What do those numbered recycle symbols on plastic mean anyway?

Digital TrendsWhat do those numbered recycle symbols on plastic mean anyway?Digital TrendsIf you grabbed a cup of coffee from your local chain this morning, what did you do with the cup? Trash it? Recycle it? Maybe you threw the plastic lid in the “landfill” can and tossed the paper cup in the “recycle” bin. When you've drained the last ...