A new and innovative possible bio-fuel has been developed using wood chips by researchers from the University of Georgia. Little pieces of wood are heated in an oxygen-free environment to produce charcoal and gas. The gas can then be condensed into a liquid bio-oil which can then be processed into a fuel which could be mixed like bio-diesel. The charcoal might be able to be used as a fertilizer. Since much of the carbon from the wood or plant matter becomes charcoal, rather than part of the fuel, if the charcoal is put back into the ground as fertilizer. This fact would make this fuel net carbon negative.