Dr. Freya Alldred is a polar scientist and biogeochemist specializing in the study of seaweeds and their responses to climate change in remote polar environments. Her research focuses on stable isotope biogeochemistry, using marine macroalgae as natural recorders of environmental change, including nutrient cycling and human-derived nitrogen pollution. 

Based at Durham University, Freya’s work combines laboratory-based isotope analysis with extensive fieldwork in the Arctic and sub-Arctic, including research in Svalbard. Her research contributes to a growing understanding of how polar marine ecosystems respond to both climate-driven shifts and localized anthropogenic impacts, such as sewage-derived nutrient inputs. 

Alongside her academic research, Freya is an active science communicator, sharing insights from her fieldwork and findings with broader audiences. She has written about innovative methods for identifying pollution using seaweed and regularly engages with the public through talks, online platforms and visual storytelling from the field. Her work reflects a strong commitment to interdisciplinary science, environmental stewardship and improving our understanding of fragile polar ecosystems.