Stormwater Matters Campaign

For centuries, the Little Traverse Bay Watershed, which includes Walloon Lake, the Bear River and its tributaries, Tannery Creek, and over 174 square miles of land both north and south of the Bay itself, has […]

Stormwater Runoff

The next time it rains, watch the water run off your roof, across your driveway, and down the street. Everywhere you go, water is on its way to the nearest […]

Water Use and Diversions

The waters of the Great Lakes are, for the most part, a nonrenewable resource. They are composed of numerous aquifers (groundwater) that have filled with water over the centuries, waters […]

Habitat Loss

Sparkling inland lakes, expansive forests, blue-ribbon trout streams, prairies, bogs, wildlife-rich wetlands, and miles of spectacular beaches … these features make the Great Lakes one of the most magnificent resources […]

International Upper Great Lakes Study

In 2007, the International Joint Commission (IJC) launched a five-year International Upper Great Lakes Study (IUGLS). The IUGLS was established to identify and evaluate potential improvements to outflow regulation of […]

Home Moving

When existing shoreline homes are threatened by high water and erosion, the costs and benefits of moving the structure back from the lakeshore should be weighed along with other alternatives. […]

Frequently Asked Questions about Great Lakes Water Levels

WHAT CAUSES THE WATER LEVELS OF THE GREAT LAKES TO CHANGE? The water levels of the Great Lakes are determined by the amount of water flowing in and out of […]

Influences on Great Lakes Water Levels

Natural Influences on Water Levels HydrologyThe water levels of the Great Lakes are determined by the amount of water flowing in and out of the lakes. Water moves through the […]