As executive director of the Great Lakes Observing System, she's leading a campaign to map every meter of the lakes' bottom.

Above: Satellite view of the Great Lakes on a recent clear day (December ... the size of these inland fresh-water seas, which are the world’s largest as a group. They span a west-east distance ...

When the Great Lakes Water Quality Agreement was passed in the 1970s, eutrophication was the big problem. Eutrophication occurs when too many nutrients enter a body of water, increasing the amount of ...

New research suggests an ancient hotspot helped shape the Great Lakes, challenging traditional formation theories.

The Great Lakes region contains nearly 85 percent of North America's surface freshwater, and more than 20 percent of the world's supply of surface freshwater ... [Click here or on the map above for a ...

There’s a glimmer of hope on the horizon for folks who live across Ontario's traditional snowbelts. Frigid temperatures enveloping the Great Lakes have led to a dramatic increase in surface ice ...