Biogeochemical Impacts of Dust on the Global Carbon Cycle - Mineral Dust: A Key Player in the Earth System - page 371

Fig. 14.7 Maps of factor most limiting phytoplankton growth rates for different phytoplankton
groups during summer months in each hemisphere. Percentages refer to percent of total ocean area
where limitation by each element is predicted (Moore et al. 2004 )
The inputs of dust to the ocean were much higher during the last glacial
maximum and the increased iron supply from that dust probably increased primary
productivity and contributed to the lower CO 2 levels and associated colder climate,
although it was probably not the main driver of the change in CO 2 concentrations
(Jickells et al. 2005 ). Dust supply may change in the future due to climate change