[pavlov]

Netherlands is protected by dams. The solid geology of the area has allowed for durable dams to be constructed over centuries.

Places like Florida are going to be severely hit by rising sea levels because so much of the land is porous. You can't build a dam to stop the sea if it seeps in from underground.

[perugolate]

Just out of interest, how tall are the dams?

[pavlov]

The dams in the famous Zuiderzee Works [1] are about 13m high, it seems.

[1] https://en.wikipedia.org/wiki/Zuiderzee_Works