[euroderf]

But it can't be so for the long term, can it?, if projected sea rise is like over ten meters.

[tpmx]

As an example: 10k years ago during the last major ice age, Stockholm was 150 meters below the current sea level. The land is springy...

(https://sv.wikipedia.org/wiki/Landh%C3%B6jningen_i_Stockholm - use Google Translate.)

In 2009 a dock needed to lowered by 0.5 meters to keep up with the land rise.

[euroderf]

AFAIK there's not the same phenomena in Helsinki. Is it so much less springy across the gulf ?

[tpmx]

Seems odd...