One focus of our research program is the reconstruction of past climates at different timescales and to understand the evolution of the global biogeochemical cycles of carbon and sulfur in the Mesozoic. A second research area is the study of diagenesis and its effects on the preservation of primary environmental signatures in the geologic record. The third focus of our research is the development and use novel analytical techniques. Currently our main efforts center on carbonate clumped isotope geochemistry, but in our research we also apply organic geochemistry, other stable isotopes systems, and compound-specific radiocarbon dating. We combine field-based investigations of the geological record with process-oriented studies of modern environments and laboratory experiments.