Oceanography: Freshened from the south.

The article focuses on the low-salinity water in the Nordic Seas and the North Atlantic Ocean. It relates the study by M. Glessmer and colleagues which shows that the salinity changes in the Nordic Seas between 1965 and 1995 are caused by the inflow of low-salinity waters from the North Atlantic across the Greenland-Iceland Ridge. It mentions that observational data and numerical hindcast simulations are used to assess the salinity anomalies in the Nordic Seas.