Dr. Ann Pearson Chair, Department of Earth and Planetary SciencesMurray and Martha Ross Professor of Environmental Sciences Ann Pearson's research focuses on applications of carbon, nitrogen, and hydrogen isotope geochemistry and molecular biology to biogeochemistry,... Read more about Ann PearsonGoogle ScholarGeo Museum 362 20 Oxford St Cambridge, MA 02138pearson@eps.harvard.edup: (617) 384-8392