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The Baltic Sea's underwater forests are disappearing

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Axel Warnstedt
October 5, 2026

Seagrass stores carbon, protects coastlines and shelters countless marine species. But in the Baltic Sea, 60% of seagrass meadows have vanished. Scientists and conservationists are racing to restore this vital ecoystem.

Most people never see them, but seagrass meadows are among the ocean's most valuable ecosystems. These underwater meadows shelter thousands of species, protect coasts from erosion and store carbon up to 50 times faster than forests. Yet nearly 30% of the world's seagrass has disappeared. Along Germany's Baltic coast, divers, scientists and entrepreneurs are working to restore damaged meadows by planting shoots, cultivating seagrass and testing new methods using seeds. Researchers hope these hidden marine habitats can boost biodiversity, improve water quality and help coastal ecosystems withstand the growing pressures of climate change.
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