Great Lakes Must prepare for climate migration says new publication by CLARS team members
Climate change could reshape where people live across North America, and the Great Lakes region may increasingly become a destination for climate migrants. A new literature review by Avneet Kaur and CLARS PI, Dr. Gail Krantzberg argues that researchers and policymakers must look beyond why people leave vulnerable areas and pay greater attention to what happens when they arrive. Published in the Journal of Great Lakes Research, the review examines decades of research on climate-induced migration and identifies a major gap: relatively little research focuses on receiving communities.
The Great Lakes’ abundant freshwater, moderate climate, infrastructure and economic opportunities have led researchers to identify the region as a potential destination for people seeking relief from extreme heat, wildfire, flooding and other climate risks. However, the authors caution that migration is rarely driven by climate change alone.. Economic opportunities, housing costs, employment, family networks, political conditions and access to resources all influence whether people move and where they settle. Importantly, those most affected by climate change may not always be able to migrate. Moving requires financial resources, information and social connections, meaning more affluent and mobile populations may be more likely to reach potential destinations. For Great Lakes communities, this creates important questions. How many climate migrants could arrive? Where would they live? Could housing, employment, healthcare, water and wastewater systems accommodate population growth? And how can newcomers be integrated without increasing pressures on existing residents?
The review highlights Duluth, Minnesota, as an early example. The city has been promoted as a potential “climate haven” because of its relatively moderate climate and access to Lake Superior. Duluth has begun considering climate migration in its planning, while residents and Indigenous communities have raised concerns about housing affordability, gentrification and the impacts of population growth. These questions are directly relevant to the CLARS project, which focuses on building climate resilience through research, collaboration and locally informed adaptation strategies. Kaur and Krantzberg’s review reinforces the need to consider migration as part of broader regional resilience planning. The authors do not predict a mass migration to the Great Lakes. Instead, they argue that uncertainty makes preparation more important. Understanding why people move is only the first step. Communities also need to understand their capacity to receive newcomers and ensure that population growth strengthens, rather than undermines, social and climate resilience.
For the Great Lakes, the emerging challenge is therefore not simply whether climate migrants will arrive, but whether communities will be ready when they do.
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