To support the implementation of the Impact Assessment Act, Natural Resources Canada (NRCan) received funding over five years (2018-23) for cumulative effects research to be conducted by three of NRCan’s science sectors – the Canada Centre for Mapping and Earth Observation within the Strategic Policy and Innovation Sector, the Canadian Forest Service, and the Geological Survey of Canada within the Lands and Minerals Sector – to conduct key earth observation, forest, and geoscience research. The overarching goal of this research is to inform regional assessment and related impact assessment processes, with a central focus on making the science and knowledge generated open and accessible to the public via the Open Science and Data Platform . Projects from all three sectors generated authoritative data on the status and trends of ecosystem parameters, as well as provided unique science and technical analysis, synthesis and advice on topics related to the cumulative effects of natural resource development. This Story Map synthesizes the cumulative effects science generated over the past five years. Through the Story Map platform, we hope to illustrate the national scale of this research program and the diversity of locations in Canada within which research has been conducted.