In the production of crops such as wheat, corn, palm oil and sugar beet for biofuel, the costs of phosphorus depletion outweigh the benefits of reduced CO2 emissions. In the international Ambio magazine published this week, researchers at Wageningen University, part of Wageningen UR, recommend revision of the policy objectives for mixing sustainable energy with biofuels, partly because there are better alternatives for such energy sources (sun, wind, biogas). The full article can be found on the website of Wageningen University.