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I've checked the link in the article. I've sourced the original press release. Where are the pictures?

here https://phys.org/news/2018-10-...
here https://www.bas.ac.uk/project/...
here https://www.bas.ac.uk/project/...

I've checked the link in the article. I've sourced the original press release. Where are the pictures?

here https://phys.org/news/2018-10-...
here https://www.bas.ac.uk/project/...
here https://www.bas.ac.uk/project/...

Fortunately, more knowledgeable people have done more sophisticated analyses of this very hypothetical, and they put their estimates [antarcticglaciers.org] closer to 3.44 meters, aka 11 feet of sea-level rise.

This article (linked in a comment above) says it's much more than that, based on a study by the British Antarctic Survey:

The total potential contribution to global sea level rise from Antarctica is 58 metres, similar to previous estimates but a much more accurate measurement

Of course, your source doesn't say what you says it does, the figure you quoted is for the West Antarctic ice sheet and the Antarctic Peninsula only:

The West Antarctic Ice Sheet has a global eustatic sea level contribution of 3.2 m ...
The Antarctic Peninsula Ice Sheet would contribute 0.24 m to global sea level rise on full melting ...
The East Antarctic Ice Sheet has a sea level equivalent of approximately 60 m

Yes, it's not likely that all that ice will melt any time soon, we should be much more worried about things like permafrost melting or a massive amount of methane clathrates being released as the ocean warms, but at least get the figures right.

These aren't heated significantly by whatever heat might be trapped by slightly more CO2 -- despite what politicians say, seeing as this whole Environment business has become more of just that, with excuses for taxation and making life more difficult for everyone. Unless you pay extra of course.

Instead, just the other week, there was news about some large hot magma plumes being present underneath the Twaites Glacier and other nearby areas, and that is what is heating up this ice. So it may still break out and put a lot of water into the ocean but for different reasons.

What does a "normal global average" mean? What is normal and what is natural variation?

The "years before present" in one of those is years before about 2000.
I thought xkcd put it well. It's not just the temperature but the rate of change of temperature which is unnatural.

What does a "normal global average" mean? What is normal and what is natural variation?

I distinctly remember BAS wanting a database admin for 3 years, including wintering, at Halley and Rothera. Those bases are much smaller then Amundsen-Scott. I'm pretty sure there was an opening for an IT support person there too, also wintering.