Europe is already giving up on biofuels.
"Even in the 'best-case scenario', biofuels will only be able to achieve a 3% reduction in energy-related CO2 emissions by 2050, thus failing to reduce petroleum fuel consumption, states a new report by the OECD.
The study, which is to be presented to ministers and government experts from the OECD's 30 member states on 11-12 September, adds that even this small benefit would come at a huge cost because "without subsidies, most biofuels cannot compete on price with petroleum products in most regions of the world".
It explains that in the US, for example, around $7 billion is spent each year on support to ethanol, so that each tonne of carbon dioxide that is avoided in fact costs over $500 in taxpayers' money. In the EU, the cost could be up to ten times higher, add the authors.
The report criticises current government policy bias towards biofuels, saying that subsidies and tariff-protection measures will drive land owners to divert land from food or feed production to the production of energy biomass, thereby driving up food prices.
"As long as environmental values are not adequately priced in the market there will be powerful incentives to replace natural ecosystems such as forests, wetlands and pasture land with dedicated bio-energy crops," states the study, concluding that subsidies should be phased out - with the money reinvested in research on second-generation biofuels.
The report deals a blow to the EU's recently-agreed goal of ensuring that biofuels represent 10% of all transport fuels by 2020 (EurActiv 11/01/07), arguing: "Current biofuel support policies place a significant bet on a single technology despite the existence of a wide variety of different fuels and power trains that have been posited as options for the future. National governments should cease to create new mandates for biofuels and investigate ways to phase them out, preferably by replacing them with technology-neutral policies such as a carbon tax. Such policies will more effectively stimulate regulatory and market incentives for efficient technologies," concludes the report."