What are biofuels? The use of biological material (biomass) as a fuel or lighting material is not new - the earliest evidence for humans using wood for fires is at Gesher Benot Ya’aqov in Israel, 790,000 years ago. More recently, concern over the impact that the burning of fossil fuels is potentially having on the climate has resulted in renewed interest in biofuels. The carbon containing structures within plant material can, for instance, be burned to release the energy they contain. ... Biofuels, on the other hand, are produced from biological material that has been living recently. There are a number of ways in which biofuels can be produced. Some biofuels can be produced from waste material, such as recycled plant oils, whilst others can be produced from plants specially grown for the purpose

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