New York Harbor’s oyster comeback hinges on a surprisingly simple solution.
The shells left behind after a restaurant meal could be the foundation for cleaner water and stronger coastlines, rather than regular old trash.
Here’s what to know
During Climate Week NYC, content creator Alaina Wood (@thegarbagequeen) toured the Billion Oyster Project in a TikTok post, documenting how the restoration process works.
As Wood described in the video, the program reuses discarded shells as building blocks for new reefs and has put more than 180 million of them back into the harbor.
The organization gathers shells from nearby restaurants, adds oyster larvae, and uses them in the harbor to restore reef habitat. It is working toward a target of returning 1 billion shells by 2030.
Wood said oysters begin life attached to older shells, and reefs build up as those shells accumulate over time. Those reefs can create habitat for marine species, sequester carbon, soften storm damage along shorelines, and help remove pollutants from the water.
“Their work has helped make the harbour cleaner and more full of life than it has been in over a century,” Wood concluded.
More background
Even natural materials can become waste when they are removed from the ecosystems that need them. Once oysters were eaten, the shells needed for new oysters to grow were not always returned to the harbor.
As a result, oyster reefs declined. Bringing them back can help biodiversity and improve environmental conditions in a densely populated coastal city.
“I love actionable steps like this,” a user reacted. “This is really good.”
What’s being done?
The project has returned more than 180 million oyster shells to the harbor, with thousands of volunteers and local schoolchildren helping and giving communities a hands-on role in the restoration.
“I’m a community scientist with billion oyster project they rule!!” a viewer excitedly shared.
Wood’s video also raises awareness of the initiative, which can help spark donations and participation in the cause and others like it.
“Any thing done to help lessen the effects of climate change should be shared!!” a viewer explained. “It’s so relieving knowing people are still going to great lengths to help our world.”
Oyster eaters also celebrated the sustainable move, which is a win-win for seafood lovers.
“I’m doing my part by eating the oysters,” a commenter wrote. “Glad to know their shells are making their way back where they belong.”
Where can I learn more?
Oyster recycling is helping restore coastal waters far beyond New York Harbor.
• In Louisiana, CRCL is turning restaurant shells into new reefs for wetlands along the coast.
• In Hong Kong, discarded oyster shells are rebuilding damaged coastal bays instead of piling up as waste.
• Around the Chesapeake Bay, volunteers are raising oysters in gardens to help clean the water.
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