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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, T
The 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

Nature

Volume

568

Issue

7752

Pagination

327-335

ISSN

0028-0836

Department/School

Institute for Marine and Antarctic Studies

Publisher

Nature Publishing Group

Place of publication

Macmillan Building, 4 Crinan St, London, England, N1 9Xw

Rights statement

© Springer Nature Limited 2019

Repository Status

  • Restricted

Socio-economic Objectives

Climate change models

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