http://arctic-news.blogspot.co.uk/2013/ ... -eyes.html
Another significant global warming positive feedback that will add even more to future temperature rises has been identified by researchers from the Max Planck Institute for Meteorology in Hamburg, Germany. End result: Perhaps another half a degree of warming this century.
New research just published in Nature Climate by Katharine Six and her colleagues shows that as oceans become more acidic (by absorbing increasing volumes of carbon dioxide from the atmosphere to form carbonic acid), the amount of a compound called dimethylsulphide (DMS) in the ocean decreases.
So what? The researchers say that marine DMS emissions are the largest natural source of atmospheric sulphur, and changes in their strength have the potential to alter the Earth’s radiation budget.