US must stop promoting biofuels to tackle world hunger, says thinktank | Environment | guardian.co.uk
http://www.guardian.co.uk/environment/2011/oct/11/us-biofuels-world-hunger-thinktank
“Biofuel subsidies should be curtailed in order to minimise biofuels’ contribution to volatility in food markets. It also means that biofuel mandates should be removed.”