[aerohead]

There's a team of researchers in Antarctica,from New York University,lead by PhD David Holland,towing ground-penetrating radar,and setting off explosive charges for seismic logging of the Thwaites Ice Shelf/Glacier.They've drilled a half-mile,to under the ice shelf and sent probes to view the grounding line and take measurements.The deepwater,under the ice is 3.6-C above freezing,eating away from below.Lot's of fissures turning up.Enormous icebergs are calving off it.
Thwaites is a 'threshold system',which buttresses continental-borne glaciers.When they go,the glaciers behind them go,which is where sea-level rise will come from.5-feet for the Thwaites system.Same for Pine Island,which is unstable as well.It's moving at 33-feet/day!