Hello Gardeners, I’m Amanda McNulty with Clemson Extension and Making It Grow . Including all sources --institutional, commercial and residential-- food that’s thrown away is the largest component of what goes to landfills, responsible for at least twenty percent. You might think that’s just wasteful but actually there are disposal costs. From the standpoint of air quality and climate change, that food becomes a large factor in the emission of the greenhouse gas methane. When landfills are