[jeffbee]

While I can see the logic behind how long it would take to melt all this ice, what about the risk that it will suddenly (in the long view) slide off and start floating around? That will raise sea level by the same amount without needing to melt.

[bmismyname]

It's worth noting, the last time there was this much CO2 in the atmosphere (>400ppm), sea levels were significantly higher. Estimates are all over the map, but most of them put global sea at least 10m above our current levels.

A few sources:

https://www.noaa.gov/news-release/carbon-dioxide-now-more-th...

https://www.nature.com/articles/s41586-019-1543-2?proof=t

https://www.science.org/doi/10.1126/science.1233137

https://royalsocietypublishing.org/doi/10.1098/rsta.2012.029...

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/200...

EDIT: Fix words.