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Jochen Halfar is a Professor in the Department of Earth Sciences at the University of Toronto Mississauga, where he leads interdisciplinary research in paleoclimate studies. His laboratory focuses on deciphering paleoclimates across timescales ranging from the past centuries to 55 million years ago, utilizing sclerochronological, geochemical, and sedimentological multi-proxy approaches. His research is conducted in close collaboration with biologists, oceanographers, and climate physicists. Some of the main directions of his current work include the study of crusty Arctic seafloor algae that live for 650 years and deposit annual tree-ring-like layers, aiding in the interpretation of past ocean climates and sea-ice conditions. Another aspect of his current research investigates modern shallow water marine carbonate environments in the tropics to evaluate adaptation to nutrient enrichment and ongoing ocean acidification. Additionally, he studies exceptionally well-preserved fossil wood found in volcanoclastic deposits associated with early Paleogene kimberlite pipes in Northwest Territories, Canada, focusing on terrestrial climate variability during a period of extreme warmth.
Department of Sociology