I understand a railway locomotive generates about 4 MW of power. Also understand that an area of about 130 acres of trees (high density) can generate 1 MW of power from a wood-biomass based power generator. As railways normally have a lot of land, can not the land adjoining the tracks be used to grow trees which can then be burned inside the locomotive (a la steam engines) and thus power the train. The waste heat produced by the steam engine can be used by vapor adsorption chillers to provide air-conditioned travel for passengers. This would make railways carbon-neutral and maybe reduce fuel costs in the long run. Is this feasible?