The Alaska Climate-Biome Shift Project (AK Cliomes) and the Yukon (YT) and Northwest Territories (NWT) Climate-Biome Shift Project (Ca Cliomes) were collaborative efforts that used progressive clustering methodology, existing land cover classifications, and historical and projected climate data to identify areas of Alaska, the Yukon, and NWT that are likely to undergo the greatest or least ecological pressure, given climate change. Project results and data presented in this report are intended to serve as a framework for research and planning by land managers and other stakeholders with an interest in ecological and socioeconomic sus- tainability .