Schlagwort: iron fertilization

New Publications

Rohling (2023): Marine methods for carbon dioxide removal: fundamentals and myth-busting for the wider community

Eelco J Rohling IN: Oxford Open Climate Change, kgad004, https://doi.org/10.1093/oxfclm/kgad004

This review outlines the basic operation of the marine carbon cycle in straightforward terms, with some simplifications, to help advance the debate among the wider community. Break-out boxes provide additional detail where desired, and references (and the sources cited therein) provide avenues for further study. The review then discusses two potential marine methods for atmospheric carbon removal that are thought to offer the greatest potential in terms of carbon removal mass: ocean iron fertilization and ocean alkalinity enhancement.

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Media

Financial times – Ocean fertilisation revived as climate change alarm grows

Clive Cookson on ft.com

„…This renewed interest has also given a new lease of life to ocean-based methods of carbon dioxide removal (CDR). While fertilisation to stimulate the growth of green phytoplankton (microscopic algae), which absorb CO₂ in nutrient-poor waters, will be used in the Alaska and New England projects, there are other methods. One is to counter the growing acidity of seawater as it absorbs CO₂ by adding alkaline minerals, enhancing its absorptive capacity.“

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New Publications

Yuan, Peng; Liu, Dong (2021): Proposing a potential strategy concerning Mineral-enhanced Biological Pump (MeBP) for improving Ocean Iron Fertilization (OIF)

Yuan, Peng; Liu, Dong (2021): Proposing a potential strategy concerning Mineral-enhanced Biological Pump (MeBP) for improving Ocean Iron Fertilization (OIF). In Applied Clay Science 207, p. 106096. DOI: 10.1016/j.clay.2021.106096.

„To address the low efficiency of the vertical C export of OIF, a potential strategy for enhancing oceanic biological pump using clay minerals, so-called mineral-enhanced biological pump (MeBP), is proposed herein.“

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New Publications

Ming, Tingzhen; et al. (2021): A nature-based negative emissions technology able to remove atmospheric methane and other greenhouse gases

Ming, Tingzhen; Richter, Renaud de; Dietrich Oeste, Franz; Tulip, Robert; Caillol, Sylvain (2021): A nature-based negative emissions technology able to remove atmospheric methane and other greenhouse gases. In Atmospheric Pollution Research. DOI: 10.1016/j.apr.2021.02.017.

„As some anthropogenic emissions cannot be zero, to compensate them it will be necessary to remove GHGs from the atmosphere. Among possible methods, the Iron Salt Aerosol (ISA) offers new possibilities, including removal of methane and several other GHGs, as well as carbon dioxide.“

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New Publications

Yamamoto, Akitomo; et al. (2019): Glacial CO2 decrease and deep-water deoxygenation by iron fertilization from glaciogenic dust

Yamamoto, Akitomo; Abe-Ouchi, Ayako; Ohgaito, Rumi; Ito, Akinori; Oka, Akira (2019): Glacial CO2 decrease and deep-water deoxygenation by iron fertilization from glaciogenic dust. In Clim. Past Discuss. (under review). DOI: 10.5194/cp-2019-31.

„In this study, we report the significance of iron fertilization from glaciogenic dust for glacial CO2 decrease and deep-water deoxygenation using our numerical simulation, which successfully reproduces the magnitude and large-scale pattern of the observed oxygen changes from the present to Last Glacial Maximum.“

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New Publications

Lauderdale, Jonathan Maitland; et al. (2020): Microbial feedbacks optimize ocean iron availability

Lauderdale, Jonathan Maitland; Braakman, Rogier; Forget, Gaël; Dutkiewicz, Stephanie; Follows, Michael J. (2020): Microbial feedbacks optimize ocean iron availability. In Proceedings of the National Academy of Sciences of the United States of America. DOI: 10.1073/pnas.1917277117.

„Dissolved iron is quickly lost from the ocean, but its availability to marine microbes may be enhanced by binding with organic molecules which, in turn, are produced by microbes. We hypothesize this forms a reinforcing cycle between biological activity and iron cycling that locally matches the availability of iron and other nutrients, leading to global-scale resource colimitation between macronutrients and micronutrients, and maximizing biological productivity.“

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