One of the key characteristics of the Great Lakes-St. Lawrence Region is the highly integrated nature of its economy and environment. Many of the region’s key industries rely on its water. Analysis shows that low water levels, primarily driven by climate change, are likely to remain the region’s reality for decades to comes. This poses significant risks to many of the region’s sectors and industries critical to Canada’s and America’s economy. This study will draw on the findings, data analysis, and methodology from Phase One, Low Water Blues: An Economic Impact Assessment of Future Low Water Levels in the Great Lakes and St. Lawrence River to conduct a cost-benefit analysis of proposed adaptations to this low water future.