Great Lakes Environmental Research Laboratory

The Great Lakes Environmental Research Laboratory (GLERL) is a U.S. government agency focused on studying and protecting the Great Lakes, the largest group of freshwater lakes in North America. It conducts research on various environmental issues, including water quality, ecosystem health, and climate impacts. By gathering and analyzing data, GLERL helps inform policies and practices to maintain the Great Lakes’ natural resources. Its work supports the health of aquatic life, enhances recreational activities, and ensures safe drinking water for millions of people living in the surrounding region.