CDRmare (2023) Knowledge summary, Artificial upwelling: More power for the ocean’s biological carbon pump. . CDRmare Research Mission, 2 pp. DOI 10.3289/CDRmare.30.

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Abstract

Algae, zooplankton and fish are among the key players in the biological carbon pump that allows the ocean to naturally remove carbon dioxide from the atmosphere and store it at great depths. However, for this mechanism to function optimally, it needs nutrients, which are lacking in many places, at least in the light-flooded surface water. By pumping up nutrient-rich deep water, humans could remedy this nutrient deficiency. But whether artificial upwelling would actually have an effect on the climate, what risks it would entail and whether it could be technically and legally implemented on a large scale, is still uncertain. The research mission CDRmare provides

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