Here's something you've probably never heard of - oyster shell recycling.
The shells are collected and dumped in waters along the central and southern coast of North Carolina. The shells form oyster reefs, enabling oyster eggs to have a surface to attach to and grow.
The Oyster Shell Recycling Program has collected 185,000 bushels (about 5,000 short tons) since 2003, enough to cover 38 acres (about 15 hectares). More oster reef means more oysters, and a virtuous cycle.