donsutherland1 Posted August 20, 2019 Share Posted August 20, 2019 The Greenland Ice Sheet holds 7.2 m of sea level equivalent and in recent decades, rising temperatures have led to accelerated mass loss. Current ice margin recession is led by the retreat of outlet glaciers, large rivers of ice ending in narrow fjords that drain the interior. We pair an outlet glacier–resolving ice sheet model with a comprehensive uncertainty quantification to estimate Greenland’s contribution to sea level over the next millennium. We find that Greenland could contribute 5 to 33 cm to sea level by 2100, with discharge from outlet glaciers contributing 8 to 45% of total mass loss. Our analysis shows that uncertainties in projecting mass loss are dominated by uncertainties in climate scenarios and surface processes, whereas uncertainties in calving and frontal melt play a minor role. We project that Greenland will very likely become ice free within a millennium without substantial reductions in greenhouse gas emissions. https://advances.sciencemag.org/content/5/6/eaav9396 2 Link to comment Share on other sites More sharing options...
Typhoon Tip Posted August 20, 2019 Share Posted August 20, 2019 Within a Millennium seems a bit conserved to me.... Particularly when the GW is accelerating ... I didn't look very closely at their math but on the surface ( heh...pun) they didn't appear to have logr effects due to accelerating variable values... This whole thing with synergy is just not being taken very seriously -probably more like less understood. Unrelated ... but Sanjay Gupta was recently extolling human beings are simply not wired to process the specter of climate change - I further that sentiment by re-iterating some of my recent opine material, related to " ..humans have never responded very well to threats that do not readily appeal via one of the corporeal senses.." - it's commentary routed into the same concepts... and GW/climate change is an insidiously quite stalker. This is particularly true, when the one force that is causing the ballast of the pernicious changes ( Human activity ) is uniquely adaptable ... thus making it easier to deny for readily evading its harmful effects via that same adaptation. I further again that synergistic effects ... acceleration, and gestaltian under-estimates can under calculate ablation ...the atmosphere accelerates further... that complicates their application - I'll have to read the article again... ( I'm on about 7 of these today - my god..) But the ocean levels rise at a greater rate than these linear application of rudimentary mathematics will imply given acceleration. 1 Link to comment Share on other sites More sharing options...
donsutherland1 Posted October 1, 2020 Author Share Posted October 1, 2020 New study: Greenland is losing mass at the fastest rate during the Holocene. https://www.nature.com/articles/s41586-020-2742-6.epdf 1 Link to comment Share on other sites More sharing options...
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