Compost is organic material that is added to soil to help nurture the plants, enhance the moisture retention capability of the soil and assist with the plant growth. Food scraps and yard waste together currently make up more than 28% of what we throw away, and should be composted instead. Making compost keeps these materials out of landfills where they take up space and release methane, a potent greenhouse gas. Thus, composting also forms an essential part of circular economy.