“According to a February study in the Journal of Climate, Lake Ontario lost the most ice cover (88 per cent), with Lake Superior placing second at 79 per cent over a 38-year period. Lake St. Clair — which is part of the Great Lakes system but is not normally considered one of the Great Lakes — lost the least (37 per cent). Researchers used historical satellite measurements of the Great Lakes’ ice cover from 1973 to 2010.”

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