If we look further into the future there is a major shift toward electrical options to displace transportation fuels. Of course the emissions from many electrical utilities are not carbon neutral or negative and still emitting fossil emissions such as natural gas as the feedstock. Using wood, even for a fuel is carbon negative taking carbon out of the air and at least displacing fossil fuel emissions. As we use up the sources of wood there is less feedstock and more pressure to displace jet fuel emissions. That increases the importance of cleaning up all the wood residual sources so they can be made into products that displace more emissions than just using them for their fuel value. Are short rotation higher yielding wood species the best answer for jet fuel? Why would this feedstock not still be better used as products that have a higher leverage to displace fossil intensive products? Composite wood products should be able to displace fossil intensive products if they are clean enough.

The snail race is on to find a substitute for fossil jet fuels that are not better that using forest and wood residuals even if they can be cleaned up considerably from todays standards. Cleaner residuals, more recycling, and higher yields would all seem to have potential.