Over the last 40M years, when CO2 was at current levels (400ppm), sea level was +9 to +31 meters higher. We need to reduce to 280ppm to start rebuilding ice.
https://www.pnas.org/content/110/4/1209
Coastal cities are going to move.
https://www.pnas.org/content/110/4/1209
Coastal cities are going to move.
The +9m to +31m isn't from simulations. It's from ice core sample and sediment analysis.
"Most estimates of global mean sea-level rise this century fall below 2 m."