Nora Casson

Nora Casson is an Associate Professor and Canada Research Chair in Environmental Influences on Water Quality at the University of Winnipeg's Richardson College for the Environment. Her research focuses on hydrological controls on nutrient export, landscape effects on stream and lake chemistry, and interactions between hydrological and biogeochemical processes. She teaches courses such as Hydrology (GEOG-3210), Global Biogeochemical Cycles (GEOG-3218), and Interdisciplinary Research Foundations (GESC-7103).

Her work emphasizes climate change impacts on water quality, particularly in cold regions. Key research themes include winter weather whiplash events, snowmelt dynamics, and nutrient/phosphorus management in agricultural and boreal forest systems. Recent studies highlight thresholds in winter temperature/precipitation shifts and their ecosystem-wide consequences.

Casson’s publications span high-impact journals like Nature and Ecological Monographs, addressing topics from global methane emissions to soil carbon dynamics. She collaborates internationally on databases like GRiMeDB to quantify fluvial methane fluxes. Her interdisciplinary approach bridges environmental science with public health, as seen in her 2023 study on Canadian perceptions of climate change health risks.

Her research often involves field simulations of snowmelt flooding and evaluates soil amendments to mitigate nutrient loss. She has contributed to policy-relevant analyses of winter climate trends and their societal/ecological implications in northeastern North America.