An international team of researchers headed by scientists from the Alfred Wegener Institute has gained new insights into the carbon dioxide exchange between ocean and atmosphere,thus making a meaningful contribution to solving one of the great scientific mysteries of the ice ages. In the past 800000 years of climate history, the transitions from interglacials and ice ages were always accompanied by a meaningful reduction in the carbon dioxide content in the atmosphere. It then fell from 280 to 180 ppm (parts per million). Where this large amount of carbon dioxide went to and the processes through which the greenhouse gas reached the atmosphere again has been controversial until now. The scientists absorb now managed to locate a major carbon dioxide reservoir at a depth of 2000 to 4300 metres in the South Pacific and reconstruct the details of its gas emission history. Their new findings absorb been published open access in the scientific journal Nature Communications.
Source: phys.org