Photo Credit: Billion Oyster Project
A New York nonprofit is showing how restaurant waste can become a powerful tool for cleaner water and stronger coastlines, Good News Network reported.
Here’s what to know
On Governor’s Island, people are turning discarded oyster shells into living reefs that are helping revive New York Harbor.
According to Good News Network, the Billion Oyster Project works with about 75 New York City restaurants, redirecting used shells away from landfills and into efforts to restore historic oyster reefs.
Launched in 2008, the project shows how practical infrastructure can emerge from overlooked waste streams. The group says it has restored 19 acres of reef by growing 200 million live oysters on 3.2 million pounds of recovered shells. That puts the project at about one-fifth of the way toward rebuilding 100 acres of former reefs and reaching 1 billion oysters by 2035.
Beyond creating habitat, oysters naturally filter pollutants from the harbor, and reefs can also soften wave energy, which could help limit flooding during stronger storms.
Bela Altman, volunteer coordinator for the Billion Oyster Project, told Reuters, “Oysters are what we call a keystone species, meaning if the oysters are thriving in an environment all other biodiversity is thriving in that environment.”
More background
For restaurants, that means shells can go toward reef restoration instead of municipal landfills, helping support cleaner waterways and marine life.
The project estimates that its oysters have already filtered harbor water in the tens of trillions of gallons. Water quality gains on that scale could help wildlife and waterfront communities, and healthier ecosystems may also make urban shorelines more resilient.
With 100 new reefs, Altman stated in Reuters’ video that they could refresh the entire water volume of New York Harbor every three days. A larger oyster population might also expand supply over time and eventually reduce prices for restaurants and diners.
What’s being done?
At the Billion Oyster Project’s hatchery on the south end of Governor’s Island, collected shells are prepared for reuse. Agata Poniatowski, education outreach coordinator for the project, told ABC News, “We take the oyster shells from restaurants and bring them to our shell pile.”
Before they go back into the water, the shells are left to cure until they are safe to use again.
“Once there’s no bacteria and no invasive species, no disease, we bring them to our hatchery,” Poniatowski said. The team then adds oyster larvae, which settle onto the shells, grow, and adapt to local conditions.
The hatchery is able to raise up to 10 million baby oysters at one time. Once they are ready, people pack the oysters into bags, move them into the harbor, and place them at reef sites.
Where can I learn more?
New York’s oyster reefs are part of a global push to find uses for material that would otherwise go to waste.
• Scientists have turned shrimp waste into activated carbon that can help remove pollutants from water.
• A startup’s microfiber filter for washing machines aims to keep more plastic out of oceans.
• Genecis is turning food waste into biodegradable plastics, extending the logic of circular reuse.
Each example tackles a different waste problem, which means they collectively create many solutions to recycle discarded materials instead of making more trash.
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