Why are you such an amateur about this?
Seriously... A Wa-Po article? I always look through the source material.
Now the first paper is a broken link. I don't know why the dip-shazbot author didn't link what ever NASA link that is available, instead the stupid idiot linked another site. Now about the author at the Wa-compost:
About
Chris Mooney writes about energy and the environment at The Washington Post. He previously worked at Mother Jones, where he wrote about science and the environment and hosted a weekly podcast. Chris spent a decade prior to that as a freelance writer, podcaster and speaker, with his work appearing in Wired, Harper’s, Slate, Legal Affairs, The Los Angeles Times, The Post and The Boston Globe, to name a few. Chris also has published four books about science and climate change.
What are his climate credentials to understand and explain this? He is definitely a partisan pundit, you should google the books by him.
Maybe you can find in the source material, the text, that justifies his polarized opinion on the topic.
Now in the second paper:
Satellite geodesy has revolutionized the manner in which ice-sheet mass balance is estimated. Since 1998, there have been at least 29 ice-sheet mass balance estimates, based variously on the satellite techniques of altimetry, interferometry, and gravimetry. These estimates, and their respective uncertainties, allow for a combined Greenland and Antarctic ice-sheet mass imbalance of between –676 and +69 gigatonnes (Gt) year−1, equivalent to a mean global sea-level contribution in the range of +1.9 to –0.2 mm year−1. However, much of this spread, which is large in comparison to other ice-sheet imbalance assessments and to the estimated rate of global sea-level rise, is due to the brevity of many satellite surveys (4.5 years, on average) relative to the rate at which ice-sheet mass fluctuates.
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Our reconciliation exercise has highlighted several other issues. Assessments of GrIS mass balance require more careful consideration than was possible here, because the surrounding mountain glaciers and ice caps are included in some, but not all, of our geodetic surveys and because the ice-sheet domains varied in area by 2%. One estimate has put their contribution at ~20 Gt year−1 (94), a value that falls between two we have derived ourselves from ICESat data (10 and 40 Gt year−1). For the EAIS, our mass change estimates exhibit an unsatisfactory spread, with results from the IOM and LA techniques falling consistently lower and higher than the mean value we have derived (table S2).
link (for those with full access):
A Reconciled Estimate of Ice-Sheet Mass Balance
Interesting that at one end, they claim the net result of the two might be positive ice. They say there are several issues, and there are unsatisfactory spreads.
The science is far from settled.