Use a lawn mower with a mulching blade to recycle grass clippings back into your lawn. Mulching returns nutrients to your soil, helps retain soil moisture, and keeps waste out of the landfill.
If you choose not to mulch, grass clippings can be composted or disposed of with your trash. The Ada County Landfill employs a methane recapture system to generate electricity and provide power to thousands of local homes. The presence of yard waste and other organic material in the landfill actually facilitates the generation of gas and more electricity.