kleiner orangener Seestern in einer Seegraswiese

Carbon-Hotspots in the Baltic Sea

Marine plants such as seagrass meadows, mangrove forests and salt marshes sequester large amounts of carbon in the sea floor. In the German Baltic Sea, for example, seagrass meadows currently store around 3 to 12 megatons. This is significantly more than was previously known, as the first results from Dr. Angela Stevenson from GEOMAR Helmholtz Center for Ocean Research Kiel show.

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Further press releases from Helmholtz


The changing Arctic Ocean

After eventful and busy months, the Arctic season ends this weekend with the Polarstern expedition called ArcWatch-1. The team of almost 100 crew and scientists measured sea ice thickness and…
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Polarstern reaches North Pole

Five weeks after setting sail from Tromsø, Norway, the Alfred Wegener Institute's research vessel Polarstern makes a stop at the northernmost point on Earth. Here, too, the international team of…
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Eyewitnesses to Arctic Change

On Thursday, 3 August 2023, the research vessel Polarstern is scheduled to set off from Tromsø, Norway, towards the North Pole. For two months, a good fifty scientific expedition participants will…
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How polluted is the Elbe River?

Researchers from several Helmholtz Centres will devote June/July to the question of how environmental chemicals, nano- and microplastic particles, and nutrients enter the Elbe and then the sea, in…
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What is growing in the North Sea?

A new app is capable of identifying, visualising and describing macroalgae present in the western and eastern Wadden Sea, and around the island Helgoland. The app, called SeaKey, currently provides…
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Make Way for the BLUEHOUSE

The demolition now underway on Helgoland will make room for construction of the BLUEHOUSE, which will offer a uniquely interactive permanent exhibition on marine research. Its 600 square metres of…
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Less Ice, Fewer Calling Seals

For several years, a team of researchers from the Alfred Wegener Institute used underwater microphones to listen for seals at the edge of the Antarctic. Their initial findings, just released in the…
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Less Sea Ice, More Herring

Every year, the waters of the polar regions are still covered by sheets of ice for weeks or months on end. But this sea ice is increasingly disappearing due to climate change. A glimpse into our…
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How eddies affect our climate

The ocean has a large effect on our planet’s climate. In this regard, mesoscale – i.e., medium-sized – eddies, which constitute essentially the weather on the ocean, could be far more important than…
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