Compare? Diversion of organic food waste and yard trimmings from the municipal waste stream by composting hem in one's yard through controlled decomposition of organic matter by bacteria and fungi into a humus-like product. It is considered source reduction, not recycling, because the composted materials never enter the municipal waste stream.

The process of collecting and assembling biodegradable organic materials in order to convert them through decomposition into usable, rich topsoil. This process mimics what physically also occurs in nature through the decomposition of plant and animal byproducts by microorganisms.

the homeowner’s practice of collecting leftover kitchen scraps (excluding meats and fats) and yard trimmings for decomposition in a private compost pile. Backyard composters can use their compost as a soil enhancement for their gardens.