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Multi-faceted particle pumps drive carbon sequestration in the ocean
journal contribution
posted on 2023-05-20, 05:39 authored by Philip BoydPhilip Boyd, Claustre, H, Levy, M, Siegel, DA, Weber, TThe ocean's ability to sequester carbon away from the atmosphere exerts an important control on global climate. The biological pump drives carbon storage in the deep ocean and is thought to function via gravitational settling of organic particles from surface waters. However, the settling flux alone is often insufficient to balance mesopelagic carbon budgets or to meet the demands of subsurface biota. Here we review additional biological and physical mechanisms that inject suspended and sinking particles to depth. We propose that these 'particle injection pump' probably sequester as much carbon as the gravitational pump, helping to close the carbon budget and motivating further investigation into their environmental control.
History
Publication title
NatureVolume
568Issue
7752Pagination
327-335ISSN
0028-0836Department/School
Institute for Marine and Antarctic StudiesPublisher
Nature Publishing GroupPlace of publication
Macmillan Building, 4 Crinan St, London, England, N1 9XwRights statement
© Springer Nature Limited 2019Repository Status
- Restricted