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The Dutch mastered the sea but its reefs paid the price, so this company is printing new ones

Europe's longest dam has kept the Netherlands from flooding for almost a century, but it wiped out the marine life around it. Now a small Dutch company is 3D printing reefs to restore what was lost.

2:55 • Source: CNN
Call to Earth 15 videos
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The Dutch mastered the sea but its reefs paid the price, so this company is printing new ones
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A long-lost giant makes a remarkable return
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For the Ocean: Sylvia Earle and Titouan Bernicot
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For more than a century, National Geographic has brought the world's greatest discoveries into our homes. Now, a new museum in Washington, DC, is inviting visitors on an immersive journey into the world of exploration, conservation and storytelling.
Inside the National Geographic Museum of Exploration
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Reforesting Rio de Janeiro
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Why scientists want ice from 600 meters below the surface
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Saving the Amazon's stingless bees
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Call to Earth: Reviving India's waters
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Bearded vulture on the brink: Conservationists in South Africa and Lesotho race to save this raptor
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Underwater 'reef music' could help in coral restoration
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Saving pangolins at a pioneering facility in South Africa
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Why scientists call these ants ‘a minefield in your backyard’
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No Blue, No Green: A conversation with Sylvia Earle
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This underwater photo taken on June 14, 2024 shows bleached corals around Koh Tao island in the southern Thai province of Surat Thani. Coral bleaching has been recorded in over 60 countries since early 2023, threatening reefs that are key to ocean biodiversity and support fishing and tourism industries globally, and that death spiral is everywhere in the waters of the Gulf of Thailand around Koh Tao.
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Marine biologist: “Everything we do from when we get up in the morning to when we go to bed connects us to coral reefs.”
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<p>Thursday, November 6th, across CNN we are celebrating 'Call To Earth Day' which this year embraces the powerful theme "Guard Your Green Space," urging individuals, communities, and nations to take bold, collective action to protect the natural world that sustains us. The sport of SailGP is a living, breathing testament to that mantra, with a revolutionary initiative that has integrated sustainability into the very fabric of its DNA. Now in its fourth season, SailGP's Impact League is challenging athletes on and off the water and redefining how sport can be harnessed to create positive change. CNN's Amanda Davies has more.</p>
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SailGP: The sport with a podium dedicated to the planet
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