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by gcanyon
1267 days ago
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https://grace.jpl.nasa.gov/resources/30/greenland-ice-loss-2... That says that loss over the past 19 years is 5 meters; that's less than a millimeter per day. You're proposing a melt up to 500 times faster. https://en.wikipedia.org/wiki/Greenland_ice_sheet#Future_ice... That says that the fastest plausible scenario has the ice sheet melting in 1000 years, while the greater likelihood is 10,000 years. And that's if/after we cross temperature thresholds we're not guaranteed to cross. Nowhere does it entertain the whole thing going in decades. If you have credible sources that argue for the possibility of decades, or even a century or two, you should add that to the page. |
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Apart from the fact that all of this relies only on the data we have (we'll discover many more chaotic systems and tipping points, amplifying feedback etc), it also says nothing about what happens at 3.5°C or 4°C warming for Greenland (important precision, as Greenland itself is warming at a much larger rate than the planet globally).
And no, I have no reference to add, only to be cautious and reminding that everybody has been way too much optimistic.