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Biodegradable waste is any waste that can decomposed in a reasonable amount of time. Common biodegradable wastes are food and kitchen waste, manure, sewage, agricultural and forestry waste, and textiles. Biodegradable wastes are important as when landfilled they break down anaerobically to produce biogas. If uncaptured this escapes into the atmosphere and becomes a contributor to global warming. The main environmental threat from biodegradable waste is the production of methane in landfills. Biodegradable waste can often be used for composting which turns the waste into humus. It can also be used as a resource for heat, electricity and fuel in future, by using anaerobic digestion.
