New research suggests even building a giant wall in the sea would not be enough to stop sea level rise stemming from two crucial Antarctic glaciers.
This is exactly why I made sure when buying my house/section that it was more than 5m higher than sea level and inland from the coast. Not that that will mitigate the societal collapse following the glaciers'.
The world might be able to geoengineer saving one maybe two glaciers. But not all of them, not Greenland's icesheet and not the entire Antarctic icesheet.