In reading the question What would the geology and climate of a supposed landmass near the pole be like, assuming a thoroughly warmer planet?, it came to mind that another factor may cause a shift in the long term climatic patterns should the Greenland Ice sheet continue melt - the effects of a 'taller' Greenland, due to its isostatic rebound.
According to the Polar Field Services website,
The enormous weight of the ice down-warped the land surface, causing the material underlying these land masses to slowly flow away. The physics are similar to the reasons a balloon deforms when you press down on it. In the same way that the balloon reshapes itself when you remove your hand, the land actually pops back up over several thousand years when the weight of expansive ice sheets no longer weighs down the underlying area. In Greenland, where the ice sheet is currently receding, the island is actively rebounding.
Given that there are already peaks of up to about 3.7km in altitude, my related questions are:
- How high would these peaks go?
- What effect would a 'taller' Greenland have on climatic patterns?