Sea-level doom from Antarctic melting

.. has hit media recently so let's take a look here:

ITGC Thwaites Glacier

Thwaites glacier melt is now raising sea level by about 2 millimeters per year (within total 3.5 to 4 mm/yr). If it all goes, would increase sea level by 65 cm. Ice guys think that could happen in about 2 centuries.

Other ice contributes to sea-level rise but all taken together seem unlikely to raise sea level by > 1 meter by year 2100. That's not enough to trash most global commercial ports (but maybe a few). It would be enough to harm ~ half billion global residents, mostly poor people.

Most important here is that oceans have already been warmed by +CO2. Holding that line at current level will not prevent it. Baked in.

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Separately we could consider west Antarctic ice sheet mostly held back by Thwaites. It melted has ~ 3 meters of sea-level rise, but would require more centuries. Most other Antarctic ice looks very stable now see link above.

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Other things that future +CO2 can do, including +T and increased climate variability could be limited by not making CO2 higher. They have much shorter time controls. I think it merits attention, what we can or cannot do.