Companies in Japan are currently developing some biofuels which can be burned together with coal, as to cut the emissions of carbon dioxide. This might help the power plants lower the emissions without buying new equipment.  Idemitsu Kosan, an oil distributor in Japan, has recently developed a new type of pellet fuel made from compressed wood waste carbonized at a low temperature that can be burned in coal-fired plants. Plant-based biomass can be considered a carbon-neutral fuel, since burning it just releases the CO2 previously absorbed by the plants, Nikkei Asian Review reported ...