My main research focus lies in exploring the interaction between the geosphere and climate, and human societies during the Quaternary based on the study of geological archives. In my research, I have mainly focused on terrestrial sedimentary archives. As a geologist, I study landforms and sediments by producing quantitative data based on detailed fieldwork, quantitative methods in the lab, time calibration, and modeling. To realize this, I built up the Surface Exposure Dating Laboratory at the Institute of Geological Sciences of the University of Bern in 2002. I started with the applications of cosmogenic 10Be in solving the problems in Earth Sciences. Since then, I continuously introduced new tools such as fault-scarp, depth-profile, and isochron-burial dating techniques, which has resulted in a long tradition and a wealth of experience in applying cosmogenic nuclides (10Be, in-situ 14C, 26Al, and 36Cl) to establish the timing of events and rates of landscape change. By merging field data with various dating techniques, I led research in (1) the quantification of rupture rates of normal faults; (2) the quantification of uplift rates of an entire continent in response to glacial unloading; (3) the quantification of landscape changes through dating and mapping of fluvial terraces; and (4) reconstructions of the glacial dynamics in Turkey, the Alps, Africa and in Antarctica.