PhD in Earth and Climate Sciences - Climate Change, Glacial Geology, Glaciology and Quaternary Studies in Orono United States | University of Maine

Growing concerns about the timing, scale, and pace of future climate shifts underscore the need for a thorough grasp of the mechanisms driving climate variability. The discovery of significant abrupt climate changes in paleoclimate records—more extreme than those witnessed in modern times—has emphasized the dangers posed by rising greenhouse gas concentrations. Researchers employ diverse methods, from contemporary observations and process studies to paleoclimate proxies and model-driven data analysis, to pinpoint triggers of sudden climate shifts. These insights enhance our capacity to forecast future trends. Current models still fall short in fully explaining climate variability across all timescales, partly because key relationships between climate and environmental feedbacks remain unclear. Developing hypotheses that connect climate forcings with their impacts is especially vital for the Southern Hemisphere, where high-resolution paleoclimate data and detailed glaciological studies are scarce. Furthermore, studying how past societies adapted to climate shifts offers valuable lessons on the societal consequences of environmental disruptions, from shifting weather patterns to sea-level rise. Geoarchaeology, as an interdisciplinary field, bridges these insights by exploring human-climate interactions, helping us anticipate how future events might influence cultural adaptation. The School of Earth and Climate Sciences and Climate Change Institute have long been at the forefront of this research, shaping key theories on global and abrupt climate change. In the coming years, faculty from both institutions will play pivotal roles in major climate initiatives, spanning ice core extraction and geological surveys to satellite remote sensing and investigations into human-climate connections.