The recent notes by Broecker  and by Smith and Mackenzie  rightfully point out that many oceanographers do not have a clear grasp of the relationship between the oceanic biological pump and anthropogenic CO2 transient. This misunderstanding has unfortunately led some scientists to make misleading claims as to the importance of the biological pump in the anthropogenic transient. It is remarkable that someone who contributed as much to our understanding of the oceanic carbon cycle as Revelle could have incorrectly stated that the biological pump takes up anthropogenic CO2 [Revelle, 199O]. However, both notes go too far when they dismiss the biological pump as being of minimal relevance to global change, with a particular indictment by Broecker of the Joint Global Ocean Flux Study (JGOFS) as having been guilty of “tarnishing the integrity of global change research” by “hitching their wagons to the greenhouse star.”
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