Dredging and dumping impact coastal fluxes of sediment and organic carbon in the North Sea

Dredging and dumping impact coastal fluxes of sediment and organic carbon in the North Sea

Helmholtz-Zentrum Hereon

Published: 22 January 2026

A 30-year analysis reveals that 200 million tons of sediment are relocated annually by dredging in the North Sea -- equal to the natural transport by all surrounding rivers -- releasing up to 500 million tons of carbon globally each year.

Keywords: dredging, sediment transport, North Sea, carbon release, Wadden Sea, coastal science, Nature Communications

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Perfect storm under the midnight sun triggered marine heatwave and explosion of salmon lice

Perfect storm under the midnight sun triggered marine heatwave and explosion of salmon lice

University of Bergen Bjerknes Centre for Climate Research

Published: 25 February 2026

A Bjerknes Centre study shows how converging warm Atlantic currents, low wind mixing and strong solar heating created a 2024 marine heatwave in northern Norway with SSTs exceeding 18C -- over 4C above average -- driving a record salmon lice outbreak.

Keywords: marine heatwave, Norway, Arctic, sea surface temperature, salmon lice, Atlantic currents, aquaculture

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The future Barents Sea: A synthesis of physical, biogeochemical, and ecological changes toward 2050 and 2100

The future Barents Sea: A synthesis of physical, biogeochemical, and ecological changes toward 2050 and 2100

University of Bergen

Published: 14 February 2026

A major synthesis led by University of Bergen researchers projects that the Barents Sea will become warmer, less ice-covered, more acidic and more productive, with fish populations shifting northward under both moderate and high-emission scenarios.

Keywords: Barents Sea, Arctic, climate change, ocean acidification, marine ecosystems, fish migration, sea ice decline

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