This work investigates the cumulative ecological degradation of the Great Lakes system resulting from two centuries of industrial expansion and human intervention. William J. Ashworth synthesizes historical records and environmental data to document how navigation, chemical dumping, and atmospheric pollution have fundamentally altered the biological and physical integrity of the region. The text argues that the current state of the lakes is not merely a series of isolated accidents but a predictable outcome of unchecked industrial development.

This text provides a comprehensive, data-driven examination of the anthropogenic pressures placed upon the Great Lakes basin. The analysis offers a sobering look at the intersection of regional economic growth and environmental sustainability.