In my former career, the salinity of the seas was always an ever present factor, that you had to take into account, even when not particularly thinking of it.
This may account for a hypothesis that has come to mind, to account for the fact that despite one of the warmest years on record, the north east coast had record cold. I suspect that the ice melt has left a layer of cold fresh water over the denser warm sea water of the Gulf Stream thus limiting the ability of that current from moderating the climate as in years past. If New England has a cooler than usual Summer, it may further the hypothesis. If it were to be true, that the ice melt has reached proportions high enough to affect the climate, it might bode really badly for our planet as a whole.