This briefing demonstrates that biofuels are a false solution for the aviation industry. The social and environmental impacts of current biofuels can be devastating: they cause deforestation, food price rises, hunger, poverty, biodiversity loss and they often produce more GHG emissions than the fossil fuels they replace. Biofuels present the aviation industry with a convenient blind alley, facilitating the industry’s expansion plans and avoiding pressure to reduce their fuel use and diverting political attention from the real need to cut air travel in order to reduce climate change.