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biodegradable, and renewable. the pros and cons of biofuels are being discussed in the context of a variety of international issues, including the mitigation of carbon emissions levels and oil prices, the "food vs. fuel" debate, sustainable fuel production, deforestation and soil erosion, impact on water
digestion to produce biogas, or using second generation biofuels. examples include straw, timber, manure, rice husks, sewage, and food waste. biomass can come from waste plant material. the use of biomass fuels can therefore contribute to waste management as well as fuel security, though alone they are not...
https://www.newworldencyclopedia.org/entry/Biofuel