Organic materials, such as yard trimmings and food scraps, contribute to approximately two-thirds of the solid waste stream. Not only is food waste heavy, it is wet and takes more energy to incinerate. Composting is one of the best things you can do for your garden because it produces nutrient-rich soil and also helps retain moisture in the ground. It's also beneficial for the environment because it will reduce the amount of trash you dispose thereby reducing the environmental impact at the incinerator and landfill.
If you are new to composting, the links below can get you started and on your way: