Agence France-Presse: An internal European Commission study, seen by AFP Friday, criticises an EU plan to boost the use of biofuels in transport, concluding that their costs outweigh the benefits. A Commission spokesman downplayed the study and insisted that the use of biofuels remained at the centre of its strategy to cut greenhouse gas emissions in Europe. The unpublished working paper by the Joint Research Centre, the European Commission’s in-house scientific body, makes uncomfortable reading …