https://www.sciencedaily.com/releases/2018/07/180723142759.htm

According to the researchers, the sudden shifts of Eemian climate are connected to disturbances in North Atlantic circulation which happened during that time. Today, the warm oceanic currents of the North Atlantic maintain a relatively temperate climate in Europe. The future development of this oceanic circulation has been hard to predict, however, and possible disturbances have not been ruled out.

"These results strongly suggest that the North Atlantic circulation is sensitive to disturbance, with major effects in Northern Europe," says University of Helsinki postdoctoral researcher Sakari Salonen who headed the study.