title: Evolution of the ocean's "biological pump".
authors.affiliation: Bristol Research Initiative for the Dynamic Global Environment, School of Geographical Sciences, University of Bristol, Bristol BS8 1SS, United Kingdom. andy@seao2.org
authors.forename: Andy
authors.initials: A
authors.lastname: Ridgwell
mesh_terms: D001419:Bacteria / Q000378:metabolism*; D018534:Earth, Planet; D012914:Snow