Turbulent mixing in the deep waters of the Southern Ocean, which has a profound effect on global ocean circulation and climate, varies with the strength of surface eddies -- the ocean equivalent of storms in the atmosphere -- and possibly also wind speeds. A new study is the first to link eddies at the surface to deep mixing on timescales of months to decades. This new insight into how the Southern Ocean behaves will allow scientists to build computer models that can better predict how our climate is going to change in the future....