Physorg: Biofuels must not deprive the world’s poor of food, a senior European official said, as he proposed a greater focus on second-generation biofuels that would be more environmentally friendly. Guenter Verheugen, a vice president of the European Commission, was speaking against a background of growing doubts about whether the European Union should continue a policy of elevating biofuels to an environmental priority. “It makes no sense to make car fuel from plants that ought …