Bio-sourced energy

Certain BIO MASS (the sum total of living and dead plants, animals, and microorganisms in an area) can be used as fuel to produce heat energy.
Biofuel – known commonly as bio-diesel – is made from the methane released from natural vegetable seeds and grains, such as can be made from renewable oilseed crops such as soybeans, rapeseed, cottonseed and mustard seed. In fact, thought it seems like “all the rage” and the “idea of the day”, the use of vegetable oils in diesel engines is nearly as old as the diesel engine itself. The inventor of the diesel engine, Rudolf Diesel, reportedly used peanut oil as a fuel for demonstration purposes in 1900. Biodiesel runs in any conventional unmodified diesel engine. Pure biodiesel increases engine’s life, since it does not leave any deposits. The use of biodiesel can extend the life of diesel engines because it is more lubricating than petroleum diesel fuel while fuel consumption, ignition, power output and engine torque are unaffected. An excellent resource can be found HERE for detailed information.
Biomass – the biomass contained in garbage can be burned to produce heat energy or can be allowed to decay and produce methane (natural gas). In western Europe, over 200 power plants burn rubbish to produce electricity. Methane can be converted to the liquid fuel methanol, and ethanol can be produced from fermentable crops such as sugar cane and sorghum. Adequate air pollution controls are necessary when biomass is burned to limit the release of carbon dioxide into the atmosphere.