I must admit I have been always skeptical about bio-fuels. Growing corn or sugar cane to make fuel ? It may be "renewable", but it takes the land and resources out of agriculture in the world where hundreds of millions of people are starving. And is it any better than greenhouse gas emitting fossil fuels from oil and gas?
United Nations Energy Future Coalition says cellulosic ethanol is cleaner and does not drive food prices up because it is produced from wood waste or other non-food plants.
A Canadian company, Iogen Corporation, which
specializes in industrial enzyme production,
is operating a pilot plant in Ottawa
and is planning to build a commercial plant
in Idaho. Brazil has started construction of a commercial biomass-to-ethanol facility using Iogen's cellulosic bio-fuel technology.
And of course processing waste into bio-fuel works two ways - reducing amount of refuse disposal while providing a relatively inexpensive and less polluting source of energy...