[Thunder90]

Lake Ontario is the second deepest lake, and it benefits from the warmth from the upstream lakes. It is also further south, and far enough east to have large nor’easters break up the ice on occasion.

[beebuster2000]

thanks. visited toronto recently, apparently in the 1800’s there were times you could cross the lake to the USA.

also, i was surprised to read that the great lakes are only 10,000 years old, that makes them pretty recent

[nascarnation]

Saw some beautiful video of Niagara Falls on TV.
The ice is incredible.

[Robert A Cook PE]

Last October, Antarctica set an all-time record for HIGHEST ever sea ice extents (area) at 19.5 million square kilometers at maximum.

This spring, Antarctica sea ice set a second-high highest sea ice minimum extents.

And, Antarctic sea ice extents has been steadily increasing ever May 2011 through ALL seasons of the year: If this rate of increase continues - which is admittedly uncertain - the Cape Horn passage will be blocked by Antarctic sea ice within 8-10 years!