Most atmosphere-ocean general circulation models(GCMs) forced with increasing greenhouse gas concentrationspredict enhanced atmospheric moisture transports tothe high northern latitudes. Together with melting of Arcticsea ice and glaciers, this has led to the expectation of a gradualfreshening of the northern North Atlantic, tending toreduce the strength of the Atlantic Meridional OverturningCirculation (AMOC). Here a multi-member greenhouse gasGCM experiment is used to demonstrate that both the salinityin the North Atlantic and the inflow of Atlantic Waterto the Nordic Seas may increase despite a strong fresheningof the Arctic Ocean and a reduced AMOC.
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