By composting them, we're helping the earth replenish itself. If grass clippings are short enough, they quickly decompose and supply the soil with nitrogen and carbon. When yard waste is buried in landfills, where there is not much oxygen, it releases methane gas, a powerful green house gas that contributes to air pollution and global warming. Methane and other toxics can also condense into liquid and leach into groundwater. Instead, separate pick-ups are made and this waste is composted to be used in state landscaping.
Zoos are in the business of composting.
Composting food scraps adds nitrogen, which speeds up the composting process and helps make better fertilizer. Adding saw dust to your compost pile will help absorb and mask odors. Worm compost is sometimes used as one of the ingredients in potting soil that can be bought at hardware stores and garden centers.