The group is chaired by Prof. Nicolas Gruber and is composed of five subgroups that work on a wide array of topics in ocean biogeochemistry, ecology, and climate. We are part of the Institute of Biogeochemistry and Pollutant Dynamics (IBP) at the Department of Environmental System Sciences (D-USYS).

While human activities have substantially perturbed the global cycles of carbon and nitrogen, our understanding of their impact on and response to Earth's climate have remained limited. This is because these perturbation not only cause atmospheric CO₂ to rise, thereby affecting climate, but because they also induce a myriad of other cascading effects in the Earth’s environment, such as ocean acidification, deoxygenation, and changes in oceanic ecosystems and their diversity. Predicting these changes represents a formidable challenge, as they emerge from the complex interactions of physical, chemical, and biological processes.