Credit: Rebecca Thiele

Invasive garlic mustard -- love it or leave it?

Invasive plants and animals are an expensive problem in the United States -- federal agencies spent more than $104 million last year to control them. But a recent study on invasive garlic mustard shows that it might sometimes be better to leave invasive species alone.

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U.S Coast Guard

Recalling the doomed 'Christmas Tree Ship'

The Christmas spirit is popping up along the waters of the Great Lakes region. In Port Huron, Mich., Santa Claus rode to shore on the Huron Spirit , a boat operated by the Lakes Pilots Association. In Toledo, Ohio, the tug Josephine brought him to the National Museum of the Great Lakes. But the most poignant event of the holiday season was in Chicago , where the sinking of "The Christmas Tree Ship" was remembered recently.

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Latest From Great Lakes Today

Caitlin Whyte

Amid climate change, tiny bug causes big problems

Last of three parts On a rainy day, City Forester Jeanne Grace takes me on a tour of the City Cemetery where tall, evergreen trees hang over many of the graves. Hemlock trees. The cemetery has the peace and quiet of any cemetery, but if you take a closer look at the hemlocks -- reeeal close -- you’ll spot the hemlock woolly adelgid.

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Video: Salt mine lies 1,800 feet under Lake Erie

Have you ever wondered where road salt comes from? One source is the Whiskey Island Cargill Salt Mine, which lies far below the floor of Lake Erie.

New Faces, New Issues

Teddy Roosevelt and John Muir helped launch the nation’s environmental movement more than a century ago. Great Lakes Today explores the forces – and people -behind the transformation of the movement.

Healing Our Waters conference, 2017

Great Lakes Today covered the conference in Buffalo with stories and video interviews.

Environment

The Great Lakes are significantly cleaner today, now that many of the region's factories have closed. But environmental challenges -- including pollution and invasive species -- remain.

Invasive Species

The Great Lakes ecosystem has been severely damaged by more than 180 invasive and non-native species.

History

For centuries, the Great Lakes have served as an important food source and trade route for people living along their shore.

Recreation

The Great Lakes are the home to a wide range of recreation -- from sailboat and powerboat races to fishing tournaments. They're also a draw for tourists.

Shipping

The Great Lakes is often referred to as the "fourth seacoast." U.S. and Canadian lake fleets annually haul upwards of 125 million tons of cargo, including iron ore, limestone and coal.

Regulation

The Great Lakes, which straddle the U.S.-Canada border, are subject to multiple layers of regulation.

Farming

Great Lakes agriculture generates more than $15 billion a year and it accounts for 7% of total U.S. food production. Agricultural practices shape the health of the lakes and the farming economy.

Development

Across the Great Lakes region, the shoreline is being targeted for increased development.