This volume provides an in-depth look at the remediation and restoration of the forty three most polluted areas of the Great Lakes called Areas of Concern (AOCs). This binational restoration effort is unique in that it has fostered use of locally designed ecosystem approaches to restoring impaired beneficial uses as called for in the Canada–U.S. Great Lakes Water Quality Agreement. In total, thirty-seven Canadian and U.S. scientists contributed to this comprehensive evaluation of what has been achieved and learned from over three decades of remediation and restoration efforts. This book will be an excellent resource to researchers, resource managers, university faculty, and students within the Great Lakes Basin Ecosystem, and others interested in restoring degraded aquatic ecosystems throughout the world. No other volume or textbook provides such a comprehensive evaluation of AOCs. A foreword is provided by Dianne Saxe, former environmental commissioner of Ontario. Leading primary contributors include J. H. Hartig, M. Munawar, L. Richman, S. W. Pickard, M. L. Tuchman, R. Stewart, J. Ridgway, R. K. Sherman, N. T. French, K. C. Williams, G. Krantzberg, and C. McLaughlin.