International Joint Commission, a teamwork of U.S. and Canadian government, in its latest submission on Great Lakes' water quality, show grave concern on recurrence of eutrophication in the lakes.

The commission states climate change as the topmost threat and the major reason behind the re-sprouting of eutrophication in the Great Lakes heritage.

Eutrophication depletes the quality of Great Lakes freshwaters
Rampant growth of eutrophication plants is nurtured due to excess deposits of nutrients, for instance nitrates and phosphorous, in the lake water.