Can ocean iron fertilization mitigate ocean acidification?

@article{Cao2010CanOI,
  title={Can ocean iron fertilization mitigate ocean acidification?},
  author={L. Cao and K. Caldeira},
  journal={Climatic Change},
  year={2010},
  volume={99},
  pages={303-311}
}
Ocean iron fertilization has been proposed as a method to mitigate anthropogenic climate change, and there is continued commercial interest in using iron fertilization to generate carbon credits. It has been further speculated that ocean iron fertilization could help mitigate ocean acidification. Here, using a global ocean carbon cycle model, we performed idealized ocean iron fertilization simulations to place an upper bound on the effect of iron fertilization on atmospheric CO2 and ocean… Expand

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References

SHOWING 1-10 OF 16 REFERENCES
Southern Ocean deep-water carbon export enhanced by natural iron fertilization
TLDR
Data from the CROZEX experiment in the Southern Ocean is reported to test the hypothesis that the observed north–south gradient in phytoplankton concentrations in the vicinity of the Crozet Islands is induced by natural iron fertilization that results in enhanced organic carbon flux to the deep ocean. Expand
Climate change, ocean processes and ocean iron fertilization
TLDR
Increased remineralization associated with the increased downward export of organic carbon particles would result in increased production of the third most important long-lived greenhouse gas, N2O, the magnitude of this effect is poorly known. Expand
Effects of patchy ocean fertilization on atmospheric carbon dioxide and biological production
[1] Increasing oceanic productivity by fertilizing nutrient-rich regions with iron has been proposed as a mechanism to offset anthropogenic emissions of carbon dioxide. Earlier studies examined theExpand
Three‐dimensional simulations of the impact of Southern Ocean nutrient depletion on atmospheric CO2 and ocean chemistry
Surface nutrient concentrations in the Southern Ocean are an important indicator of the atmosphere-ocean chemical balance that played a key role in ice-age reduction of atmospheric pC0, and wouldExpand
Globalizing results from ocean in situ iron fertilization studies
[1] Despite the growing number of in situ iron fertilization experiments, the efficiency of such fertilization to sequester atmospheric CO2 remains largely unknown. For the first time, a global oceanExpand
Oceanography: Anthropogenic carbon and ocean pH
TLDR
It is found that oceanic absorption of CO2 from fossil fuels may result in larger pH changes over the next several centuries than any inferred from the geological record of the past 300 million years. Expand
glacial-interglacial Co2 change : the iron hypothesis
Several explanations for the 200 to 280 ppm glacial/interglacial change in atmospheric CO2 concentrations deal with variations in southern ocean phytoplankton productivity and the related use orExpand
Ocean iron fertilization and international law
Intentional ocean fertilization and the commercial sale of associated carbon offsets raise a number of issues in international law. On the one hand, states are obliged to adopt adaptation andExpand
Mesoscale Iron Enrichment Experiments 1993-2005: Synthesis and Future Directions
TLDR
The findings of these 12 FeAXs reveal that iron supply exerts controls on the dynamics of plankton blooms, which in turn affect the biogeochemical cycles of carbon, nitrogen, silicon, and sulfur and ultimately influence the Earth climate system. Expand
Potential Impacts of CO2 Injection on Deep-Sea Biota
TLDR
In their Perspective, Seibel and Walsh warn that even small perturbations in COor pH may have important consequences for deep-sea ecosystems and for global biogeochemical cycles. Expand
...
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