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Seabed mining puts pressure on the marine environment: Think tank calls for action

The think tank presents proposals to ensure that the future supply of raw materials for construction and civil engineering is in better balance with life and nature in the sea.
14. APR 2026 13.23
Natur
Plan & Byg
Teknik & Miljø

A new analysis from the think tank Hav shows that the extraction of sand and gravel from the sea negatively affects the marine environment in the areas where the seabed is sucked up.

More specifically, according to the think tank, the extraction removes bottom-dwelling species and the habitats on which they depend.

The analysis also shows that the extraction of sand, gravel and pebbles from the seabed has increased by around 80 percent since 1990, and in 2024 reached the highest level ever with 14 million m3. The development is expected to continue towards 2040, which could increase the pressure on an already stressed marine environment, it says.

The four overall objectives of the recommendations
  1. Reduced environmental impact from extraction through, among others, minimum standards for more gentle extraction and active restoration of former extraction areas.
  2. More efficient and sustainable planning of the raw materials area through, among other things, a national database of new and recyclable raw materials and requirements for sharing raw data on the environment and effects on the environment.
  3. Financing sustainable efforts in the raw materials area through a doubling of the raw materials tax and earmarking of the tax's proceeds.
  4. Reduction of demand for new raw materials from the construction industry through, among other things, requirements for raw materials budgets and a strengthened supply of recycled and alternative materials.

You can read more about the various recommendations and areas of action here.

Source: Think Tank Hav

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https://www.doi.dk/en/havenergi/artikel/havbundsindvinding-presser-havmiljoeet-taenketank-kraever-handling

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