supply below world food demand in 2008 and cause food riots all over the world. Between 2004 and 2007 the world maize harvest increased by fifty-one million tonnes, but fifty million tonnes went into ethanol, leaving nothing to meet the increase of demand for all other uses of thirty-three million tonnes: hence the price rose. The poor, remember, spend 70 per cent of their incomes on food. In effect, American car drivers were taking carbohydrates out of the mouths of the poor to fill their tanks.
