Most of us haven’t given much thought to what happens to waste after it’s tossed in the bin. To “unearth” more, we checked in with educator Julia Au of RethinkWaste. It turns out, waste can either form stinky methane in a landfill or beneficial compost for reuse on the land — and it’s up to us to choose which one. We also test Julia’s knowledge as she helps us with those tricky “what do I do with THIS?” questions.