This online atlas, produced by Environment Canada and the EPA, offers a wealth of information on numerous aspects of the Great Lakes environment. Students and educators can learn about its geology, climate, and groundwater as well as the management strategies and its human history. The abundance of effective diagrams and maps will help users understand the region's processes and characteristics. Individuals can discover the many alarming tribulations within the Great Lakes including toxic contaminants and the major geographic areas of concern. The web site provides facts and figures on the physical features, land and shoreline uses, and water withdrawals and consumptions.