For those interested in what some of the major cities concerned with sea level rise are doing, here are some sites from the City of Boston regarding their efforts in Boston Harbor.
See the Boston Harbor Association site, which is the source of their new report titled Designing With Water. Both an executive summary (18 pages) and a full text report (72 pp) are available there.
Note that subsidence is about equal to the rate of sea level rise, and more certain.