No scientific consensus has been reached yet as to how a possible acceleration could be separated from intrinsic climate variability in sea level records. (kaltesonne.de)
However, the uncertainties in the geological sea level record are substantial, associated with sparse sampling, uncertainties in the proxy methods and uncertainties in the analysis methods. (judithcurry.com)
However, this event is not seen in all past sea level records and new evidence suggests that ice melting may have begun much earlier. (giss.nasa.gov)