Evan J. Ramos (he/him)
Assistant Professor, Department of Geology and Environmental Science
PhD 2021, Geological Sciences, University of Texas at Austin
M.S. 2017, Geological Sciences, University of Texas at Austin
B.A. 2015, Geophysics and Planetary Science, Boston University
Evan is the Principal Investigator of ESG and an Assistant Professor in the Department of Geology and Environmental Science at the University of Pittsburgh. Before joining Pitt, he held appointments as an NSF Postdoctoral Fellow at Rice University and Brown University and a Junior Fellow in the Rice Academy of Fellows at Rice University. His research concerns the role of fluid-rock interactions in the cycling of nutrients across the Earth's surface and employs a wide range of geochemical, isotopic, and model-based methods to do so. When not at work, Evan enjoys listening to music, making a mess in the kitchen, watching movies, and cycling.
Researchers
Noah Jemison
Research Associate, Department of Geology and Environmental Science
PhD 2018, Geology, University of Illinois- Urbana-Champaign
M.S. 2015, Geology, University of Illinois- Urbana-Champaign
B.S. 2013, Environmental Geology, University of Pittsburgh
Noah is a Research Associate in the Department of Geology and Environmental Science at the University of Pittsburgh. Previously, he was a Research Assistant Professor at University of New Mexico and a post-doctoral research at Los Alamos National Lab. His research explores fluid-rock interactions and redox cycling of elements in water systems using fieldwork, experiments, and chemical analyses. Noah also enjoys playing tennis, jogging, and entertaining his daughter.
Graduate Students
Claire Mock
PhD student (2024-) Department of Geology and Environmental Science
B.S. 2022, Environmental Science, Westminster College
Claire is pursuing her PhD in the Department of Geology and Environmental Science at the University of Pittsburgh, following the completion of her undergraduate studies in environmental science at Westminster College, where her research was focused on catalysts and remediation of wastewater pollution, acid mine drainage, and mitigation of Western Pennsylvania wetlands. Her research interests broadly include environmental chemistry, climate change and the carbon cycle, and science communication. In her spare time, Claire enjoys gardening and volunteering with the Westminster College Speech and Debate Society.
Hwiseo Choi
PhD student (2025-) Department of Geology and Environmental Science
B.S. 2024, Environment, Economy, Development, and Sustainability, Ohio State University
Hwiseo is pursuing a PhD in the Department of Geology and Environmental Sciences at the University of Pittsburgh. His research focuses on how chemical weathering, solute generation, and CO₂ cycling are linked across lithological and geomorphic gradients, with a particular emphasis on the East River watershed in the Rocky Mountains. By combining watershed-scale geochemical analyses with lithium isotope systematics, he aims to better constrain the role of silicate and carbonate weathering in regulating river chemistry, long-term carbon budgets, and global climate feedbacks. Broadly, his interests include critical zone science, isotope geochemistry, and the interactions between geomorphic processes, solute fluxes, and climate change. In his free time, Hwiseo enjoys watching and playing basketball, working out, and cooking.
Jess Dean
PhD student (2025-) Department of Geology and Environmental Science
B.S. 2025, Environmental Science, Denison University
Jess is a PhD student at the University of Pittsburgh in the Department of Geology and Environmental Science. She completed her undergraduate studies in Environmental Science at Denison University, where her research was focused in structural geology and tectonics, utilizing thermochronology and structural data to understand uplift in the Crazy Mountains in Montana. Her research interests include earth surface processes, carbon cycle dynamics, and connections between landscape evolution and geochemistry. She also enjoys reading, crocheting, and weightlifting in her spare time.
Alumni
Sam Hallett (Bates College, Summer 2025): Lithium sorption to short range order minerals