I would also be interested in seeing simple calcs of hydraulic potential with the new bed geometry. I wonder if water is still routed along this canyon?
Ah ha! Much more detail here:
Seems that in some parts of the upper canyon, the ice configuration likely leads water away, but in the lower part, it controls the direction of water flow.
Seems to me, we just need to dynamite it shut and Presto world saved from eventual catastrophic flooding.
Don't everyone thank me at once.
In addition, it's estimated that a complete melting of the ice sheet would increase sea levels by ~24ft and that's not taking into account the larger impact of the rest of the world melting (Antarctic ice sheet is much larger).
Even ignoring sea level rises due to ice loss elsewhere and the fact that the area we're discussing already appears well below sea level, the average ratio of bedrock rise to decrease in ice shelf thickness has been running at about 1:10 in recent years.
Millions might have perished from the global warming and it's adverse weather and sea-line effects, but we could explore Greenland, so who cares about that.
Earth seems to have a lot of built in corrective measures, for both the issues it causes and the ones we think we cause.