Sea-ice loss clearly linked to ocean heat transport increase

On the one hand, the strong decrease in sea-ice area (SIA) and volume (SIV) in the wide Atlantic experiment (Figs. 3-4 left panels of the Atlantic and Pacific SST experiments) is clearly linked to the strong increase in ocean heat transport (OHT) at the Barents Sea Opening (Fig. 6 top panel of the Atlantic and Pacific SST experiments). On the other hand, the strong decrease in SIA and SIV in the wide Pacific experiment (Figs. 3-4 right panels of the Atlantic and Pacific SST experiments) is clearly linked to the strong increase in OHT at the Bering Strait (Fig. 7 bottom panel of the Atlantic and Pacific SST experiments).