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Multi-faceted particle pumps drive carbon sequestration in the ocean

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Abstract
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.
Item Type: | Article |
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Authors/Creators: | Boyd, PW and Claustre, H and Levy, M and Siegel, DA and Weber, T |
Keywords: | carbon sequestration, particle pump, global climate, carbon budgets |
Journal or Publication Title: | Nature |
Publisher: | Nature Publishing Group |
ISSN: | 0028-0836 |
DOI / ID Number: | 10.1038/s41586-019-1098-2 |
Copyright Information: | © Springer Nature Limited 2019 |
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Item Statistics: | View statistics for this item |
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