I went back to Greenland after a 4 year hiatus with scientist and Dark Snow buddy Marek Stibal of Charles University.
His team is investigating some puzzling reports of methane emissions from melting glaciers.
Might be something we should know more about.

Nerd note: The technomolological term for pushing water up is artesian pressure.
In this case the confining layer includes an ice cap.
https://www.ngwa.org/images/default-source/default-album/groundwater/confined-unconfined.jpg
Very interesting discovery and it will be certainly be clearer when the amount of potential methane exists in this and similar catchments is quantified and scientists are surer of the threat.