Comment on ‘Lower bounds to future sea-level rise

The paper Lower Bounds to Future Sea-Level Rise (Parker, 2013) bears many similarities to an earlier one (Parker et al., 2013). In particular, the first pair of equations in both papers are almost identical and wrong, as pointed out by Hunter (2013). In addition, a crucial statement in the Abstract suggests that present observations of sea-level rise show no acceleration and therefore cast doubt on present projections of sea-level rise; this conclusion has previously been shown to be false (Hunter and Brown, 2013). It should be noted that this is by no means a comprehensive exploration of all the possible errors in Parker's paper.