Core Theme

 

Ocean and Climate

What is the role of the ocean in the global climate system and how can we improve predictions and scenarios?

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Core Theme

 

Marine Ecosystems and Biogeochemical Cycles

How does climate change alter marine communities and what are the consequences for humankind?

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Core Theme

 

Ocean Threats and Benefits

How can we forecast marine natural hazards and use resources from the seafloor in a responsible way?

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GEOMAR: Our World is the Ocean

GEOMAR explores the global ocean from the seafloor to the atmosphere to understand the ocean system and enable the development of sustainable solutions for pressing societal issues. Its research and its commitment to knowledge and technology transfer contribute significantly to preserving the function of the ocean and safeguarding it for future generations.

GEOMAR research covers a unique range of physical, chemical, biological and geological ocean processes. Members of the four research divisions Ocean Circulation and Climate Dynamics, Marine Biogeochemistry, Marine Ecology and Dynamics of the Ocean Floor cooperate in the three core themes Ocean and Climate, Marine Ecosystems and Biogeochemical Cycles and Ocean Threats and Benefits as well as the four Integrative Research Foci Atlantic Ocean Upwelling, Marine Carbon Sinks, Digital Twin Ocean and Metals in the Ocean. All work focuses on the open “blue” ocean.

 

GEOMAR Research News

A three-dimensional map of mountains rising out of the sea
01.04.2026

Alchemy in the Earth’s Mantle

Why Subduction Zones act as the Earth’s “Gold Kitchens”

Map of the oceanographic moorings in the Atlantic managed by GEOMAR, showing the currents of warm surface water and cold deep water associated with the Atlantic Meridional Overturning Circulation (AMOC). Graphic: Christoph Kersten/GEOMAR, Background: GEBCO
30.03.2026

Plankton Bloom in the Labrador Sea

Research expedition MSM142 investigates dynamics in the subpolar North Atlantic

A man stands by a rust-red balustrade, the silhouette of a city visible in the distance behind him.
25.03.2026

On the Spectrum between Rock and Water

Geologist Prof. Dr Oliver Nebel is the new Professor of Geochemistry at GEOMAR

European flat oysters on a white table
05.03.2026

How diseases spread between oyster reefs

New study reveals which restoration sites are most at risk from pathogens carried by ocean currents