Sydney Morning Herald: BIOFUELS have forced global food prices up by 75 per cent - far more than previously estimated - a confidential World Bank report reveals. The damning, unpublished, assessment is based on the most detailed analysis of the crisis so far, carried out by an internationally respected economist at the global financial body. The figure emphatically contradicts the United States Government’s claims that plant-derived fuels contribute less than 3 per cent to food price rises. It will add to …