Sally MacIntyre studies ecological processes in lakes, wetlands, streams and coastal oceans. Her work places a particular emphasis on the physical processes of heating and cooling, circulation and biogeochemistry including fluxes of climate forcing trace gases and system productivity. MacIntyre has conducted studies in East Africa, the Amazon Basin, Antarctica, coastal California and Mono Lake, CA. She has studied arctic lakes for the last twenty-six years, including winter limnology, the production and outgassing of carbon dioxide and methane, as well as the influence of winter on the ice-free period.