Very good ice sheet dynamics presentations from AGU 2015 are available on youtube or on AGU page. https://www.youtube.com/watch?v=3p9uRxX95f4 https://www.youtub

Very good ice sheet dynamics presentations from AGU 2015 are available on youtube or on AGU page. https://www.youtube.com/watch?v=3p9uRxX95f4 https://www.youtube.com/watch?v=3p9uRxX95f4 You can think of an ice sheet like a cathedral. Once you melt away the side buttress, a large portion of the whole thing falls into the sea. Many large glaciers have surprisingly small "gatekeepers". It's a dynamic process [x]. We have never seen a massive ice sheet collapse so don't know for certain if it takes two decades or two centuries. The potential to raise the sea level is large, many meters. This now adds the ocean dynamics there, but I wonder if I got this right: The melt water has no salt, is thus less dense and hence stays on top and just keeps on warming and warming and will then melt the ice a lot quicker. x: by dynamic I mean that one can't just get a linear relationship between temperature and melt rate. Think more of a collapsing building.