This discussion suggests three important conclusions: (i) the effect of changes
in terrestrial water storage on sea level may be
considerable; (ii) the net effect on sea level could be of either sign, and (iii) the rate has increased over the last
few decades (
in the assessment of Gornitz et al. (1997) from near zero at the start of the
century to 0.8 mm / yr
in 1990).