With 19% of the world’s population but only 7% of its arable land, China is in a bind: how to feed its growing and increasingly affluent population whWith 19% of the world’s population but only 7% of its arable land, China is in a bind: how to feed its growing and increasingly affluent population whWith 19% of the world’s population but only 7% of its arable land, China is in a bind: how to feed its growing and increasingly affluent population wh