If you are young or middle aged and planning for retirement by the sea, it might be prudent to look for something, say, 8-10 meters above sea level.  And while nonlinear processes could result in melting faster than current projections, it is unlikely that any process, other than a large meteor impact, could bring about a rise of even a meter in  a couple of years.  But one wouldn't want to try to sell one's retirement home when water is lapping at the front step. To me a one meter+ rise is quite conceivable, and perhaps likely, over a forty year period.  

"It is not necessary to have hope in order to persevere."