The world is going underwater?…Really?

By Die kalte Sonne
(Translated/edited, subheadings by P. Gosselin)

“Der Spiegel” has an in-house columnist on climate issues: Stefan Rahmstorf from PIK Potsdam. His latest prank: “Why the sea level is rising faster and faster“. He writes in the introduction, citing data:

The rate of rise has doubled during this period, from 2.1 to 4.8 mm per year.”

We want to check this and find something: the European data from “Copernicus”. They cover the period from 1993 to March 2020, so they are very recent. Now we search for the trend increase claimed by Rahmstorf and calculate 5-year trends of the global measured values up to the year plotted on the abscissa:

Fact: No long term trend change

Indeed we find the trend increase: if the 5-year trends were quite accurate at 3 mm/year until 2003, they dropped until 2011, after…