A green bin is a municipal collection container for organic waste—food scraps, yard trimmings, and other compostable materials—that are processed into compost rather than sent to landfill. Green bin programs divert significant waste tonnage from landfills, reducing methane emissions (organic matter decomposing in landfills produces this potent greenhouse gas) and creating useful compost products. Accepted materials typically include fruit and vegetable scraps, meat and bones, dairy products, yard waste, and soiled paper products, though specifics vary by program. Effective green bin programs require resident participation, proper sorting (contamination with non-organics is a common problem), and processing infrastructure. Many municipalities have expanded organics collection over the past two decades as waste diversion has become a priority. Apartment buildings and businesses may have different organics collection arrangements than single-family homes.