Abstract
HARRISS1 recently published a silica budget for the ocean from which he concludes that the losses outweigh the gains by something like 8 × 1015 g yr−1 (Table 1). At this rate only about three centuries would be required to reduce the average silica content of seawater to 0.2 p.p.m., the minimum concentration supposed adequate to support diatoms.
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References
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GREGOR, B. Silica Balance of the Ocean. Nature 219, 360–361 (1968). https://doi.org/10.1038/219360b0
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DOI: https://doi.org/10.1038/219360b0
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