Iron fertilization is the intentional introduction of iron-containing compounds (like iron sulfate) to iron-poor areas of the ocean surface to stimulate phytoplankton production. This is intended to enhance biological productivity and/or accelerate carbon dioxide (CO 2 ) …

2023年11月14日 · Iron fertilization is a Carbon Dioxide Removal (CDR) technique that would artificially add iron to the ocean’s surface to stimulate growth of phytoplankton. Scientists are researching the viability of this technique to mitigate climate change.

2024年2月1日 · In the context of global climate change, ocean iron fertilization (OIF) has been suggested as a potential geoengineering strategy to enhance the growth of marine phytoplankton, subsequently promote the ocean carbon sink, and ultimately regulate atmospheric carbon dioxide (CO2) and mitigate climate change.

2008年1月11日 · Ocean iron fertilization (OIF), one of several ocean methods proposed for mitigating rising atmospheric CO 2, involves stimulating net phytoplankton growth by releasing iron to certain parts of the surface ocean.

By detangling the relationship among marine primary productivity, iron availability and oceanic environments in different geological periods, this review can offer some new insights for evaluating the impact of ocean iron fertilization on removing CO 2 from the atmosphere and regulating the climate.

2023年5月25日 · In this work, we demonstrate that Fe-rich fluids emitted by shallow hydrothermal venting directly fertilize the overlying surface ecosystem, which induces intense diazotroph activity that supports enhanced carbon export fluxes, with a C sequestration efficiency higher than those from artificial mesoscale Fe-addition experiments.

2022年7月7日 · Ocean iron fertilization (OIF), an ocean-based geoengineering technique, aims to increase the rate of atmospheric CO2 transfer to the deep ocean by stimulating the biological pump through the addition of iron (a key nutrient) to the surface of the ocean.

2010年9月1日 · The potential of ocean iron fertilization (OIF) to enhance the oceanic carbon sink is questioned in particular due to its uncertain efficacy and side effects. This has led some authors to conclude that research and in particular large-scale experiments on OIF should not be further pursued (e.g. [5]). This article challenges this view and argues ...

We are encouraged by analyses of natural and deliberate ocean iron fertilization (OIF) field experiments that have demonstrated low deployment costs and high global capacity of OIF, up to Gt CO 2 /yr scales, and even higher if a wider range of settings are considered.

2004年4月16日 · An unresolved issue in ocean and climate sciences is whether changes to the surface ocean input of the micronutrient iron can alter the flux of carbon to the deep ocean. During the Southern Ocean Iron Experiment, we measured an increase in the flux of particulate carbon from the surface mixed layer, as well as changes in particle cycling below ...