The Earth’s environments have been shaped by biological evolution over geologic timescales, and biological evolution has in turn responded to environmental evolution. Geobiology is at this interface, often rooted in modern local observations and integrated over large spatial and temporal scales via the geologic record. The Stanford program in Geobiology and Paleontology has strong emphasis both on how organism metabolism and physiology influence modern environments and how strong feedbacks can emerge when viewed over the great sweep of Earth history via the sedimentary and fossil records. Coupled with strengths in geochemistry, sedimentary geology, environmental science, microbiology, ecology, and evolution, Stanford is a vibrant community for geobiological research.