How to Feed the 9 Billion

by Jean Blish Siers *

In a 2013 piece in the New York Times, one of my favorite food writers Mark Bittman wrote, “The world has long produced enough calories, around 2,700 per day per human, more than enough to meet the United Nations projection of a population of nine billion in 2050 … There are hungry people not because food is lacking, but because not all of those calories go to feed humans (a third go to feed animals, ...

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