To worm or not to worm? When it comes to composting, that’s the question many savvy gardeners are pondering these days, and for good reason: Worm castings — a.k.a. poop — are the nutrient-rich organic ...

Add Yahoo as a preferred source to see more of our stories on Google. In one popular online lesson from 4-H, educators present worm composting, turning food waste into usable compost for the garden.

Humans tend to waste a lot of food. It's a problem that has led innovators to come up with all kinds of ideas — for how we could change grocery shopping to how we could change cooking to how we could ...