Klaus Wallmann

Klaus Wallmann is a Professor and Head of the Research Unit Marine Geosystems at GEOMAR Helmholtz Centre for Ocean Research Kiel and the Christian-Albrechts-University (CAU) Kiel. His research focuses on marine biogeochemistry, particularly gas hydrates, fluid flow, nutrient cycling, and the geochemical evolution of oceans and atmosphere. He leads major research initiatives including the Cluster of Excellence 'The Future Ocean' and coordinates EU projects such as MIGRATE and GEOSTOR.

• Dipl. Chemistry, Philipps University of Marburg (1986)
• Dr. Ing., TU Hamburg-Harburg (1990)
• PD Dr. habil (Geosciences), CAU Kiel (1999)

His research interests center on marine biogeochemical processes, including the microbial degradation of organic matter, gas hydrate formation, nutrient recycling, isotopic trends in marine carbonates, and numerical modeling of ocean-atmosphere evolution. He investigates cold seeps, mud volcanoes, and subduction zones to understand volatile cycling and seafloor dynamics.

His recent publications reveal a strong focus on carbon cycling and climate mitigation, particularly through sub-seabed CO₂ storage, seafloor alkalinity enhancement, and the impact of anthropogenic activities on marine carbon storage. His work combines field observations, experimental data, and advanced numerical models to explore long-term geochemical trends and modern environmental challenges.

• Scholarship from the Evangelical Study Foundation, Haus Villigst (1982–1986)

Wallmann has supervised numerous students and collaborators, contributing to major discoveries in marine methane dynamics, gas hydrate systems, and ocean deoxygenation. His research is supported by extensive fieldwork, ocean expeditions, and leadership in collaborative programs such as SFB 574 and SFB 754. He has played a central role in assessing the environmental impacts of CO₂ storage and natural gas hydrate exploitation.

He leads research in marine geosystems at GEOMAR, focusing on biogeochemical feedbacks, fluid-sediment interactions, and climate-relevant gas cycling. His team integrates geochemical data, isotopic analyses, and modeling to study processes from molecular to global scales.