I don't know about the arctic but the ice in antarctica is about 1.6 km thick. so that's a 60 metre sea level rise = kent and norfolk are fucked for a start I think.
to put it in presceptive, if ice the size of greenland melted, then you'd see an 20 feets increase.
to put it in presceptive, if ice the size of greenland melted, then you'd see an 20 feets increase.