29, why is the 15 year goal for African countries only 48 bushels per acre instead of somewhere close to the US? And getting yields to that point has come at the cost of an environmental and social catastrophe in the US. It's also uneconomically expensive - though it's easy not to notice because the government pays junk food companies to buy the excess and feed it to us at ultra-low prices. Why on earth would you want to inflict that on Africa too?