There used to be three Fs in farming: Food, Feed and Fibre.
Now there are three more sources of income: Industrial feedstocks, Fuel, Farm-aceuticals. Farmers have lots of choices about what to grow and where to grow it. Result: price of corn going up, and crises in Germany and Mexico as beer, corn prices soar.
"There will be more pressure on food prices, because farmers have more alternatives."
Plus: more pressure on food prices because Chinese (and other developed nations) are consuming more calories (especially meat - which takes six times as much input per calorie as grains).
Says Worzel: "Think about what this means to you before it happens to you."