Having a home garbage disposal reduces landfill waste by pulverizing food waste and washing it down the drain. The food waste does not become liquid, but it is altered enough not to ruin sewer pipes. A garbage disposal is a step in the right direction, but it solves less than half of the problem. Plenty of waste gets thrown away even with a disposal. Not only that, but the material that can be put down a garbage disposal would be better used in a compost pile.