A terrible amount of our food supply goes to waste
. It's not just unsold produce that rots in a grocery store. All along our food chain, we throw away edible material. Efforts to reclaim those loses are sometimes met with some disgust (eg. pink slime), but finding uses for food stuff that would otherwise end up in landfill should be a noble pursuit. Here are just a few projects that could eat up some of our uneaten leftovers.
If you'd like to read more awesome and interesting stuff, check out this unrelated (but not entirely random!) Techdirt post