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

Four small silver fish lie on a table.
04.12.2025

Festive Christmas Dinner: Only ‘Good Fish’ on the Table

GEOMAR, environmental organisations and consumer advice centres update their joint list of ‘good fish’ for conscious purchasing of sea fish

An iceberg and ice floes floating on the sea
01.12.2025

Expansion of Antarctic Bottom Water contributed to the End of the Last Ice Age

New study highlights the key role of the Southern Ocean in the Earth’s climate system

A large research vessel at sea
21.11.2025

Exploring the Links Between Climate and Volcanism

SONNE Expedition Along the Central American Volcanic Arc Sets Sail

Waves on the Sea
20.11.2025

Southern Ocean’s Heat Storage – a Possible Cause of Future ‘Heat Burps’

A modelling study shows how heat stored in the ocean could be released after centuries of global cooling