I have located no accredited scientific studies yet that discuss how the loss of gigatons of ice compressing the entire planets structure from the poles will impact the planet as a whole. With even a basic understanding of mass and physics however one can deduce from that comprehension an irrefutable change will occur in the planets crust. If one were to research the pattern of volcanic activity from the start of human recorded existence alone then one may learn something new. Most of our species fails to think in time, only worried about today, however as the changes in our only planet set in from 'progress' more will be forced to look back over time and reconsider where we failed.
Search for “post-glacial rebound” or “glacial isostatic adjustment”.
This has been thoroughly studied and is well known to geologists, especially in Northern Europe where changes can occur over human time scales.
I remember watching a documentary about a landslide disaster that occurred because clay saturated by salt water had lifted above sea level due to GIA and the fresh rainwater had washed the salt out. Clay without salt ions is more liquid and eventually moved catastrophically.
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.. and pretty much why I worded the first line of my comment above as I did.
Sea level changes, glacial retreats, etc will all change crustal pressures and impact the frequency, placement, and nauture of volcanic activity in times to come.
Not a lot of that in Ethiopa for now though (to the best of my current "haven't specifically looked at the map for this" gut feeling).
