Turning The Tide

By Karena Phan, Time for Kids

The Tappan Zee Bridge was around for 62 years. It carried people across the Hudson River, in New York. In 2018, workers picked the bridge apart, piece by piece.

Now the old bridge is being recycled. Huge pieces of it are being cleaned. Then they are dropped into the Atlantic Ocean. The Tappan Zee will start a new life as an artificial reef.

Under the Sea

Natural reefs are made of living things called corals. Other sea animals use coral reefs for food and shelter. “Reefs are great for nature,” Bill Ulfelder told TIME for Kids. He works at the Nature Conservancy. Ulfelder says coral reefs are also great for people. Reefs attract tourists. Reefs help protect coastal communities from flooding, too.

But coral reefs are in trouble. That’s why people are building artificial ones. The reefs are made from large objects placed on the ocean floor. Over time, coral starts to grow on them.

Help for Troubled Waters

Artificial reefs can be built using many types of material. They can be made of limestone, steel, and concrete. Sometimes, structures that are no longer being used are recycled to create reefs. That is what happened with the Tappan Zee Bridge.

Many artificial reefs are made using old ships. In 2005, Jim Walsh helped turn a ship into a reef. The ship was called the Carthaginian II. Walsh says it is now home to 75 animal species. “It’s amazing to see how much life is on that ship,” he says.

Coral Crisis

Tiny, colorful creatures called algae live on coral. When ocean waters get too hot or too cold, the algae go somewhere else. Without algae, the coral has no food. Its color fades. This is called coral bleaching. Sometimes, the coral dies.

The world’s largest reef is the Great Barrier Reef. It is in Australia. About 93% of this reef has been harmed by coral bleaching. Scientists say climate change and pollution are to blame.

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Kids Magazine: Turning The Tide
Turning The Tide
Turning The Tide The Tappan Zee Bridge was around for 62 years.
Kids Magazine
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