@CNN: Hundreds of years ago, oyster reefs helped protect New York City from hurricanes and storm surge. Now, a project is underway to bring back the long-lost oysters to clean the city harbor’s murky water and revive its ecosystem. https://t.co/M2P1jJbQsN https://t.co/TUnmhJrJhM

@CNN: Hundreds of years ago, oyster reefs helped protect New York City from hurricanes and storm surge. Now, a project is underway to bring back the long-lost oysters to clean the city harbor’s murky water and revive its ecosystem. https://t.co/M2P1jJbQsN https://t.co/TUnmhJrJhM