https://phys.org/news/2018-08-pacific-ocean-effect-arctic.html

Paleoclimate records show that climate change in the Arctic can be very large and happen very rapidly. During the last deglaciation, as the planet was starting to warm from rising greenhouse gases, there were two episodes of accelerated warming in the Arctic—with temperatures increasing by 15°C (27°F) in Greenland over the course of decades. Both events were accompanied by rapid warming in the mid-latitude North Pacific and North Atlantic oceans.

Using these past changes as motivation for the current study, the research team modeled a series of ocean-to-atmosphere heat flow scenarios for the North Pacific and the North Atlantic. They used the National Center for Atmospheric Research's Community Earth System Model (CESM), to assess the impacts to the Arctic's surface temperature and climate feedbacks.