[Barrin92]

As the article states one of the functions of the island is actually to protect the rest of the land from rising sea levels because it will involve building advanced flooding protections.

(Also as a side note, a 0.3m rise doesn't sound like much, but that is an enormous mass of water. IIRC a rise of that level would destroy more than a quarter of the land of most American coastal cities)

[jessriedel]

That 1-foot sea level rise destroying a quarter of American costal city land sounds wrong to me. I think you may be recalling wrong.

[yitianjian]

It may be "putting at risk" - I can easily imagine that most seawalls aren't 1 foot above high water line but are designed with some safety in mind for storms and such, but now are at risk to smaller storms.