Nicolas Cassar

Nicolas Cassar holds the Lee Hill Snowdon Professor of Biogeochemistry at Duke University's Nicholas School of the Environment. His research focuses on environmental biogeochemistry and physiology, particularly mechanisms governing ocean carbon cycles, productivity, and climate interactions.

• Education: Ph.D. (2003) from University of Hawaii, Manoa; B.S. (1997) from McGill University

His interdisciplinary approach combines field observations, laboratory experiments, and data science to study topics like ocean carbon budgets, nitrogen fixation, and air-sea gas exchange. Recent work examines Southern Ocean dynamics, dust-driven blooms, and submesoscale biophysical features.

Scientific contributions include the development of high-frequency measurement systems for dissolved gases and co-principal investigator roles in NSF-funded projects. Awards highlight his early career achievements (NSF CAREER 2014) and his 2025 recognition as a Bass Chair.