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Organic waste consists of once-living materials, including food scraps, yard trimmings, and agricultural byproducts. It can be broken down by microorganisms to create nutrient-rich soil amendments such as compost and fertilizer. Organic waste makes up a significant portion of the waste stream in many areas and is often processed through large-scale composting facilities or anaerobic digesters. Proper management of organic waste can reduce greenhouse gas emissions, conserve landfill space, and promote sustainable agriculture.