Dog waste can be a problem in communities if it isn't properly disposed of. The waste can pollute waterways and raise the harmful bacteria level in public water. So don't just leave dog waste in the yard or in the woods and let nature take its course -- you need to properly dispose of it. There are two options: You can recycle plastic bags and scoop up the waste to dispose of it in the trash; or, for the greenest method, dig a hole in the ground around 12 inches deep and bury it. This will help it slowly decompose properly over time.