After this year's hot summer, the Netherlands and the rest of the world can expect another four unusually warm years, according to a new statistical analysis of the world temperature by Sybren Drijfhout of the Dutch meteorological institute KNMI and French colleague Florian Sevellec from the University of Brest, the Volkskrant reports.
In 2017 the average sea level was 11cm above the NAP (Normal Amsterdam's Peil). That is 2cm higher that the former record year, 2007.
Fedor Baart, spokesperson of the research institute Deltares explained the phenomenon to newspaper de Volkskrant.
The sea level expert explained that the record is not surprising at all: "Since 1890 the waters along the coasts are rising about 2mm per year, because of the melting of the polar ices and the glaciers, together with the rise in temperature of the seas."