As the Canadian Tundra melts, will the great lakes overflow their banks, and which cities will be affected?

Answer 1

Lakes are naturally drained by rivers. For a lake to overflow it's banks would require an exceptional amount of water to enter the lake in a very short space of time.

Even in the most severe downpours lakes very rarely overflow. In many cases they're hemmed in by the geography of the land so have nowhere to overflow to. What you'd be more likely to see are the rivers feeding and draining the lakes overflowing.

Tundra, permafrost, ice-caps etc are melting but but the rate at which they're melting isn't sufficient to cause flooding of lakes. It may exacerbate the situation in times of exceptional rainfall but by itself it's not enough.

I don't know enough about the grography of the Great Lakes area to comment on individual towns and cities that may be affected by flooding. Suffice to say that any properties built on flood plains, recliamed land and low lying areas could be at risk.

Answer 2

The Canadian Tundra is not going to melt