writes in to let us know that a major underwater current called the Tasman Outflow
has been discovered by Australian scientists. It helps to regulate the Earth's climate by providing water flow between three oceans in the southern hemisphere. Relatedly, a senior climate scientist has called for the establishment of a Southern Hemisphere network of deep ocean moorings
, to complement the network already established in the North Atlantic. The intent is to detect any change in ocean circulation that may adversely influence global climate.