[muawiyah]

Two things ` it doesn't take thousands of years for the ice to build up. It doesn't take thousands of years for the North American ice cap to melt.

The whole business can be pretty precipitous.

[Gondring]

Two things ` it doesn't take thousands of years for the ice to build up. It doesn't take thousands of years for the North American ice cap to melt.

And if the past few million years are an indication, the collapse comes much faster than the build-up. Plus, isostatic rebound still hasn't stablized following the last glacial retreat...with more rapid rebound on the north side of the Great Lakes, they are slowly spilling southward.