Climate change is a deciding factor in record high water levels in the Great Lakes being higher than ever before, a University of Waterloo professor told CTV’s Your Morning on Wednesday. According to government statistics, July water levels for the bodies of water between Canada and the U.S. were at record highs. And this can lead to faster erosion of the coastline and flooding. The flooding this spring and summer along the northern shores of Lake Ontario, the Toronto Islands and some Toronto-area beaches has been particularly troublesome for homeowners and businesses.