Reconstructing how terrestrial ecosystems are influenced by environmental perturbations, such as long and short term climate change events, mass extinctions, tectonic modification of sedimentary basins, and local changes to river and lake depositional systems is critical to allow us to better understand the Earth’s climate and biota in the past and the future. Our research focuses on topics including extreme climate variability, responses of fluvial, lacustrine, and hydrologic systems to climatic and environmental change, ecological changes, carbon cycling, hominid evolution, and elucidating the record and forcings for continental-scale climate variability.