A key question is not whether sea level is rising, but rather, has there been any acceleration in the rise

Determining GSLR rates is complicated by non-tidal, year-to-year variability in local mean sea level that is one to two orders of magnitude greater than the long-term trend, potentially masking changes in the rate of rise. The cause of this variability is largely unknown, although it has been linked to storms, winds and floods, wind driven Rossby waves, shifts in major ocean currents such as the Gulf Stream, volcanically induced ocean heat content variations, and in the Pacific Ocean, the El Nino Southern Oscillation

meteorological processes drive coastal sea-level variability by redistributing water, heat, and the response of the ocean to atmospheric pressure across the ocean basin

The corrected data are in red and while the regression outputs of this data are in black

their research yields a global sea level rise near 1.1 mm per year which is well below IPCC and other estimates