Old Rocks
Diamond Member
Ice molecules have an additional side versus water. This should actually be a contraction right? Land deformation due to the weight of ice sounds like the current actions are a correction.
What "additonal side" are you talking about? What are you saying is contracting? Melting is due to the weight of the ice?!?! Your last sentence needs some explanation!
The reason why the land is isostatically rebounding is because during the last ice age the weight of the ice on the continental landmass was forced down. Since the ice melted 10,000 years ago the land has been rebounding back to it's pre ice age elevation.
In other words it is quite normal. It also tells you that the ice was even THINNER (in other words it was warmer) beforehand because the land hasn't rebounded to it's normal level yet.
Well yes, the ice ages only began about 2 million years ago. And there have been quite a number of them, with interglacial periods. But it has been nearly 15 million years since we have had the amount of CO2 in the atmosphere that is there today.