Edwina's main area of research is in the field of marine science with a focus on climate change. She completed her MSc titled 'Canary Current upwelling climate change and fisheries' and her PhD titled 'A carbon budget for a large drowned river valley estuary adjacent to an emerging megacity (Sydney Harbour)' at the University of Sydney. She was awarded an Australian Postgraduate Award for this research. Previous research projects include the development of a hydrodynamic model of the Sydney Harbour Estuary, co-investigator for a beaked whale habitat mapping study and project manager for the Behavioural Response the Australian Humpbacked whales to Seismic Survey (BRAHSS) project. Edwina is currently engaged in global studies of harbours and estuaries through the World Harbour Research Project at the Sydney Institute of Marine Science (SIMS) where she is the project coordinator.