Dr. Anna-Lena Grauel is a Geological Project Scientist and works at the Center for Isotope Geochemistry. Her main research interests are in the field of climate evolution and dynamics using different geochemical proxies. Anna-Lena is currently involved in several research projects where she uses stable isotopes of Carbon, Nitrogen, and Sulfur to better understand biogeochemical cycles, their interplay and potential feedback mechanisms. Furthermore, she works on the set-up of the analyses of δ18O in sulfate and phosphate at the Center for Isotope Geochemistry. Before she joined LBNL in 2016, Anna-Lena was a postdoctoral researcher at the Earth Science Department of the University of Cambridge with the main research focus on the reconstruction of climate evolution and climate dynamics using different geochemical proxies. During her PhD studies at ETH Zurich (2008-2012) and her postdoctoral studies at the University of Cambridge (2012-2015) she worked in an emerging field of isotope geochemistry, ‘clumped isotope’ geochemistry, and applied this new method in the context of paleoclimate reconstructions.