Iron plays thus an essential role in governing the marine primary productivity and the efficiency of biological carbon pump. (news-oceanacidification-icc.org)
With biological carbon as the «silicon» of this century, the possibilities are infinite. (harvardmagazine.com)
On biological carbon storage, much of the science points to the terrestial biological sink for carbon being in some trouble; warming soils mean less carbon storage in soil; plant photosynthesis might get saturated at some point, weaking that sink (plus, all the fires are counteracting that trend), and then there's the future of the permafrost and shallow marine sediments. (realclimate.org)