North America's Great Lakes are a robust ecosystem that provides a wealth of economic and social benefits for the 40 million people who live on both sides of the border. But the Great Lakes are also at great risk. There are a number of stresses to the ecosystem: population growth and agricultural intensification, the introduction of aquatic invasive species as well as municipal wastewater effluents and industrial discharges. All of these threaten the Great Lakes and require sustained and focused attention. Learn more by watching our new video that depicts some of the challenges facing the Great Lakes and what Environment Canada and our partners are doing keep the Great Lakes great.

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