page_title: Green waste
section_title: Renewable energy
hierarchical_section_title: Green waste / Uses / Renewable energy
caption_attribution_description: Vegetable waste and garbage being dumped in a market in Hyderabad.
context_page_description: Green waste, also known as "biological waste," is any organic waste that can be composted. It is most usually composed of refuse from gardens such as grass clippings or leaves, and domestic or industrial kitchen wastes. Green waste does not include things such as dried leaves, pine straw, or hay. Such materials are rich in carbon and considered "brown wastes," while green wastes contain high in concentrations of nitrogen. Green waste can be used to increase the efficiency of many composting operations and can be added to soil to sustain local nutrient cycling.
context_section_description: Biogas captured from biodegradable green waste can be used as biofuel. Green waste can be composed of non-food crops, which decompose to produce cellulosic ethanol. It can also help reduce the necessity of petroleum gases, which produce large amounts of greenhouse gases, such as carbon dioxide, when burned.
caption: Vegetable waste being dumped in a market in Hyderabad, India.
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