 850-year global climate model simulation shows that variations in the spatial structure of the North Atlantic Oscillation, NAO, are linked to the Atlantic Multidicatal Oscillation, AMO, which changes the zonal position of the NAO centres of action, affecting regional climate variables such as sea surface temperature, ice extent, and river runoff in the Baltic Sea. This article was authored by Florian Borgel, Claudia Fraun, Thomas Newman, and others.