Now, several institutions, 100 schools and 75 restaurants recycle oyster shells through the Billion Oyster Project. The Hudson River Park, one of the partners, claims to have added 35 million ...

PHILADELPHIA, Pennsylvania (WPVI) -- You can recycle your used oyster shells for a great cause thanks to the Partnership for the Delaware Estuary. Ken Williamson and his crew pick up used oyster ...

Oyster shells are bulky and plain, but the treasures they hold go beyond their tasty meat and beautiful pearls. One company in Hong Kong is turning them into materials for constructing buildings.