The New York Post links to a study summarized by MDPI from the original published in the Journal of Marine Science and Engineering. The subject is a data based study of sea level changes, done by a Dutch engineer. Climate alarmists have falsely alleged the sea is rising at an accelerating rate; it is not.
Statistical tests were run on all selected datasets, taking acceleration of sea level rise as a hypothesis. In both datasets, approximately 95% of the suitable locations show no statistically significant acceleration of the rate of sea level rise. The investigation suggests that local, non-climatic phenomena are a plausible cause of the accelerated sea level rise observed at the remaining 5% of the suitable locations.
Local phenomena are often a plausible explanation for the locally observed pattern of sea level rise. The majority of the local causes of rapid sea level rise (or drop) appear to be geologic.
On average, the rate of rise projected by the IPCC [Intergovernmental Panel on Climate Change] is biased upward with approximately 2 mm per year in comparison with the observed rate. (emphases added)
Alarmists gotta alarm, apparently. Trust an engineer from the Netherlands to care about actual, measured sea levels; the Dutch have skin in the sea level game.