Marcelo Ketzer

Marcelo Ketzer is a Professor of Environmental Science with a focus on sedimentary geochemistry at Linnaeus University's Department of Biology and Environmental Science, Faculty of Health and Life Sciences. His work spans teaching, research, and leadership in environmental science programs, particularly focusing on the Baltic Sea ecosystem and global marine environments.

Professor Ketzer's research centers on sedimentary geochemistry, particularly examining the chemical composition of sediments and soils in both pristine and human-affected environments. His work explores the relationship between life and chemistry in geological settings, with special emphasis on biogeochemical cycles, particularly methane dynamics in marine sediments. He investigates how climate change affects these processes in the Baltic Sea, Atlantic Ocean, and Mediterranean Sea, with implications for global carbon budgets and marine ecosystem stability. His research also addresses the stability of methane hydrates in deep-sea environments under changing climate conditions, which has significant implications for understanding potential greenhouse gas emissions and seabed stability.

Analysis of Professor Ketzer's recent publications reveals a strong focus on climate change impacts on marine biogeochemical processes, particularly methane cycling in the Baltic Sea. His work combines field expeditions with advanced modeling approaches to understand sediment dynamics, microbial responses to warming, and pollution impacts. The research demonstrates interdisciplinary collaboration across environmental science, microbiology, geochemistry, and climate science, with practical applications for environmental monitoring and climate change mitigation strategies.

Professor Ketzer actively mentors students through doctoral projects and teaches in both the Environmental Analyst Programme (undergraduate) and Environmental Science and Sustainable Development Programme (master's level). His research is supported through multiple ongoing projects examining climate change impacts on coastal ecosystems, metal accumulation in Baltic Sea sediments, greenhouse gas production in fiberbanks, and methane dynamics in warming marine environments.

He leads the Environmental Geochemistry research group, which investigates chemical processes in Earth's surface environments, with particular focus on sediment-water interactions, pollution dynamics, and climate change impacts. Professor Ketzer has participated in numerous expeditions to study methane emissions in the Baltic Sea, Atlantic Ocean, and Mediterranean Sea, contributing to our understanding of how marine systems respond to global warming.