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Green waste is biodegradable waste that can be composed of garden or park waste, such as grass or flower cuttings and hedge trimmings, as well as domestic and commercial food waste. The differentiation green identifies it as high in nitrogen, as opposed to brown waste, which is primarily carbonaceous.
Biogas captured from biodegradable green waste can be used as biofuel. Green waste can be used as non-food crop to produce cellulosic ethanol. It can also help us reduce the usage of petroleum gases which produce harmful gases on burning