A secret World Bank report obtained by The Guardian concludes that biofuel production is responsible for a 75% increase in global food prices.
"The damning unpublished assessment is based on the most detailed analysis of the crisis so far, carried out by an internationally-respected economist at global financial body.
The figure emphatically contradicts the US government's claims that plant-derived fuels contribute less than 3% to food-price rises. It will add to pressure on governments in Washington and across Europe, which have turned to plant-derived fuels to reduce emissions of greenhouse gases and reduce their dependence on imported oil.
Senior development sources believe the report, completed in April, has not been published to avoid embarrassing President George Bush.
"It would put the World Bank in a political hot-spot with the White House," said one yesterday."