Description:
Biofuels, in the use phase, emit the carbon that has been previously absorbed during plant growth. Inputs during cultivation and conversion need to be accounted for. However, the bulk of GHG emissions are related to land-use change. The carbon footprint varies considerably depending on the type of land converted, the type and yield of the feedstock (tonnes per hectare), as this figure shows. It is therefore key that any GHG analysis takes into account the entire life-cycle of biofuels, including impacts from land-use change.