 The report was commissioned by the Secretary of State for Transport in response to growing concern about the impact of rising global demands for biofuels on food prices, biodiversity and greenhouse gas emissions.A growing body of academic research suggested that biofuels would effectively displace agricultural production and cause damaging land-use change in other parts of the world.This led to calls for a moratorium on biofuels policies, particularly from NGOs, whilst the agricultural and biofuels sectors questioned the conclusions of the research and modelling.