Biofuels are all the substitute fuels produced from a non-fossil renewable organic material (biomass) such as wood, waste and alcohols, which are burned to provide energy. Biofuels also include ethanol, biodiesel and methanol. Biofuels do not add any new carbon to the atmosphere.
The term agrofuel is used to avoid confusion between products from organic agriculture and fuels of agricultural origin (from dedicated crops or agricultural waste). A biofuel of agricultural origin is of course not necessarily from organic agriculture.