Articles | Volume 15, issue 3
Clim. Past, 15, 981–996, 2019
https://doi.org/10.5194/cp-15-981-2019

Special issue: Ocean deoxygenation: drivers and consequences – past, present...

Clim. Past, 15, 981–996, 2019
https://doi.org/10.5194/cp-15-981-2019
Research article
 | Highlight paper
04 Jun 2019
Research article  | Highlight paper | 04 Jun 2019

Glacial CO2 decrease and deep-water deoxygenation by iron fertilization from glaciogenic dust

Akitomo Yamamoto et al.

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Latest update: 18 May 2022
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Short summary
Proxy records of glacial oxygen change provide constraints on the contribution of the biological pump to glacial CO2 decrease. Here, we report our numerical simulation which successfully reproduces records of glacial oxygen changes and shows the significance of iron supply from glaciogenic dust. Our model simulations clarify that the enhanced efficiency of the biological pump is responsible for glacial CO2 decline of more than 30 ppm and approximately half of deep-ocean deoxygenation.