A simplified mannequin of biogeochemical cycling- entitled Biology Light Iron Nutrient and Fuel model (BLING) has been developed on account of a collaboration between Anand Gnanadesikan (Oceans and Climate Group), Eric Galbraith and Mike Hiscock (AOS Program) and John Dunne (Local weather and Ecosystems Group) based mostly on intensive collaborations over the years with Jorge Sarmiento's group. Wo