Zooming in on Greenland

Global Gravity Anomaly Animation over OCEANS f...Image via Wikipedia
From an article which came last fall here is a quote and a plot:

"We use monthly measurements of time-variable gravity from the GRACE (Gravity Recovery and Climate Experiment) satellite gravity mission to determine the ice mass-loss for the Greenland and Antarctic Ice Sheets during the period between April 2002 and February 2009. We find that during this time period the mass loss of the ice sheets is not a constant, but accelerating with time, i.e., that the GRACE observations are better represented by a quadratic trend than by a linear one, implying that the ice sheets contribution to sea level becomes larger with time."

This can be evidence that the melting is non-linear in nature and might be accelerating even more.
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