[RightWhale]

Hapgood had the idea that the earth's crust shifts around from time to time. It is a gradual thing taking 3000 years or so per event, but it gets kind of noisy where the crust sticks to the mantle. Otherwise, the crust will float fairly smoothly. When it starts, there is plenty of seismic activity. Have you checked your global position lately? You could be headed toward a different climate.

[blam]

"Have you checked your global position lately? You could be headed toward a different climate."

That's what I've been hinting at beginning with Etna.