[henearkr]

The tipping point for Greenland is said to be 2.5°C, and at that tipping point the minimum melting time is said to be 1000 years.

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.

[henearkr]

And I want to precise that I am not speaking about Antarctica.

I don't think that Antarctica will lose its ice cover. Only probably its ice shelves, and also some glaciers will shrink, but overall it'll stay white.