She is interested in the environmental history of North America and the North Atlantic world. She has taught at universities across Canada and in Denmark, in the areas of history, Canadian Studies, and Environment and Sustainability. Publications include Shaped by the West Wind: Nature & History in Georgian Bay (2004), A Century of Parks Canada, 1911-2011 (2011), and Land and Sea: Environmental History in Atlantic Canada (2013) with Robert Summerby-Murray. Her most recent work, Nature, Place, and Story: Rethinking Historic Sites in Canada (forthcoming 2017), uses environmental history to expand public history and discussions of sustainability at national historic sites.