My pet theory on the ice ages

Is climate change making Earth 'EXPAND'? 

Melting ice sheets could be altering the shape of our planet

At the surface, Antarctica is a motionless and frozen landscape.
Yet hundreds of miles down the Earth is moving at a rapid rate, new research has shown.

The study, led by Newcastle University and published this week in Earth and Planetary Science Letters, explains for the first time why the upward motion of the Earth's crust in the Northern Antarctic Peninsula is currently taking place so quickly.

But GPS data collected by the international research team, including experts from Newcastle University, Durham University, and the University of Colorado has revealed that the land in this region is actually rising at a phenomenal rate of 0.6 inches (15 mm) a year – much greater than can be accounted for by the present-day elastic response alone.

My pet theory says that the sudden melting of the ice sheets cause volcanic eruptions which darken the sky and restart the ice age.