The ocean's Meridional Overturning Circulation, MOC, plays an important role in Earths biogeochemical cycling and climate on many timescales. The geologic-scale perturbation of anthropogenic climate change raises concern over the future consequences for MOC and related Earth processes, but confident projections of future behavior are not possible yet with current understanding. Paleoceanography can complement modern oceanographic methods and insights into MOC by probing the magnitude, causes and consequences of past MOC behavior. We invite abstracts exploring MOC behavior in the paleo and modern ocean, mechanisms, and impacts through modeling and observational studies over a variety of temporal and spatial scales. Understanding of MOC behavior over recent time is complemented by research on MOC over millennial and greater timescales, so we welcome submissions addressing equilibrium and non-equilibrium MOC states. Recent efforts to overlap traditional paleoclimate data with instrumental observations provide a long-term context for current observational changes and are particularly encouraged.

• PP - Paleoceanography and Paleoclimatology