I use lake sediments to study past changes in climate, particularly in the Arctic, with the goal of using paleoclimate records to improve our predictions of future climate change. The sedimentological tools I utilize include biomarkers (leaf wax isotopes, GDGTs, etc.), diatom assemblages, and sediment lithology and geochemistry. This multi-proxy approach is important for understanding the way that climate change impacts aquatic ecosystems. I am currently focused on the Lake El'gygytgyn Project led by Dr. Brigham-Grette. I am also interested in how other stressors (invasive species, pollution, etc.) impact freshwater ecosystems and freshwater resources, in both Arctic and urban settings.