Caption: As the U.S. government builds on its $1 billion investment to clean up the Great Lakes, maps like these could help guide new remediation efforts. The maps show where environmental stress is greatest and where combinations of environmental factors — pollution, invasive species and climate change — are having their greatest impacts.
Source: Great Lakes Environmental Assessment and Mapping (GLEAM) Project, http://www.greatlakesmapping.org
High-resolution JPEG