Fundamentally biofuels must deliver significant greenhouse gas reductions compared to the fossil based fuels that they are being substituted for, as it is on this belief that consumer demand for biofuels is soaring worldwide. Sugarcane based bioethanol remains one of the best performing commercially available biofuels. Even with transport of bioethanol from Brazil to New Zealand taken into consideration, the energy output of Brazilian ethanol is still better than fossil based petrol.
