Articles | Volume 22, issue 2
https://doi.org/10.5194/bg-22-355-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-355-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Reviews and syntheses
| 
21 Jan 2025
Reviews and syntheses |
| 21 Jan 2025
| 21 Jan 2025
Review and syntheses: Ocean alkalinity enhancement and carbon dioxide removal through marine enhanced rock weathering using olivine
Luna J. J. Geerts
CORRESPONDING AUTHOR
Geobiology, Department of Biology, University of Antwerp, 2610 Wilrijk Antwerp, Belgium
Astrid Hylén
Geobiology, Department of Biology, University of Antwerp, 2610 Wilrijk Antwerp, Belgium
Filip J. R. Meysman
Geobiology, Department of Biology, University of Antwerp, 2610 Wilrijk Antwerp, Belgium
Department of Biotechnology, Delft University of Technology, Van der Maasweg 9, 2629 HZ Delft, the Netherlands
Related authors
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Silvia Placitu, Sebastiaan J. van de Velde, Astrid Hylén, Mats Eriksson, Per O. J. Hall, and Steeve Bonneville
EGUsphere, https://doi.org/10.5194/egusphere-2025-3020, https://doi.org/10.5194/egusphere-2025-3020, 2025
This preprint is open for discussion and under review for Biogeosciences (BG).
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Marine sediments store organic carbon and help regulate climate. Oxygen-depleted waters are thought to enhance this, however West Gotland Basin sediments show low carbon despite such conditions. We studied the role of mineral protection, which can shield carbon from microbes, and found it limited. This suggests that without physical protection, carbon remains accessible and gets degraded, making mineral protection a key factor in carbon preservation.
This article is included in the Encyclopedia of Geosciences
Astrid Hylen, Nils Ekeroth, Hannah Berk, Andy W. Dale, Mikhail Kononets, Wytze K. Lenstra, Aada Palo, Anders Tengberg, Sebastiaan J. van de Velde, Stefan Sommer, Caroline P. Slomp, and Per O. J. Hall
Earth Syst. Sci. Data Discuss., https://doi.org/10.5194/essd-2025-146, https://doi.org/10.5194/essd-2025-146, 2025
Preprint under review for ESSD
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Phosphorus is an essential element for life and its cycling strongly impact primary production. Here, we present a dataset of sediment-water fluxes of dissolved inorganic phosphorus from the Baltic Sea, an area with a long history of eutrophication. The fluxes were measured in situ with three types of benthic chamber landers at 59 stations over 20 years. The data show clear spatial patterns and will be important for marine management and studies on mechanisms in benthic phosphorus cycling.
This article is included in the Encyclopedia of Geosciences
Tom Huysmans, Filip J. R. Meysman, and Sebastiaan J. van de Velde
EGUsphere, https://doi.org/10.5194/egusphere-2025-447, https://doi.org/10.5194/egusphere-2025-447, 2025
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To examine the potential of "Accelerated Weathering of Limestone" as a carbon capture and storage technique, we compared the different available reactor designs, and assessed their CO2 sequestration efficiencies, resource usage and limitations. We find that large water volumes are required to efficiently remove CO2 from the gas stream and that very small CaCO3 particle sizes and long residence times are required to achieve reasonable CaCO3 dissolution efficiencies.
This article is included in the Encyclopedia of Geosciences
Ulf Riebesell, Daniela Basso, Sonja Geilert, Andrew W. Dale, and Matthias Kreuzburg
State Planet, 2-oae2023, 6, https://doi.org/10.5194/sp-2-oae2023-6-2023, https://doi.org/10.5194/sp-2-oae2023-6-2023, 2023
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Mesocosm experiments represent a highly valuable tool in determining the safe operating space of ocean alkalinity enhancement (OAE) applications. By combining realism and biological complexity with controllability and replication, they provide an ideal OAE test bed and a critical stepping stone towards field applications. Mesocosm approaches can also be helpful in testing the efficacy, efficiency and permanence of OAE applications.
This article is included in the Encyclopedia of Geosciences
Astrid Hylén, Sebastiaan J. van de Velde, Mikhail Kononets, Mingyue Luo, Elin Almroth-Rosell, and Per O. J. Hall
Biogeosciences, 18, 2981–3004, https://doi.org/10.5194/bg-18-2981-2021, https://doi.org/10.5194/bg-18-2981-2021, 2021
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Sediments in oxygen-depleted ocean areas release high amounts of phosphorus, feeding algae that consume oxygen upon degradation, leading to further phosphorus release. Oxygenation is thought to trap phosphorus in the sediment and break this feedback. We studied the sediment phosphorus cycle in a previously anoxic area after an inflow of oxic water. Surprisingly, the sediment phosphorus release increased, showing that feedbacks between phosphorus release and oxygen depletion can be hard to break.
This article is included in the Encyclopedia of Geosciences
Martijn Hermans, Nils Risgaard-Petersen, Filip J. R. Meysman, and Caroline P. Slomp
Biogeosciences, 17, 5919–5938, https://doi.org/10.5194/bg-17-5919-2020, https://doi.org/10.5194/bg-17-5919-2020, 2020
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This paper demonstrates that the recently discovered cable bacteria are capable of using a mineral, known as siderite, as a source for the formation of iron oxides. This work also demonstrates that the activity of cable bacteria can lead to a distinct subsurface layer in the sediment that can be used as a marker for their activity.
This article is included in the Encyclopedia of Geosciences
Julien Richirt, Bettina Riedel, Aurélia Mouret, Magali Schweizer, Dewi Langlet, Dorina Seitaj, Filip J. R. Meysman, Caroline P. Slomp, and Frans J. Jorissen
Biogeosciences, 17, 1415–1435, https://doi.org/10.5194/bg-17-1415-2020, https://doi.org/10.5194/bg-17-1415-2020, 2020
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The paper presents the response of benthic foraminiferal communities to seasonal absence of oxygen coupled with the presence of hydrogen sulfide, considered very harmful for several living organisms.
Our results suggest that the foraminiferal community mainly responds as a function of the duration of the adverse conditions.
This knowledge is especially useful to better understand the ecology of benthic foraminifera but also in the context of palaeoceanographic interpretations.
This article is included in the Encyclopedia of Geosciences
Nicole M. J. Geerlings, Eva-Maria Zetsche, Silvia Hidalgo-Martinez, Jack J. Middelburg, and Filip J. R. Meysman
Biogeosciences, 16, 811–829, https://doi.org/10.5194/bg-16-811-2019, https://doi.org/10.5194/bg-16-811-2019, 2019
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Multicellular cable bacteria form long filaments that can reach lengths of several centimeters. They affect the chemistry and mineralogy of their surroundings and vice versa. How the surroundings affect the cable bacteria is investigated. They show three different types of biomineral formation: (1) a polymer containing phosphorus in their cells, (2) a sheath of clay surrounding the surface of the filament and (3) the encrustation of a filament via a solid phase containing iron and phosphorus.
This article is included in the Encyclopedia of Geosciences
Related subject area
Earth System Science/Response to Global Change: Climate Change
Disentangling future effects of climate change and forest disturbance on vegetation composition and land surface properties of the boreal forest
Simulating vertical phytoplankton dynamics in a stratified ocean using a two-layered ecosystem model
Assessing the lifetime of anthropogenic CO2 and its sensitivity to different carbon cycle processes
Foliar nutrient uptake from dust sustains plant nutrition
This article is included in the Encyclopedia of Geosciences
The effectiveness of agricultural carbon dioxide removal using the University of Victoria Earth System Climate Model
Consistency of global carbon budget between concentration- and emission-driven historical experiments simulated by CMIP6 Earth system models and suggestions for improved simulation of CO2 concentration
Selecting allometric equations to estimate forest biomass from plot- rather than individual-level predictive performance
Tree Growth and Water-Use Efficiency at the Himalayan Fir Treeline and lower altitudes: Roles of Climate Warming and CO2 Fertilization
Impact of winter warming on CO2 fluxes in evergreen needleleaf forests
Effects of pH/pCO2 fluctuations on photosynthesis and fatty acid composition of two marine diatoms, with reference to consequences of coastal acidification
Long-term impacts of global temperature stabilization and overshoot on exploited marine species
Modelling ozone-induced changes in wheat amino acids and protein quality using a process-based crop model
Toward more robust net primary production projections in the North Atlantic Ocean
Reviews and syntheses: Potential and limitations of oceanic carbon dioxide storage via reactor-based accelerated weathering of limestone
Assessment framework to predict sensitivity of marine calcifiers to ocean alkalinity enhancement – identification of biological thresholds and importance of precautionary principle
Southern Hemisphere tree-rings as proxies to reconstruct Southern Ocean upwelling
Particle fluxes by subtropical pelagic communities under ocean alkalinity enhancement
Responses of field-grown maize to different soil types, water regimes, and contrasting vapor pressure deficit
Effect of the 2022 summer drought across forest types in Europe
Ozone pollution may limit the benefits of irrigation to wheat productivity in India
Effect of terrestrial nutrient limitation on the estimation of the remaining carbon budget
Projected changes in forest fire season, the number of fires, and burnt area in Fennoscandia by 2100
New ozone–nitrogen model shows early senescence onset is the primary cause of ozone-induced reduction in grain quality of wheat
Ocean alkalinity enhancement approaches and the predictability of runaway precipitation processes: results of an experimental study to determine critical alkalinity ranges for safe and sustainable application scenarios
Variations of polyphenols and carbohydrates of Emiliania huxleyi grown under simulated ocean acidification conditions
Global and regional hydrological impacts of global forest expansion
Snow thermal conductivity controls future winter carbon emissions in shrub-tundra
Sensitivity of tropical woodland savannas to El Niño droughts
The biological and preformed carbon pumps in perpetually slower and warmer oceans
The Southern Ocean as the climate's freight train – driving ongoing global warming under zero-emission scenarios with ACCESS-ESM1.5
Mapping the future afforestation distribution of China constrained by a national afforestation plan and climate change
Southern Ocean phytoplankton under climate change: a shifting balance of bottom-up and top-down control
Coherency and time lag analyses between MODIS vegetation indices and climate across forests and grasslands in the European temperate zone
Direct foliar phosphorus uptake from wildfire ash
The effect of forest cover changes on the regional climate conditions in Europe during the period 1986–2015
Carbon cycle feedbacks in an idealized simulation and a scenario simulation of negative emissions in CMIP6 Earth system models
Spatiotemporal heterogeneity in the increase in ocean acidity extremes in the northeastern Pacific
Anthropogenic climate change drives non-stationary phytoplankton internal variability
The response of wildfire regimes to Last Glacial Maximum carbon dioxide and climate
Simulated responses of soil carbon to climate change in CMIP6 Earth system models: the role of false priming
Alkalinity biases in CMIP6 Earth system models and implications for simulated CO2 drawdown via artificial alkalinity enhancement
Experiments of the efficacy of tree ring blue intensity as a climate proxy in central and western China
Burned area and carbon emissions across northwestern boreal North America from 2001–2019
Quantifying land carbon cycle feedbacks under negative CO2 emissions
The potential of an increased deciduous forest fraction to mitigate the effects of heat extremes in Europe
Ideas and perspectives: Alleviation of functional limitations by soil organisms is key to climate feedbacks from arctic soils
A comparison of the climate and carbon cycle effects of carbon removal by afforestation and an equivalent reduction in fossil fuel emissions
Stability of alkalinity in ocean alkalinity enhancement (OAE) approaches – consequences for durability of CO2 storage
Ideas and perspectives: Land–ocean connectivity through groundwater
Bioclimatic change as a function of global warming from CMIP6 climate projections
Lucia S. Layritz, Konstantin Gregor, Andreas Krause, Stefan Kruse, Benjamin F. Meyer, Thomas A. M. Pugh, and Anja Rammig
Biogeosciences, 22, 3635–3660, https://doi.org/10.5194/bg-22-3635-2025, https://doi.org/10.5194/bg-22-3635-2025, 2025
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Disturbances, such as fire, can change which vegetation grows in a forest, affecting water and carbon flows and, thus, the climate. Disturbances are expected to increase with climate change, but it is uncertain by how much. Using a simulation model, we studied how future climate, disturbances, and their combined effect impact northern (high-latitude) forest ecosystems. Our findings highlight the importance of considering these factors and the need to better understand how disturbances will change in the future.
This article is included in the Encyclopedia of Geosciences
Qi Zheng, Johannes J. Viljoen, Xuerong Sun, Žarko Kovač, Shubha Sathyendranath, and Robert J. W. Brewin
Biogeosciences, 22, 3253–3278, https://doi.org/10.5194/bg-22-3253-2025, https://doi.org/10.5194/bg-22-3253-2025, 2025
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Phytoplankton contribute to half of Earth’s primary production, but not a lot is known about subsurface phytoplankton, living at the base of the sunlit ocean. We develop a two-layered box model to simulate phytoplankton seasonal and interannual variations in different depth layers of the ocean. Our model captures seasonal and long-term trends of the two layers, explaining how they respond to a warming ocean, furthering our understanding of how phytoplankton are responding to climate change.
This article is included in the Encyclopedia of Geosciences
Christine Kaufhold, Matteo Willeit, Bo Liu, and Andrey Ganopolski
Biogeosciences, 22, 2767–2801, https://doi.org/10.5194/bg-22-2767-2025, https://doi.org/10.5194/bg-22-2767-2025, 2025
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This study simulates long-term future climate scenarios to assess the persistence of CO2 emissions in the atmosphere. Results show that the land stores 4 %–13 % of emissions after 100 kyr and that the removal timescale of CO2 for silicate weathering is shorter than previously expected. Our study highlights the importance of adding model complexity to the global carbon cycle in Earth system models for improved predictions of long-term atmospheric CO2 concentration.
This article is included in the Encyclopedia of Geosciences
Anton Lokshin, Daniel Palchan, Elnatan Golan, Ran Erel, Daniele Andronico, and Avner Gross
Biogeosciences, 22, 2653–2666, https://doi.org/10.5194/bg-22-2653-2025, https://doi.org/10.5194/bg-22-2653-2025, 2025
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Our research explores how chickpea plants can absorb essential nutrients like phosphorus, iron, and nickel directly from dust deposited on their leaves in addition to uptake through their roots. This process is particularly effective under higher levels of atmospheric CO2, leading to increased plant growth. By using Nd isotopic tools, we traced the nutrients from dust and found that certain leaf traits enhance this uptake. This discovery may become increasingly important as CO2 levels rise.
Rebecca Chloe Evans and H. Damon Matthews
Biogeosciences, 22, 1969–1984, https://doi.org/10.5194/bg-22-1969-2025, https://doi.org/10.5194/bg-22-1969-2025, 2025
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To mitigate our impact on the climate, we must both drastically reduce emissions and perform carbon dioxide removal (CDR). We simulated agriculture as a form of CDR under three future climate scenarios to find out how the climate responds to CDR when the carbon is not permanently stored. We found that agricultural CDR is much more effective at reducing global temperatures if done in a low-emissions scenario and at a high rate, and it becomes less effective as removal continues.
This article is included in the Encyclopedia of Geosciences
Tomohiro Hajima, Michio Kawamiya, Akihiko Ito, Kaoru Tachiiri, Chris D. Jones, Vivek Arora, Victor Brovkin, Roland Séférian, Spencer Liddicoat, Pierre Friedlingstein, and Elena Shevliakova
Biogeosciences, 22, 1447–1473, https://doi.org/10.5194/bg-22-1447-2025, https://doi.org/10.5194/bg-22-1447-2025, 2025
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This study analyzes atmospheric CO2 concentrations and global carbon budgets simulated by multiple Earth system models, using several types of simulations (CO2 concentration- and emission-driven experiments). We successfully identified problems with regard to the global carbon budget in each model. We also found urgent issues with regard to land use change CO2 emissions that should be solved in the latest generation of models.
This article is included in the Encyclopedia of Geosciences
Nicolas Picard, Noël Fonton, Faustin Boyemba Bosela, Adeline Fayolle, Joël Loumeto, Gabriel Ngua Ayecaba, Bonaventure Sonké, Olga Diane Yongo Bombo, Hervé Martial Maïdou, and Alfred Ngomanda
Biogeosciences, 22, 1413–1426, https://doi.org/10.5194/bg-22-1413-2025, https://doi.org/10.5194/bg-22-1413-2025, 2025
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Allometric equations predict tree biomass and are crucial for estimating forest carbon storage, thus assessing the role of forests in climate change mitigation. Usually, these equations are selected based on tree-level predictive performance. However, we evaluated the model performance at plot and forest levels, finding it varies with plot size. This has significant implications for reducing uncertainty in biomass estimates at these levels.
This article is included in the Encyclopedia of Geosciences
Xing Pu and Lixin Lyu
EGUsphere, https://doi.org/10.5194/egusphere-2025-952, https://doi.org/10.5194/egusphere-2025-952, 2025
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This study explores how rising CO₂ and increasing temperatures affect the growth of Himalayan fir trees on the Tibetan Plateau, particularly in relation to water availability. We found that while tree growth in wet, high-elevation areas improved with increased CO₂, growth in dry, low-elevation areas declined due to water stress. These findings suggest that while CO₂ may boost growth in some areas, the negative effects of drought may outweigh these benefits.
This article is included in the Encyclopedia of Geosciences
Mana Gharun, Ankit Shekhar, Lukas Hörtnagl, Luana Krebs, Nicola Arriga, Mirco Migliavacca, Marilyn Roland, Bert Gielen, Leonardo Montagnani, Enrico Tomelleri, Ladislav Šigut, Matthias Peichl, Peng Zhao, Marius Schmidt, Thomas Grünwald, Mika Korkiakoski, Annalea Lohila, and Nina Buchmann
Biogeosciences, 22, 1393–1411, https://doi.org/10.5194/bg-22-1393-2025, https://doi.org/10.5194/bg-22-1393-2025, 2025
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The effect of winter warming on forest CO2 fluxes has rarely been investigated. We tested the effect of the warm winter of 2020 on the forest CO2 fluxes across 14 sites in Europe and found that the net ecosystem productivity (NEP) across most sites declined during the warm winter due to increased respiration fluxes.
This article is included in the Encyclopedia of Geosciences
Yu Shang, Jingmin Qiu, Yuxi Weng, Xin Wang, Di Zhang, Yuwei Zhou, Juntian Xu, and Futian Li
Biogeosciences, 22, 1203–1214, https://doi.org/10.5194/bg-22-1203-2025, https://doi.org/10.5194/bg-22-1203-2025, 2025
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Research on the influences of dynamic pH on the marine ecosystem is still in its infancy. We manipulated the culturing pH to simulate pH fluctuation and found lower pH could increase eicosapentaenoic acid and docosahexaenoic acid production with unaltered growth and photosynthesis in two marine diatoms. It is important to consider pH variation for more accurate predictions regarding the consequences of acidification in coastal waters.
This article is included in the Encyclopedia of Geosciences
Anne L. Morée, Fabrice Lacroix, William W. L. Cheung, and Thomas L. Frölicher
Biogeosciences, 22, 1115–1133, https://doi.org/10.5194/bg-22-1115-2025, https://doi.org/10.5194/bg-22-1115-2025, 2025
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Using novel Earth system model simulations and applying the Aerobic Growth Index, we show that only about half of the habitat loss for marine species is realized when temperature stabilization is initially reached. The maximum habitat loss happens over a century after peak warming in a temperature overshoot scenario peaking at 2 °C before stabilizing at 1.5 °C. We also emphasize that species adaptation may be key in mitigating the long-term impacts of temperature stabilization and overshoot.
This article is included in the Encyclopedia of Geosciences
Jo Cook, Durgesh Singh Yadav, Felicity Hayes, Nathan Booth, Sam Bland, Pritha Pande, Samarthia Thankappan, and Lisa Emberson
Biogeosciences, 22, 1035–1056, https://doi.org/10.5194/bg-22-1035-2025, https://doi.org/10.5194/bg-22-1035-2025, 2025
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Ozone (O3) pollution reduces wheat yields and quality in India, affecting amino acids essential for nutrition, like lysine and methionine. Here, we improve the DO3SE-CropN model to simulate wheat’s protective processes against O3 and their impact on protein and amino acid concentrations. While the model captures O3-induced yield losses, it underestimates amino acid reductions. Further research is needed to refine the model, enabling future risk assessments of O3's impact on yields and nutrition.
This article is included in the Encyclopedia of Geosciences
Stéphane Doléac, Marina Lévy, Roy El Hourany, and Laurent Bopp
Biogeosciences, 22, 841–862, https://doi.org/10.5194/bg-22-841-2025, https://doi.org/10.5194/bg-22-841-2025, 2025
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The marine biogeochemistry components of Coupled Model Intercomparison Project phase 6 (CMIP6) models vary widely in their process representations. Using an innovative bioregionalization of the North Atlantic, we reveal that this model diversity largely drives the divergence in net primary production projections under a high-emission scenario. The identification of the most mechanistically realistic models allows for a substantial reduction in projection uncertainty.
This article is included in the Encyclopedia of Geosciences
Tom Huysmans, Filip J. R. Meysman, and Sebastiaan J. van de Velde
EGUsphere, https://doi.org/10.5194/egusphere-2025-447, https://doi.org/10.5194/egusphere-2025-447, 2025
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To examine the potential of "Accelerated Weathering of Limestone" as a carbon capture and storage technique, we compared the different available reactor designs, and assessed their CO2 sequestration efficiencies, resource usage and limitations. We find that large water volumes are required to efficiently remove CO2 from the gas stream and that very small CaCO3 particle sizes and long residence times are required to achieve reasonable CaCO3 dissolution efficiencies.
This article is included in the Encyclopedia of Geosciences
Nina Bednaršek, Hanna van de Mortel, Greg Pelletier, Marisol García-Reyes, Richard A. Feely, and Andrew G. Dickson
Biogeosciences, 22, 473–498, https://doi.org/10.5194/bg-22-473-2025, https://doi.org/10.5194/bg-22-473-2025, 2025
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The environmental impacts of ocean alkalinity enhancement (OAE) are unknown. Our synthesis, based on 68 collected studies with 84 unique species, shows that 35 % of species respond positively, 26 % respond negatively, and 39 % show a neutral response to alkalinity addition. Biological thresholds were found from 50 to 500 µmol kg−1 NaOH addition. A precautionary approach is warranted to avoid potential risks, while current regulatory framework needs improvements to assure safe biological limits.
This article is included in the Encyclopedia of Geosciences
Christian Blair Lewis, Rachel Corran, Sara Mikaloff-Fletcher, Erik Behrens, Rowena Moss, Gordon Brailsford, Andrew Lorrey, Margaret Norris, and Jocelyn Turnbull
EGUsphere, https://doi.org/10.5194/egusphere-2024-4107, https://doi.org/10.5194/egusphere-2024-4107, 2025
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The Southern Ocean carbon sink is a balance between two opposing forces: CO2 absorption at mid-latitudes and CO2 outgassing at high-latitudes. Radiocarbon analysis can be used to constrain the latter, as upwelling waters outgas old CO2, diluting atmospheric radiocarbon content. We present tree-ring radiocarbon measurements from New Zealand and Chile. We show that low radiocarbon in New Zealand’s Campbell Island is linked to outgassing in the critical Antarctic Southern Zone.
This article is included in the Encyclopedia of Geosciences
Philipp Suessle, Jan Taucher, Silvan Urs Goldenberg, Moritz Baumann, Kristian Spilling, Andrea Noche-Ferreira, Mari Vanharanta, and Ulf Riebesell
Biogeosciences, 22, 71–86, https://doi.org/10.5194/bg-22-71-2025, https://doi.org/10.5194/bg-22-71-2025, 2025
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Ocean alkalinity enhancement (OAE) is a negative emission technology which may alter marine communities and the particle export they drive. Here, impacts of carbonate-based OAE on the flux and attenuation of sinking particles in an oligotrophic plankton community are presented. Whilst biological parameters remained unaffected, abiotic carbonate precipitation occurred. Among counteracting OAE’s efficiency, it influenced mineral ballasting and particle sinking velocities, requiring monitoring.
This article is included in the Encyclopedia of Geosciences
Thuy Huu Nguyen, Thomas Gaiser, Jan Vanderborght, Andrea Schnepf, Felix Bauer, Anja Klotzsche, Lena Lärm, Hubert Hüging, and Frank Ewert
Biogeosciences, 21, 5495–5515, https://doi.org/10.5194/bg-21-5495-2024, https://doi.org/10.5194/bg-21-5495-2024, 2024
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Leaf water potential was at certain thresholds, depending on soil type, water treatment, and weather conditions. In rainfed plots, the lower water availability in the stony soil resulted in fewer roots with a higher root tissue conductance than the silty soil. In the silty soil, higher stress in the rainfed soil led to more roots with a lower root tissue conductance than in the irrigated plot. Crop responses to water stress can be opposite, depending on soil water conditions that are compared.
This article is included in the Encyclopedia of Geosciences
Mana Gharun, Ankit Shekhar, Jingfeng Xiao, Xing Li, and Nina Buchmann
Biogeosciences, 21, 5481–5494, https://doi.org/10.5194/bg-21-5481-2024, https://doi.org/10.5194/bg-21-5481-2024, 2024
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In 2022, Europe's forests faced unprecedented dry conditions. Our study aimed to understand how different forest types respond to extreme drought. Using meteorological data and satellite imagery, we compared 2022 with two previous extreme years, 2003 and 2018. Despite less severe drought in 2022, forests showed a 30 % greater decline in photosynthesis compared to 2018 and 60 % more than 2003. This suggests an alarming level of vulnerability of forests across Europe to more frequent droughts.
This article is included in the Encyclopedia of Geosciences
Gabriella Everett, Øivind Hodnebrog, Madhoolika Agrawal, Durgesh Singh Yadav, Connie O'Neill, Chubamenla Jamir, Jo Cook, Pritha Pande, and Lisa Emberson
EGUsphere, https://doi.org/10.5194/egusphere-2024-3371, https://doi.org/10.5194/egusphere-2024-3371, 2024
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Ground-level ozone (O3), heat, and water stress (WS) reduce wheat yields, threatening food security in India. O3, heat, and WS interact as stressed plants close stomata, limiting O3 entry and damage. This study models O3 uptake under rainfed (WS) and irrigated conditions for current and future climates. Results show little O3-related yield loss under wWS but higher losses with irrigation. Both climate scenarios increase O3-related losses, highlighting risks to India’s wheat productivity.
This article is included in the Encyclopedia of Geosciences
Makcim L. De Sisto and Andrew H. MacDougall
Biogeosciences, 21, 4853–4873, https://doi.org/10.5194/bg-21-4853-2024, https://doi.org/10.5194/bg-21-4853-2024, 2024
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The remaining carbon budget (RCB) represents the allowable future CO2 emissions before a temperature target is reached. Understanding the uncertainty in the RCB is critical for effective climate regulation and policy-making. One major source of uncertainty is the representation of the carbon cycle in Earth system models. We assessed how nutrient limitation affects the estimation of the RCB. We found a reduction in the estimated RCB when nutrient limitation is taken into account.
This article is included in the Encyclopedia of Geosciences
Outi Kinnunen, Leif Backman, Juha Aalto, Tuula Aalto, and Tiina Markkanen
Biogeosciences, 21, 4739–4763, https://doi.org/10.5194/bg-21-4739-2024, https://doi.org/10.5194/bg-21-4739-2024, 2024
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Climate change is expected to increase the risk of forest fires. Ecosystem process model simulations are used to project changes in fire occurrence in Fennoscandia under six climate projections. The findings suggest a longer fire season, more fires, and an increase in burnt area towards the end of the century.
This article is included in the Encyclopedia of Geosciences
Jo Cook, Clare Brewster, Felicity Hayes, Nathan Booth, Sam Bland, Pritha Pande, Samarthia Thankappan, Håkan Pleijel, and Lisa Emberson
Biogeosciences, 21, 4809–4835, https://doi.org/10.5194/bg-21-4809-2024, https://doi.org/10.5194/bg-21-4809-2024, 2024
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At ground level, the air pollutant ozone (O3) damages wheat yield and quality. We modified the DO3SE-Crop model to simulate O3 effects on wheat quality and identified onset of leaf death as the key process affecting wheat quality upon O3 exposure. This aligns with expectations, as the onset of leaf death aids nutrient transfer from leaves to grains. Breeders should prioritize wheat varieties resistant to protein loss from delayed leaf death, to maintain yield and quality under O3 exposure.
This article is included in the Encyclopedia of Geosciences
Niels Suitner, Giulia Faucher, Carl Lim, Julieta Schneider, Charly A. Moras, Ulf Riebesell, and Jens Hartmann
Biogeosciences, 21, 4587–4604, https://doi.org/10.5194/bg-21-4587-2024, https://doi.org/10.5194/bg-21-4587-2024, 2024
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Recent studies described the precipitation of carbonates as a result of alkalinity enhancement in seawater, which could adversely affect the carbon sequestration potential of ocean alkalinity enhancement (OAE) approaches. By conducting experiments in natural seawater, this study observed uniform patterns during the triggered runaway carbonate precipitation, which allow the prediction of safe and efficient local application levels of OAE scenarios.
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Milagros Rico, Paula Santiago-Díaz, Guillermo Samperio-Ramos, Melchor González-Dávila, and Juana Magdalena Santana-Casiano
Biogeosciences, 21, 4381–4394, https://doi.org/10.5194/bg-21-4381-2024, https://doi.org/10.5194/bg-21-4381-2024, 2024
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Changes in pH generate stress conditions, either because high pH drastically decreases the availability of trace metals such as Fe(II), a restrictive element for primary productivity, or because reactive oxygen species are increased with low pH. The metabolic functions and composition of microalgae can be affected. These modifications in metabolites are potential factors leading to readjustments in phytoplankton community structure and diversity and possible alteration in marine ecosystems.
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James A. King, James Weber, Peter Lawrence, Stephanie Roe, Abigail L. S. Swann, and Maria Val Martin
Biogeosciences, 21, 3883–3902, https://doi.org/10.5194/bg-21-3883-2024, https://doi.org/10.5194/bg-21-3883-2024, 2024
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Tackling climate change by adding, restoring, or enhancing forests is gaining global support. However, it is important to investigate the broader implications of this. We used a computer model of the Earth to investigate a future where tree cover expanded as much as possible. We found that some tropical areas were cooler because of trees pumping water into the atmosphere, but this also led to soil and rivers drying. This is important because it might be harder to maintain forests as a result.
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Johnny Rutherford, Nick Rutter, Leanne Wake, and Alex Cannon
EGUsphere, https://doi.org/10.5194/egusphere-2024-2445, https://doi.org/10.5194/egusphere-2024-2445, 2024
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The Arctic winter is vulnerable to climate warming and ~1700 Gt of carbon stored in high latitude permafrost ecosystems is at risk of degradation in the future due to enhanced microbial activity. Poorly represented cold season processes, such as the simulation of snow thermal conductivity in Land Surface Models (LSMs), causes uncertainty in projected carbon emission simulations. Improved snow conductivity parameterization in CLM5.0 significantly increases predicted winter CO2 emissions to 2100.
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Simone Matias Reis, Yadvinder Malhi, Ben Hur Marimon Junior, Beatriz S. Marimon, Huanyuan Zhang-Zheng, Renata Freitag, Cécile A. J. Girardin, Edmar Almeida de Oliveira, Karine da Silva Peixoto, Luciana Januário de Souza, Ediméia Laura Souza da Silva, Eduarda Bernardes Santos, Kamila Parreira da Silva, Maélly Dállet Alves Gonçalves, Cecilia A. L. Dahlsjö, Oliver L. Phillips, and Imma Oliveras Menor
EGUsphere, https://doi.org/10.5194/egusphere-2024-2118, https://doi.org/10.5194/egusphere-2024-2118, 2024
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The 2015–2016 El Niño caused severe droughts in tropical forests, but its impact on the Cerrado, largest savanna, was unclear. Our study tracked the productivity of two key Cerrado vegetation types over five years. Before El Niño, productivity was higher in the transitional forest-savanna, but it dropped sharply during the event. Meanwhile, the savanna showed minor changes. These findings suggest that transitional ecosystems are particularly vulnerable to drought and climate change.
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Benoît Pasquier, Mark Holzer, and Matthew A. Chamberlain
Biogeosciences, 21, 3373–3400, https://doi.org/10.5194/bg-21-3373-2024, https://doi.org/10.5194/bg-21-3373-2024, 2024
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How do perpetually slower and warmer oceans sequester carbon? Compared to the preindustrial state, we find that biological productivity declines despite warming-stimulated growth because of a lower nutrient supply from depth. This throttles the biological carbon pump, which still sequesters more carbon because it takes longer to return to the surface. The deep ocean is isolated from the surface, allowing more carbon from the atmosphere to pass through the ocean without contributing to biology.
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Matthew A. Chamberlain, Tilo Ziehn, and Rachel M. Law
Biogeosciences, 21, 3053–3073, https://doi.org/10.5194/bg-21-3053-2024, https://doi.org/10.5194/bg-21-3053-2024, 2024
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This paper explores the climate processes that drive increasing global average temperatures in zero-emission commitment (ZEC) simulations despite decreasing atmospheric CO2. ACCESS-ESM1.5 shows the Southern Ocean to continue to warm locally in all ZEC simulations. In ZEC simulations that start after the emission of more than 1000 Pg of carbon, the influence of the Southern Ocean increases the global temperature.
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Shuaifeng Song, Xuezhen Zhang, and Xiaodong Yan
Biogeosciences, 21, 2839–2858, https://doi.org/10.5194/bg-21-2839-2024, https://doi.org/10.5194/bg-21-2839-2024, 2024
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We mapped the distribution of future potential afforestation regions based on future high-resolution climate data and climate–vegetation models. After considering the national afforestation policy and climate change, we found that the future potential afforestation region was mainly located around and to the east of the Hu Line. This study provides a dataset for exploring the effects of future afforestation.
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Tianfei Xue, Jens Terhaar, A. E. Friederike Prowe, Thomas L. Frölicher, Andreas Oschlies, and Ivy Frenger
Biogeosciences, 21, 2473–2491, https://doi.org/10.5194/bg-21-2473-2024, https://doi.org/10.5194/bg-21-2473-2024, 2024
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Phytoplankton play a crucial role in marine ecosystems. However, climate change's impact on phytoplankton biomass remains uncertain, particularly in the Southern Ocean. In this region, phytoplankton biomass within the water column is likely to remain stable in response to climate change, as supported by models. This stability arises from a shallower mixed layer, favoring phytoplankton growth but also increasing zooplankton grazing due to phytoplankton concentration near the surface.
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Kinga Kulesza and Agata Hościło
Biogeosciences, 21, 2509–2527, https://doi.org/10.5194/bg-21-2509-2024, https://doi.org/10.5194/bg-21-2509-2024, 2024
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We present coherence and time lags in spectral response of three vegetation types in the European temperate zone to the influencing meteorological factors and teleconnection indices for the period 2002–2022. Vegetation condition in broadleaved forest, coniferous forest and pastures was measured with MODIS NDVI and EVI, and the coherence between NDVI and EVI and meteorological elements was described using the methods of wavelet coherence and Pearson’s linear correlation with time lag.
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Anton Lokshin, Daniel Palchan, and Avner Gross
Biogeosciences, 21, 2355–2365, https://doi.org/10.5194/bg-21-2355-2024, https://doi.org/10.5194/bg-21-2355-2024, 2024
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Ash particles from wildfires are rich in phosphorus (P), a crucial nutrient that constitutes a limiting factor in 43 % of the world's land ecosystems. We hypothesize that wildfire ash could directly contribute to plant nutrition. We find that fire ash application boosts the growth of plants, but the only way plants can uptake P from fire ash is through the foliar uptake pathway and not through the roots. The fertilization impact of fire ash was also maintained under elevated levels of CO2.
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Marcus Breil, Vanessa K. M. Schneider, and Joaquim G. Pinto
Biogeosciences, 21, 811–824, https://doi.org/10.5194/bg-21-811-2024, https://doi.org/10.5194/bg-21-811-2024, 2024
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The general impact of afforestation on the regional climate conditions in Europe during the period 1986–2015 is investigated. For this purpose, a regional climate model simulation is performed, in which afforestation during this period is considered, and results are compared to a simulation in which this is not the case. Results show that afforestation had discernible impacts on the climate change signal in Europe, which may have mitigated the local warming trend, especially in summer in Europe.
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Ali Asaadi, Jörg Schwinger, Hanna Lee, Jerry Tjiputra, Vivek Arora, Roland Séférian, Spencer Liddicoat, Tomohiro Hajima, Yeray Santana-Falcón, and Chris D. Jones
Biogeosciences, 21, 411–435, https://doi.org/10.5194/bg-21-411-2024, https://doi.org/10.5194/bg-21-411-2024, 2024
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Carbon cycle feedback metrics are employed to assess phases of positive and negative CO2 emissions. When emissions become negative, we find that the model disagreement in feedback metrics increases more strongly than expected from the assumption that the uncertainties accumulate linearly with time. The geographical patterns of such metrics over land highlight that differences in response between tropical/subtropical and temperate/boreal ecosystems are a major source of model disagreement.
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Flora Desmet, Matthias Münnich, and Nicolas Gruber
Biogeosciences, 20, 5151–5175, https://doi.org/10.5194/bg-20-5151-2023, https://doi.org/10.5194/bg-20-5151-2023, 2023
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Ocean acidity extremes in the upper 250 m depth of the northeastern Pacific rapidly increase with atmospheric CO2 rise, which is worrisome for marine organisms that rapidly experience pH levels outside their local environmental conditions. Presented research shows the spatiotemporal heterogeneity in this increase between regions and depths. In particular, the subsurface increase is substantially slowed down by the presence of mesoscale eddies, often not resolved in Earth system models.
This article is included in the Encyclopedia of Geosciences
Geneviève W. Elsworth, Nicole S. Lovenduski, Kristen M. Krumhardt, Thomas M. Marchitto, and Sarah Schlunegger
Biogeosciences, 20, 4477–4490, https://doi.org/10.5194/bg-20-4477-2023, https://doi.org/10.5194/bg-20-4477-2023, 2023
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Anthropogenic climate change will influence marine phytoplankton over the coming century. Here, we quantify the influence of anthropogenic climate change on marine phytoplankton internal variability using an Earth system model ensemble and identify a decline in global phytoplankton biomass variance with warming. Our results suggest that climate mitigation efforts that account for marine phytoplankton changes should also consider changes in phytoplankton variance driven by anthropogenic warming.
This article is included in the Encyclopedia of Geosciences
Olivia Haas, Iain Colin Prentice, and Sandy P. Harrison
Biogeosciences, 20, 3981–3995, https://doi.org/10.5194/bg-20-3981-2023, https://doi.org/10.5194/bg-20-3981-2023, 2023
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We quantify the impact of CO2 and climate on global patterns of burnt area, fire size, and intensity under Last Glacial Maximum (LGM) conditions using three climate scenarios. Climate change alone did not produce the observed LGM reduction in burnt area, but low CO2 did through reducing vegetation productivity. Fire intensity was sensitive to CO2 but strongly affected by changes in atmospheric dryness. Low CO2 caused smaller fires; climate had the opposite effect except in the driest scenario.
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Rebecca M. Varney, Sarah E. Chadburn, Eleanor J. Burke, Simon Jones, Andy J. Wiltshire, and Peter M. Cox
Biogeosciences, 20, 3767–3790, https://doi.org/10.5194/bg-20-3767-2023, https://doi.org/10.5194/bg-20-3767-2023, 2023
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This study evaluates soil carbon projections during the 21st century in CMIP6 Earth system models. In general, we find a reduced spread of changes in global soil carbon in CMIP6 compared to the previous CMIP5 generation. The reduced CMIP6 spread arises from an emergent relationship between soil carbon changes due to change in plant productivity and soil carbon changes due to changes in turnover time. We show that this relationship is consistent with false priming under transient climate change.
This article is included in the Encyclopedia of Geosciences
Claudia Hinrichs, Peter Köhler, Christoph Völker, and Judith Hauck
Biogeosciences, 20, 3717–3735, https://doi.org/10.5194/bg-20-3717-2023, https://doi.org/10.5194/bg-20-3717-2023, 2023
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This study evaluated the alkalinity distribution in 14 climate models and found that most models underestimate alkalinity at the surface and overestimate it in the deeper ocean. It highlights the need for better understanding and quantification of processes driving alkalinity distribution and calcium carbonate dissolution and the importance of accounting for biases in model results when evaluating potential ocean alkalinity enhancement experiments.
This article is included in the Encyclopedia of Geosciences
Yonghong Zheng, Huanfeng Shen, Rory Abernethy, and Rob Wilson
Biogeosciences, 20, 3481–3490, https://doi.org/10.5194/bg-20-3481-2023, https://doi.org/10.5194/bg-20-3481-2023, 2023
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Investigations in central and western China show that tree ring inverted latewood intensity expresses a strong positive relationship with growing-season temperatures, indicating exciting potential for regions south of 30° N that are traditionally not targeted for temperature reconstructions. Earlywood BI also shows good potential to reconstruct hydroclimate parameters in some humid areas and will enhance ring-width-based hydroclimate reconstructions in the future.
This article is included in the Encyclopedia of Geosciences
Stefano Potter, Sol Cooperdock, Sander Veraverbeke, Xanthe Walker, Michelle C. Mack, Scott J. Goetz, Jennifer Baltzer, Laura Bourgeau-Chavez, Arden Burrell, Catherine Dieleman, Nancy French, Stijn Hantson, Elizabeth E. Hoy, Liza Jenkins, Jill F. Johnstone, Evan S. Kane, Susan M. Natali, James T. Randerson, Merritt R. Turetsky, Ellen Whitman, Elizabeth Wiggins, and Brendan M. Rogers
Biogeosciences, 20, 2785–2804, https://doi.org/10.5194/bg-20-2785-2023, https://doi.org/10.5194/bg-20-2785-2023, 2023
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Here we developed a new burned-area detection algorithm between 2001–2019 across Alaska and Canada at 500 m resolution. We estimate 2.37 Mha burned annually between 2001–2019 over the domain, emitting 79.3 Tg C per year, with a mean combustion rate of 3.13 kg C m−2. We found larger-fire years were generally associated with greater mean combustion. The burned-area and combustion datasets described here can be used for local- to continental-scale applications of boreal fire science.
This article is included in the Encyclopedia of Geosciences
V. Rachel Chimuka, Claude-Michel Nzotungicimpaye, and Kirsten Zickfeld
Biogeosciences, 20, 2283–2299, https://doi.org/10.5194/bg-20-2283-2023, https://doi.org/10.5194/bg-20-2283-2023, 2023
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We propose a new method to quantify carbon cycle feedbacks under negative CO2 emissions. Our method isolates the lagged carbon cycle response to preceding positive emissions from the response to negative emissions. Our findings suggest that feedback parameters calculated with the novel approach are larger than those calculated with the conventional approach whereby carbon cycle inertia is not corrected for, with implications for the effectiveness of carbon dioxide removal in reducing CO2 levels.
This article is included in the Encyclopedia of Geosciences
Marcus Breil, Annabell Weber, and Joaquim G. Pinto
Biogeosciences, 20, 2237–2250, https://doi.org/10.5194/bg-20-2237-2023, https://doi.org/10.5194/bg-20-2237-2023, 2023
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A promising strategy for mitigating burdens of heat extremes in Europe is to replace dark coniferous forests with brighter deciduous forests. The consequence of this would be reduced absorption of solar radiation, which should reduce the intensities of heat periods. In this study, we show that deciduous forests have a certain cooling effect on heat period intensities in Europe. However, the magnitude of the temperature reduction is quite small.
This article is included in the Encyclopedia of Geosciences
Gesche Blume-Werry, Jonatan Klaminder, Eveline J. Krab, and Sylvain Monteux
Biogeosciences, 20, 1979–1990, https://doi.org/10.5194/bg-20-1979-2023, https://doi.org/10.5194/bg-20-1979-2023, 2023
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Northern soils store a lot of carbon. Most research has focused on how this carbon storage is regulated by cold temperatures. However, it is soil organisms, from minute bacteria to large earthworms, that decompose the organic material. Novel soil organisms from further south could increase decomposition rates more than climate change does and lead to carbon losses. We therefore advocate for including soil organisms when predicting the fate of soil functions in warming northern ecosystems.
This article is included in the Encyclopedia of Geosciences
Koramanghat Unnikrishnan Jayakrishnan and Govindasamy Bala
Biogeosciences, 20, 1863–1877, https://doi.org/10.5194/bg-20-1863-2023, https://doi.org/10.5194/bg-20-1863-2023, 2023
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Afforestation and reducing fossil fuel emissions are two important mitigation strategies to reduce the amount of global warming. Our work shows that reducing fossil fuel emissions is relatively more effective than afforestation for the same amount of carbon removed from the atmosphere. However, understanding of the processes that govern the biophysical effects of afforestation should be improved before considering our results for climate policy.
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Jens Hartmann, Niels Suitner, Carl Lim, Julieta Schneider, Laura Marín-Samper, Javier Arístegui, Phil Renforth, Jan Taucher, and Ulf Riebesell
Biogeosciences, 20, 781–802, https://doi.org/10.5194/bg-20-781-2023, https://doi.org/10.5194/bg-20-781-2023, 2023
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CO2 can be stored in the ocean via increasing alkalinity of ocean water. Alkalinity can be created via dissolution of alkaline materials, like limestone or soda. Presented research studies boundaries for increasing alkalinity in seawater. The best way to increase alkalinity was found using an equilibrated solution, for example as produced from reactors. Adding particles for dissolution into seawater on the other hand produces the risk of losing alkalinity and degassing of CO2 to the atmosphere.
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Damian L. Arévalo-Martínez, Amir Haroon, Hermann W. Bange, Ercan Erkul, Marion Jegen, Nils Moosdorf, Jens Schneider von Deimling, Christian Berndt, Michael Ernst Böttcher, Jasper Hoffmann, Volker Liebetrau, Ulf Mallast, Gudrun Massmann, Aaron Micallef, Holly A. Michael, Hendrik Paasche, Wolfgang Rabbel, Isaac Santos, Jan Scholten, Katrin Schwalenberg, Beata Szymczycha, Ariel T. Thomas, Joonas J. Virtasalo, Hannelore Waska, and Bradley A. Weymer
Biogeosciences, 20, 647–662, https://doi.org/10.5194/bg-20-647-2023, https://doi.org/10.5194/bg-20-647-2023, 2023
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Groundwater flows at the land–ocean transition and the extent of freshened groundwater below the seafloor are increasingly relevant in marine sciences, both because they are a highly uncertain term of biogeochemical budgets and due to the emerging interest in the latter as a resource. Here, we discuss our perspectives on future research directions to better understand land–ocean connectivity through groundwater and its potential responses to natural and human-induced environmental changes.
This article is included in the Encyclopedia of Geosciences
Morgan Sparey, Peter Cox, and Mark S. Williamson
Biogeosciences, 20, 451–488, https://doi.org/10.5194/bg-20-451-2023, https://doi.org/10.5194/bg-20-451-2023, 2023
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Accurate climate models are vital for mitigating climate change; however, projections often disagree. Using Köppen–Geiger bioclimate classifications we show that CMIP6 climate models agree well on the fraction of global land surface that will change classification per degree of global warming. We find that 13 % of land will change climate per degree of warming from 1 to 3 K; thus, stabilising warming at 1.5 rather than 2 K would save over 7.5 million square kilometres from bioclimatic change.
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Cited articles
Ackerman, L., Jelínek, E., Medaris, G., Ježek, J., Siebel, W., and Strnad, L.: Geochemistry of Fe-rich peridotites and associated pyroxenites from Horní Bory, Bohemian Massif: Insights into subduction-related melt–rock reactions, Chem. Geol., 259, 152–167, https://doi.org/10.1016/j.chemgeo.2008.10.042, 2009.
Aller, R. C.: 8.11 – Sedimentary Diagenesis, Depositional Environments, and Benthic Fluxes, in: Treatise on Geochemistry (Second Edition), edited by: Holland, H. D. and Turekian, K. K., Elsevier, Oxford, 293–334, https://doi.org/10.1016/B978-0-08-095975-7.00611-2, 2014.
Alt, J. C., Shanks, W. C., Crispini, L., Gaggero, L., Schwarzenbach, E. M., Früh-Green, G. L., and Bernasconi, S. M.: Uptake of carbon and sulfur during seafloor serpentinization and the effects of subduction metamorphism in Ligurian peridotites, Chem. Geol., 322–323, 268–277, https://doi.org/10.1016/j.chemgeo.2012.07.009, 2012.
Alt, J. C., Schwarzenbach, E. M., Früh-Green, G. L., Shanks, W. C., Bernasconi, S. M., Garrido, C. J., Crispini, L., Gaggero, L., Padrón-Navarta, J. A., and Marchesi, C.: The role of serpentinites in cycling of carbon and sulfur: Seafloor serpentinization and subduction metamorphism, Lithos, 178, 40–54, https://doi.org/10.1016/j.lithos.2012.12.006, 2013.
Archer, D., Eby, M., Brovkin, V., Ridgwell, A., Cao, L., Mikolajewicz, U., Caldeira, K., Matsumoto, K., Munhoven, G., Montenegro, A., and Tokos, K.: Atmospheric Lifetime of Fossil Fuel Carbon Dioxide, Annu. Rev. Earth Pl. Sc., 37, 117–134, https://doi.org/10.1146/annurev.earth.031208.100206, 2009.
Bach, L. T.: The additionality problem of ocean alkalinity enhancement, Biogeosciences, 21, 261–277, https://doi.org/10.5194/bg-21-261-2024, 2024.
Bach, L. T., Gill, S. J., Rickaby, R. E. M., Gore, S., and Renforth, P.: CO2 Removal With Enhanced Weathering and Ocean Alkalinity Enhancement: Potential Risks and Co-benefits for Marine Pelagic Ecosystems, Front. Clim., 1, 7, https://doi.org/10.3389/fclim.2019.00007, 2019.
Bailey, A.: Proceedings of the International Symposium on Water-Rock Interaction, in: Effects of temperature on the reaction of silicates with aqueous solutions in the low temperature range, edited by: Cadek, J. and Paces, T., Geological Survey Prague, Prague, 375–380, 1976.
Baker, I. and Haggerty, S. E.: The alteration of olivine in basaltic and associated lavas, Contrib. Mineral. Petrol., 16, 258–273, https://doi.org/10.1007/BF00371095, 1967.
Baldermann, A., Mavromatis, V., Frick, P. M., and Dietzel, M.: Effect of aqueous Si/Mg ratio and pH on the nucleation and growth of sepiolite at 25 ° C, Geochim. Cosmochim. Ac., 227, 211–226, https://doi.org/10.1016/j.gca.2018.02.027, 2018.
Béarat, H., McKelvy, M. J., Chizmeshya, A. V. G., Gormley, D., Nunez, R., Carpenter, R. W., Squires, K., and Wolf, G. H.: Carbon Sequestration via Aqueous Olivine Mineral Carbonation: Role of Passivating Layer Formation, Environ. Sci. Technol., 40, 4802–4808, https://doi.org/10.1021/es0523340, 2006.
Beerling, D. J., Leake, J. R., Long, S. P., Scholes, J. D., Ton, J., Nelson, P. N., Bird, M., Kantzas, E., Taylor, L. L., Sarkar, B., Kelland, M., DeLucia, E., Kantola, I., Müller, C., Rau, G., and Hansen, J.: Farming with crops and rocks to address global climate, food and soil security, Nat. Plants, 4, 138–147, https://doi.org/10.1038/s41477-018-0108-y, 2018.
Berner, R. A.: Sedimentary pyrite formation: An update, Geochim. Cosmochim. Ac., 48, 605–615, https://doi.org/10.1016/0016-7037(84)90089-9, 1984.
Berner, R. A.: The Phanerozoic Carbon Cycle: CO2 and O2, 1st ed., Oxford University Press, USA, 2004.
Berner, R. A., Lasaga, A. C., and Garrels, R. M.: The carbonate-silicate geochemical cycle and its effect on atmospheric carbon dioxide over the past 100 million years, Am. J. Sci., 283, 641–683, https://doi.org/10.2475/ajs.283.7.641, 1983.
Bertagni, M. B. and Porporato, A.: The Carbon-Capture Efficiency of Natural Water Alkalinization: Implications For Enhanced weathering, Sci. Total Environ., 838, 156524, https://doi.org/10.1016/j.scitotenv.2022.156524, 2022.
Blum, A. and Lasaga, A.: Role of surface speciation in the low-temperature dissolution of minerals, Nature, 331, 431–433, https://doi.org/10.1038/331431a0, 1988.
Brantley, S. L. and Mellott, N. P.: Surface area and porosity of primary silicate minerals, Am. Mineral., 85, 1767–1783, https://doi.org/10.2138/am-2000-11-1220, 2000.
Brantley, S. L., Kubicki, J. D., and White, A. F. (Eds.): Kinetics of water-rock interaction, Springer Verlag, New York, 833 pp., ISBN 978-0-387-73562-7, 2008.
Brown, G. and Stephen, I.: A Structural study of iddingsite from New South Wales, Australia, Am. Mineral., 44, 251–260, 1959.
Brunauer, S., Emmett, P. H., and Teller, E.: Adsorption of Gases in Multimolecular Layers, J. Am. Chem. Soc., 60, 309–319, https://doi.org/10.1021/ja01269a023, 1938.
Bucher, K. and Grapes, R.: Metamorphism of Ultramafic Rocks, in: Petrogenesis of Metamorphic Rocks, edited by: Bucher, K. and Grapes, R., Springer, Berlin, Heidelberg, 191–224, https://doi.org/10.1007/978-3-540-74169-5_5, 2011.
Bullock, L. A., James, R. H., Matter, J., Renforth, P., and Teagle, D. A. H.: Global Carbon Dioxide Removal Potential of Waste Materials From Metal and Diamond Mining, Front. Clim., 3, 694175, https://doi.org/10.3389/fclim.2021.694175, 2021.
Cai, W.-J., Reimers, C. E., and Shaw, T.: Microelectrode studies of organic carbon degradation and calcite dissolution at a California Continental rise site, Geochim. Cosmochim. Ac., 59, 497–511, https://doi.org/10.1016/0016-7037(95)00316-R, 1995.
Campbell, J. S., Foteinis, S., Furey, V., Hawrot, O., Pike, D., Aeschlimann, S., Maesano, C. N., Reginato, P. L., Goodwin, D. R., Looger, L. L., Boyden, E. S., and Renforth, P.: Geochemical Negative Emissions Technologies: Part I. Review, Front. Clim., 4, 879133, https://doi.org/10.3389/fclim.2022.879133, 2022.
Caserini, S., Pagano, D., Campo, F., Abbà, A., De Marco, S., Righi, D., Renforth, P., and Grosso, M.: Potential of Maritime Transport for Ocean Liming and Atmospheric CO2 Removal, Front. Clim., 3, 22, https://doi.org/10.3389/fclim.2021.575900, 2021.
Caserini, S., Storni, N., and Grosso, M.: The Availability of Limestone and Other Raw Materials for Ocean Alkalinity Enhancement, Global Biogeochem. Cy., 36, e2021GB007246, https://doi.org/10.1029/2021GB007246, 2022.
Casey, W. H. and Sposito, G.: On the temperature dependence of mineral dissolution rates, Geochim. Cosmochim. Ac., 56, 3825–3830, https://doi.org/10.1016/0016-7037(92)90173-G, 1992.
Chemtob, S. M., Rossman, G. R., Young, E. D., Ziegler, K., Moynier, F., Eiler, J. M., and Hurowitz, J. A.: Silicon isotope systematics of acidic weathering of fresh basalts, Kilauea Volcano, Hawai'i, Geochim. Cosmochim. Ac., 169, 63–81, https://doi.org/10.1016/j.gca.2015.07.026, 2015.
Chen, Y. and Brantley, S. L.: Dissolution of forsteritic olivine at 65° C and 2, Chem. Geol., 165, 267–281, https://doi.org/10.1016/S0009-2541(99)00177-1, 2000.
Corner, A. and Pidgeon, N.: Like artificial trees? The effect of framing by natural analogy on public perceptions of geoengineering, Clim. Change, 130, 425–438, https://doi.org/10.1007/s10584-014-1148-6, 2015.
Cornwall, W.: Climate crisis sparks effort to coax oceans to suck up carbon dioxide | Science | AAAS, Science, 382, https://doi.org/10.1126/science.zn8487l, 988–992, 2023.
Crundwell, F. K.: The mechanism of dissolution of forsterite, olivine and minerals of the orthosilicate group, Hydrometallurgy, 150, 68–82, https://doi.org/10.1016/j.hydromet.2014.09.006, 2014.
Cyronak, T., Albright, R., and Bach, L. T.: Field experiments in ocean alkalinity enhancement research, in: Guide to Best Practices in Ocean Alkalinity Enhancement Research, edited by: Oschlies, A., Stevenson, A., Bach, L. T., Fennel, K., Rickaby, R. E. M., Satterfield, T., Webb, R., and Gattuso, J.-P., Copernicus Publications, State Planet, 2-oae2023, 7, https://doi.org/10.5194/sp-2-oae2023-7-2023, 2023.
Daewel, U. and Schrum, C.: Simulating long-term dynamics of the coupled North Sea and Baltic Sea ecosystem with ECOSMO II: Model description and validation, J. Mar. Syst., 119–120, 30–49, https://doi.org/10.1016/j.jmarsys.2013.03.008, 2013.
Daval, D., Sissmann, O., Menguy, N., Saldi, G. D., Guyot, F., Martinez, I., Corvisier, J., Garcia, B., Machouk, I., Knauss, K. G., and Hellmann, R.: Influence of amorphous silica layer formation on the dissolution rate of olivine at 90° C and elevated pCO2, Chem. Geol., 284, 193–209, https://doi.org/10.1016/j.chemgeo.2011.02.021, 2011.
Deer, W. A., Howie, R. A., and Zussman, J.: Olivine, in: An Introduction to the Rock-Forming Minerals, 4–11, The Mineralogical Society of Great Britain and Ireland, ISBN 978-0903056-33-5, 2013.
Dehouck, E., Gaudin, A., Chevrier, V., and Mangold, N.: Mineralogical record of the redox conditions on early Mars, Icarus, 271, 67–75, https://doi.org/10.1016/j.icarus.2016.01.030, 2016.
Delvigne, J., Bisdom, E. B. A., Sleeman, J., and Stoops, G.: Olivines, their pseudomorphs and secondary products, Journal Pedologie, 29, 247–309, 1979.
Dickson, A. G.: pH scales and proton-transfer reactions in saline media such as sea water, Geochim. Cosmochim. Ac., 48, 2299–2308, https://doi.org/10.1016/0016-7037(84)90225-4, 1984.
Edwards, A. B.: The Formation of Iddingsite, Am. Mineral., 23, 277–281, 1938.
Eggleton, R. A.: Formation of Iddingsite Rims on Olivine: A Transmission Electron Microscope Study, Clay. Clay Miner., 32, 1–11, https://doi.org/10.1346/CCMN.1984.0320101, 1984.
Eisaman, M. D., Geilert, S., Renforth, P., Bastianini, L., Campbell, J., Dale, A. W., Foteinis, S., Grasse, P., Hawrot, O., Löscher, C. R., Rau, G. H., and Rønning, J.: Assessing the technical aspects of ocean-alkalinity-enhancement approaches, in: Guide to Best Practices in Ocean Alkalinity Enhancement Research, edited by: Oschlies, A., Stevenson, A., Bach, L. T., Fennel, K., Rickaby, R. E. M., Satterfield, T., Webb, R., and Gattuso, J.-P., Copernicus Publications, State Planet, 2-oae2023, 3, https://doi.org/10.5194/sp-2-oae2023-3-2023, 2023.
Eriksson, E.: On the rate of dissolution of olivine in aqueous solutions, Vatten, 38, 409–415, 1982.
Feng, E. Y., Koeve, W., Keller, D. P., and Oschlies, A.: Model-Based Assessment of the CO2 Sequestration Potential of Coastal Ocean Alkalinization, Earths Future, 5, 1252–1266, https://doi.org/10.1002/2017EF000659, 2017.
Flipkens, G., Blust, R., and Town, R. M.: Deriving Nickel (Ni(II)) and Chromium (Cr(III)) Based Environmentally Safe Olivine Guidelines for Coastal Enhanced Silicate Weathering, Environ. Sci. Technol., 55, 12362–12371, https://doi.org/10.1021/acs.est.1c02974, 2021.
Flipkens, G., Horoba, K., Bostyn, K., Geerts, L. J. J., Town, R. M., and Blust, R.: Acute bioaccumulation and chronic toxicity of olivine in the marine amphipod Gammarus locusta, Aquat. Toxicol., 262, 106662, https://doi.org/10.1016/j.aquatox.2023.106662, 2023a.
Flipkens, G., Fuhr, M., Fiers, G., Meysman, F. J. R., Town, R. M., and Blust, R.: Enhanced olivine dissolution in seawater through continuous grain collisions, Geochim. Cosmochim. Ac., 359, 84–99, https://doi.org/10.1016/j.gca.2023.09.002, 2023b.
Foteinis, S., Campbell, J. S., and Renforth, P.: Life Cycle Assessment of Coastal Enhanced Weathering for Carbon Dioxide Removal from Air, Environ. Sci. Technol., 57, 6169–6178, https://doi.org/10.1021/acs.est.2c08633, 2023.
Fuhr, M., Geilert, S., Schmidt, M., Liebetrau, V., Vogt, C., Ledwig, B., and Wallmann, K.: Kinetics of Olivine Weathering in Seawater: An Experimental Study, Front. Clim., 4, 831587, https://doi.org/10.3389/fclim.2022.831587, 2022.
Fuhr, M., Wallmann, K., Dale, A. W., Diercks, I., Kalapurakkal, H. T., Schmidt, M., Sommer, S., Böhnke, S., Perner, M., and Geilert, S.: Disentangling artificial and natural benthic weathering in organic rich Baltic Sea sediments, Front. Clim., 5, 1245580, https://doi.org/10.3389/fclim.2023.1245580, 2023.
Fuhr, M., Wallmann, K., Dale, A. W., Kalapurakkal, H. T., Schmidt, M., Sommer, S., Deusner, C., Spiegel, T., Kowalski, J., and Geilert, S.: Alkaline mineral addition to anoxic to hypoxic Baltic Sea sediments as a potentially efficient CO2-removal technique, Front. Clim., 6, 1338556, https://doi.org/10.3389/fclim.2024.1338556, 2024.
Fuss, S., Lamb, W. F., Callaghan, M. W., Hilaire, J., Creutzig, F., Amann, T., Beringer, T., Garcia, W. de O., Hartmann, J., Khanna, T., Luderer, G., Nemet, G. F., Rogelj, J., Smith, P., Vicente, J. L. V., Wilcox, J., Dominguez, M. del M. Z., and Minx, J. C.: Negative emissions–Part 2: Costs, potentials and side effects, Environ. Res. Lett., 13, 063002, https://doi.org/10.1088/1748-9326/aabf9f, 2018.
Gaudin, A., Dehouck, E., Grauby, O., and Mangold, N.: Formation of clay minerals on Mars: Insights from long-term experimental weathering of olivine, Icarus, 311, 210–223, https://doi.org/10.1016/j.icarus.2018.01.029, 2018.
Gerrits, R., Pokharel, R., Breitenbach, R., Radnik, J., Feldmann, I., Schuessler, J. A., von Blanckenburg, F., Gorbushina, A. A., and Schott, J.: How the rock-inhabiting fungus K. petricola A95 enhances olivine dissolution through attachment, Geochim. Cosmochim. Ac., 282, 76–97, https://doi.org/10.1016/j.gca.2020.05.010, 2020.
Gerrits, R., Wirth, R., Schreiber, A., Feldmann, I., Knabe, N., Schott, J., Benning, L. G., and Gorbushina, A. A.: High-resolution imaging of fungal biofilm-induced olivine weathering, Chem. Geol., 559, 119902, https://doi.org/10.1016/j.chemgeo.2020.119902, 2021.
Giammar, D. E., Bruant, R. G., and Peters, C. A.: Forsterite dissolution and magnesite precipitation at conditions relevant for deep saline aquifer storage and sequestration of carbon dioxide, Chem. Geol., 217, 257–276, https://doi.org/10.1016/j.chemgeo.2004.12.013, 2005.
Goff, F. and Lackner, K. S.: Carbon Dioxide Sequestering Using Ultramaf ic Rocks, Environ. Geosci., 5, 89–102, https://doi.org/10.1046/j.1526-0984.1998.08014.x, 1998.
Goff, F., Guthrie, G., Lipin, B., Fite, M., Chipera, S., Counce, D., Kluk, E., and Ziock, H.: Evaluation of ultramafic deposits in the Eastern United States and Puerto Rico as sources of magnesium for carbon dioxide sequestration, Los Alamos National Lab. (LANL), Los Alamos, NM (United States), https://doi.org/10.2172/754045, 2000.
Golubev, S. V., Pokrovsky, O. S., and Schott, J.: Experimental determination of the effect of dissolved CO2 on the dissolution kinetics of Mg and Ca silicates at 25 ° C, Chem. Geol., 217, 227–238, https://doi.org/10.1016/j.chemgeo.2004.12.011, 2005.
Grandstaff, D. E.: Changes in surface area and morphology and the mechanism of forsterite dissolution, Geochim. Cosmochim. Ac., 42, 1899–1901, https://doi.org/10.1016/0016-7037(78)90245-4, 1978.
Grandstaff, D. E.: The dissolution rate of forsteritic olivine from Hawaiian beach sand, in: Rates of Chemical Weathering of Rocks and Minerals, edited by: Colman, S. M. and Dethier, D. P., Academic Press, 41–57, ISBN 9780121814908, 1986.
Griffioen, J.: Enhanced weathering of olivine in seawater: The efficiency as revealed by thermodynamic scenario analysis, Sci. Total Environ., 575, 536–544, https://doi.org/10.1016/j.scitotenv.2016.09.008, 2017.
Gruber, C., Harpaz, L., Zhu, C., Bullen, T. D., and Ganor, J.: A new approach for measuring dissolution rates of silicate minerals by using silicon isotopes, Geochim. Cosmochim. Ac., 104, 261–280, https://doi.org/10.1016/j.gca.2012.11.022, 2013.
Guo, J. A., Strzepek, R. F., Swadling, K. M., Townsend, A. T., and Bach, L. T.: Influence of ocean alkalinity enhancement with olivine or steel slag on a coastal plankton community in Tasmania, Biogeosciences, 21, 2335–2354, https://doi.org/10.5194/bg-21-2335-2024, 2024.
Hänchen, M., Prigiobbe, V., Storti, G., Seward, T. M., and Mazzotti, M.: Dissolution kinetics of fosteritic olivine at 90–150° C including effects of the presence of CO2, Geochim. Cosmochim. Ac., 70, 4403–4416, https://doi.org/10.1016/j.gca.2006.06.1560, 2006.
Hänchen, M., Krevor, S., Mazzotti, M., and Lackner, K. S.: Validation of a population balance model for olivine dissolution, Chem. Eng. Sci., 62, 6412–6422, https://doi.org/10.1016/j.ces.2007.07.065, 2007.
Hangx, S. J. T. and Spiers, C. J.: Coastal spreading of olivine to control atmospheric CO2 concentrations: A critical analysis of viability, Int. J. Greenh. Gas Control, 3, 757–767, https://doi.org/10.1016/j.ijggc.2009.07.001, 2009.
Harben, P. W. and Smith Jr., C.: Olivine, in: Industrial minerals & rocks: commodities, markets, and uses, edited by: Kogel, J. E., Trivedi, N. C., Barker, J. M., and Krukowski, S. T., SME, Littleton, Colo., 679–683, ISBN-13 978-0-87335-283-3, 2006.
Hartmann, J., West, A. J., Renforth, P., Köhler, P., Rocha, C. L. D. L., Wolf-Gladrow, D. A., Dürr, H. H., and Scheffran, J.: Enhanced chemical weathering as a geoengineering strategy to reduce atmospheric carbon dioxide, supply nutrients, and mitigate ocean acidification, Rev. Geophys., 51, 113–149, https://doi.org/10.1002/rog.20004, 2013.
Hartmann, J., Suitner, N., Lim, C., Schneider, J., Marín-Samper, L., Arístegui, J., Renforth, P., Taucher, J., and Riebesell, U.: Stability of alkalinity in ocean alkalinity enhancement (OAE) approaches – consequences for durability of CO2 storage, Biogeosciences, 20, 781–802, https://doi.org/10.5194/bg-20-781-2023, 2023.
Harvey, L. D. D.: Mitigating the atmospheric CO2 increase and ocean acidification by adding limestone powder to upwelling regions, J. Geophys. Res.-Oceans, 113, C04028, https://doi.org/10.1029/2007JC004373, 2008.
Hauck, J., Köhler, P., Wolf-Gladrow, D., and Völker, C.: Iron fertilisation and century-scale effects of open ocean dissolution of olivine in a simulated CO 2 removal experiment, Environ. Res. Lett., 11, 024007, https://doi.org/10.1088/1748-9326/11/2/024007, 2016.
Hausrath, E. M. and Brantley, S. L.: Basalt and olivine dissolution under cold, salty, and acidic conditions: What can we learn about recent aqueous weathering on Mars?, J. Geophys. Res.-Planets, 115, E12001, https://doi.org/10.1029/2010JE003610, 2010.
He, J. and Tyka, M. D.: Limits and CO2 equilibration of near-coast alkalinity enhancement, Biogeosciences, 20, 27–43, https://doi.org/10.5194/bg-20-27-2023, 2023.
Hellmann, R., Wirth, R., Daval, D., Barnes, J.-P., Penisson, J.-M., Tisserand, D., Epicier, T., Florin, B., and Hervig, R. L.: Unifying natural and laboratory chemical weathering with interfacial dissolution–reprecipitation: A study based on the nanometer-scale chemistry of fluid–silicate interfaces, Chem. Geol., 294–295, 203–216, https://doi.org/10.1016/j.chemgeo.2011.12.002, 2012.
Heřmanská, M., Voigt, M. J., Marieni, C., Declercq, J., and Oelkers, E. H.: A comprehensive and internally consistent mineral dissolution rate database: Part I: Primary silicate minerals and glasses, Chem. Geol., 597, 120807, https://doi.org/10.1016/j.chemgeo.2022.120807, 2022.
Hofmann, A. F., Meysman, F. J. R., Soetaert, K., and Middelburg, J. J.: A step-by-step procedure for pH model construction in aquatic systems, Biogeosciences, 5, 227–251, https://doi.org/10.5194/bg-5-227-2008, 2008.
Hofmann, A. F., Middelburg, J. J., Soetaert, K., and Meysman, F. J. R.: pH modelling in aquatic systems with time-variable acid-base dissociation constants applied to the turbid, tidal Scheldt estuary, Biogeosciences, 6, 1539–1561, https://doi.org/10.5194/bg-6-1539-2009, 2009.
Hu, X. and Cai, W.-J.: An assessment of ocean margin anaerobic processes on oceanic alkalinity budget, Glob. Biogeochem. Cy., 25, GB3003, https://doi.org/10.1029/2010GB003859, 2011.
Huettel, M. and Rusch, A.: Advective particle transport into permeable sediments–evidence from experiments in an intertidal sandflat, Limnol. Oceanogr., 45, 525–533, https://doi.org/10.4319/lo.2000.45.3.0525, 2000.
Hutchins, D. A., Fu, F.-X., Yang, S.-C., John, S. G., Romaniello, S. J., Andrews, M. G., and Walworth, N. G.: Responses of globally important phytoplankton species to olivine dissolution products and implications for carbon dioxide removal via ocean alkalinity enhancement, Biogeosciences, 20, 4669–4682, https://doi.org/10.5194/bg-20-4669-2023, 2023.
IPCC: Climate Change 2023: Synthesis Report. Contribution of Working Groups I, II and III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Lee, H. and Romero, J., https://doi.org/10.59327/IPCC/AR6-9789291691647.001, 2023.
Isson, T. T. and Planavsky, N. J.: Reverse weathering as a long-term stabilizer of marine pH and planetary climate, Nature, 560, 471–475, https://doi.org/10.1038/s41586-018-0408-4, 2018.
Jankowska, E., Montserrat, F., Romaniello, S. J., Walworth, N. G., and Andrews, M. G.: Metal bioaccumulation and effects of olivine sand exposure on benthic marine invertebrates, Chemosphere, 358, 142195, https://doi.org/10.1016/j.chemosphere.2024.142195, 2024.
Jiang, L.-Q., Carter, B. R., Feely, R. A., Lauvset, S. K., and Olsen, A.: Surface ocean pH and buffer capacity: past, present and future, Sci. Rep., 9, 18624, https://doi.org/10.1038/s41598-019-55039-4, 2019.
Johnson, K. S., Coale, K. H., and Jannasch, H. W.: Analytical chemistry and oceanography, Anal. Chem., 64, 1065A–1075A, https://doi.org/10.1021/ac00046a001, 1992.
Johnson, N. C., Thomas, B., Maher, K., Rosenbauer, R. J., Bird, D., and Brown, G. E.: Olivine dissolution and carbonation under conditions relevant for in situ carbon storage, Chem. Geol., 373, 93–105, https://doi.org/10.1016/j.chemgeo.2014.02.026, 2014.
Jones, D. C., Ito, T., Takano, Y., and Hsu, W.-C.: Spatial and seasonal variability of the air-sea equilibration timescale of carbon dioxide, Global Biogeochem. Cy., 28, 1163–1178, https://doi.org/10.1002/2014GB004813, 2014.
Keefner, J. W., Mackwell, S. J., Kohlstedt, D. L., and Heidelbach, F.: Dependence of dislocation creep of dunite on oxygen fugacity: Implications for viscosity variations in Earth's mantle, J. Geophys. Res.-Sol. Ea., 116, B05201, https://doi.org/10.1029/2010JB007748, 2011.
Klein, C., Hurlbut, C. S., and Dana, J. D.: Systematic descriptions of rock-forming silicates, in: The 22nd edition of the manual of mineral science: (after James D. Dana), J. Wiley, New York, 490–563, ISBN 978-0-471-25177-4, 2002.
Köhler, P., Hartmann, J., and Wolf-Gladrow, D. A.: Geoengineering potential of artificially enhanced silicate weathering of olivine, P. Natl. Acad. Sci., 107, 20228–20233, https://doi.org/10.1073/pnas.1000545107, 2010.
Köhler, P., Abrams, J. F., Völker, C., Hauck, J., and Wolf-Gladrow, D. A.: Geoengineering impact of open ocean dissolution of olivine on atmospheric CO2, surface ocean pH and marine biology, Environ. Res. Lett., 8, 014009, https://doi.org/10.1088/1748-9326/8/1/014009, 2013.
Kramer, D. A.: Magnesium Minerals and Compounds, in: Industrial minerals & rocks: commodities, markets, and uses, edited by: Kogel, J. E., Trivedi, N. C., Barker, J. M., and Krukowski, S. T., SME, Littleton, Colo., ISBN 978-0-87335-233-8, 2006.
Kremer, D., Etzold, S., Boldt, J., Blaum, P., Hahn, K. M., Wotruba, H., and Telle, R.: Geological Mapping and Characterization of Possible Primary Input Materials for the Mineral Sequestration of Carbon Dioxide in Europe, Minerals, 9, 485, https://doi.org/10.3390/min9080485, 2019.
Kristensen, E.: Impact of polychaetes (Nereis spp. and Arenicola marina) on carbon biogeochemistry in coastal marine sediments, Geochem. T., 2, 92, https://doi.org/10.1186/1467-4866-2-92, 2001.
Lackner, K. S.: Carbonate Chemistry for Sequestering Fossil Carbon, Annu. Rev. Energ. Env., 27, 193–232, https://doi.org/10.1146/annurev.energy.27.122001.083433, 2002.
Lasaga, A. C., Soler, J. M., Ganor, J., Burch, T. E., and Nagy, K. L.: Chemical weathering rate laws and global geochemical cycles, Geochim. Cosmochim. Ac., 58, 2361–2386, https://doi.org/10.1016/0016-7037(94)90016-7, 1994.
Le Hir, P., Cayocca, F., and Waeles, B.: Dynamics of sand and mud mixtures: A multiprocess-based modelling strategy, Cont. Shelf Res., 31, S135–S149, https://doi.org/10.1016/j.csr.2010.12.009, 2011.
Le Maitre, R. W., Streckeisen, A., Zanettin, B., Le Bas, M. J., Bonin, B., and Bateman, P. (Eds.): Igneous Rocks: A Classification and Glossary of Terms: Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Igneous Rocks, 2nd ed., Cambridge University Press, Cambridge, https://doi.org/10.1017/CBO9780511535581, 2002.
Li, C., Liu, X., Li, Y., Jiang, Y., Guo, X., Hutchins, D. A., Ma, J., Lin, X., and Dai, M.: The interactions between olivine dissolution and phytoplankton in seawater: Potential implications for ocean alkalinization, Sci. Total Environ., 912, 168571, https://doi.org/10.1016/j.scitotenv.2023.168571, 2024.
Lin, C. Y., Turchyn, A. V., Krylov, A., and Antler, G.: The microbially driven formation of siderite in salt marsh sediments, Geobiology, 18, 207–224, https://doi.org/10.1111/gbi.12371, 2020.
Luce, R. W., Bartlett, R. W., and Parks, G. A.: Dissolution kinetics of magnesium silicates, Geochim. Cosmochim. Ac., 36, 35–50, https://doi.org/10.1016/0016-7037(72)90119-6, 1972.
Lueker, T. J., Dickson, A. G., and Keeling, C. D.: Ocean pCO2 calculated from dissolved inorganic carbon, alkalinity, and equations for K1 and K2: validation based on laboratory measurements of CO2 in gas and seawater at equilibrium, Mar. Chem., 70, 105–119, https://doi.org/10.1016/S0304-4203(00)00022-0, 2000.
Lunstrum, A., Van Den Berghe, M., Bian, X., John, S., Nealson, K., and West, A. J.: Bacterial use of siderophores increases olivine dissolution rates by nearly an order of magnitude | Geochemical Perspectives Letters, Geochem. Perspect. Lett., 25, 51–55, https://doi.org/10.7185/geochemlet.2315, 2023.
Mackenzie, F. T. and Lerman, A.: Carbon Dioxide in Natural Waters, in: Carbon in the Geobiosphere — Earth's Outer Shell, edited by: Mackenzie, F. T. and Lerman, A., Springer Netherlands, Dordrecht, 123–147, https://doi.org/10.1007/1-4020-4238-8_1, 2006.
Maher, K., Johnson, N. C., Jackson, A., Lammers, L. N., Torchinsky, A. B., Weaver, K. L., Bird, D. K., and Brown, G. E.: A spatially resolved surface kinetic model for forsterite dissolution, Geochim. Cosmochim. Ac., 174, 313–334, https://doi.org/10.1016/j.gca.2015.11.019, 2016.
Mével, C.: Serpentinization of abyssal peridotites at mid-ocean ridges, CR. Geosci., 335, 825–852, https://doi.org/10.1016/j.crte.2003.08.006, 2003.
Meysman, F. J. R.: Cable Bacteria Take a New Breath Using Long-Distance Electricity, Trends Microbiol., 26, 411–422, https://doi.org/10.1016/j.tim.2017.10.011, 2018.
Meysman, F. J. R. and Montserrat, F.: Negative CO 2 emissions via enhanced silicate weathering in coastal environments, Biol. Lett., 13, 20160905, https://doi.org/10.1098/rsbl.2016.0905, 2017.
Meysman, F. J. R., Galaktionov, O. S., Cook, P. L. M., Janssen, F., Huettel, M., and Middelburg, J. J.: Quantifying biologically and physically induced flow and tracer dynamics in permeable sediments, Biogeosciences, 4, 627–646, https://doi.org/10.5194/bg-4-627-2007, 2007.
Meysman, F. J. R., Risgaard-Petersen, N., Malkin, S. Y., and Nielsen, L. P.: The geochemical fingerprint of microbial long-distance electron transport in the seafloor, Geochim. Cosmochim. Ac., 152, 122–142, https://doi.org/10.1016/j.gca.2014.12.014, 2015.
Middelburg, J. J., Soetaert, K., and Hagens, M.: Ocean Alkalinity, Buffering and Biogeochemical Processes, Rev. Geophys., 58, e2019RG000681, https://doi.org/10.1029/2019RG000681, 2020.
Milliman, J. D. and Droxler, A. W.: Neritic and pelagic carbonate sedimentation in the marine environment: ignorance is not bliss, Geol. Rundsch., 85, 496–504, https://doi.org/10.1007/BF02369004, 1996.
Minx, J. C., Lamb, W. F., Callaghan, M. W., Fuss, S., Hilaire, J., Creutzig, F., Amann, T., Beringer, T., Garcia, W. de O., Hartmann, J., Khanna, T., Lenzi, D., Luderer, G., Nemet, G. F., Rogelj, J., Smith, P., Vicente, J. L. V., Wilcox, J., and del Dominguez, M. M. Z.: Negative emissions–Part 1: Research landscape and synthesis, Environ. Res. Lett., 13, 063001, https://doi.org/10.1088/1748-9326/aabf9b, 2018.
Montserrat, F., Renforth, P., Hartmann, J., Leermakers, M., Knops, P., and Meysman, F. J. R.: Olivine Dissolution in Seawater: Implications for CO2 Sequestration through Enhanced Weathering in Coastal Environments, Environ. Sci. Technol., 51, 3960–3972, https://doi.org/10.1021/acs.est.6b05942, 2017.
Moosdorf, N., Renforth, P., and Hartmann, J.: Carbon Dioxide Efficiency of Terrestrial Enhanced Weathering, Environ. Sci. Technol., 48, 4809–4816, https://doi.org/10.1021/es4052022, 2014.
Moras, C. A., Bach, L. T., Cyronak, T., Joannes-Boyau, R., and Schulz, K. G.: Ocean alkalinity enhancement – avoiding runaway CaCO3 precipitation during quick and hydrated lime dissolution, Biogeosciences, 19, 3537–3557, https://doi.org/10.5194/bg-19-3537-2022, 2022.
Moras, C. A., Joannes-Boyau, R., Bach, L. T., Cyronak, T., and Schulz, K. G.: Carbon dioxide removal efficiency of iron and steel slag in seawater via ocean alkalinity enhancement, Front. Clim., 6, 1396487, https://doi.org/10.3389/fclim.2024.1396487, 2024.
Morse, J. W. and Mackenzie, F. T.: Geochemistry of Sedimentary Carbonates, Elsevier Science, ISBN 978-0-08-086962-9, 1990.
Morse, J. W., Arvidson, R. S., and Lüttge, A.: Calcium Carbonate Formation and Dissolution, Chem. Rev., 107, 342–381, https://doi.org/10.1021/cr050358j, 2007.
Mulders, J. J. P. A. and Oelkers, Eric. H.: An experimental study of sepiolite dissolution rates and mechanisms at 25° C, Geochim. Cosmochim. Ac., 270, 296–312, https://doi.org/10.1016/j.gca.2019.11.026, 2020.
Mulders, J. J. P. A., Harrison, A. L., Christ, J., and Oelkers, E. H.: Non-stoichiometric dissolution of sepiolite, Energy Proced., 146, 74–80, https://doi.org/10.1016/j.egypro.2018.07.011, 2018.
NASEM: Ocean Alkalinity Enhancement, in: A Research Strategy for Ocean-based Carbon Dioxide Removal and Sequestration, National Academies Press (US), Washington (DC), https://doi.org/10.17226/26278, 2022.
Neubeck, A., Duc, N. T., Bastviken, D., Crill, P., and Holm, N. G.: Formation of H2 and CH4 by weathering of olivine at temperatures between 30 and 70° C, Geochem. T., 12, 6, https://doi.org/10.1186/1467-4866-12-6, 2011.
Niles, P. B., Michalski, J., Ming, D. W., and Golden, D. C.: Elevated olivine weathering rates and sulfate formation at cryogenic temperatures on Mars, Nat. Commun., 8, 998, https://doi.org/10.1038/s41467-017-01227-7, 2017.
Oelkers, E. H.: An experimental study of forsterite dissolution rates as a function of temperature and aqueous Mg and Si concentrations, Chem. Geol., 175, 485–494, https://doi.org/10.1016/S0009-2541(00)00352-1, 2001a.
Oelkers, E. H.: General kinetic description of multioxide silicate mineral and glass dissolution, Geochim. Cosmochim. Ac., 65, 3703–3719, https://doi.org/10.1016/S0016-7037(01)00710-4, 2001b.
Oelkers, E. H., Declercq, J., Saldi, G. D., Gislason, S. R., and Schott, J.: Olivine dissolution rates: A critical review, Chem. Geol., 500, 1–19, https://doi.org/10.1016/j.chemgeo.2018.10.008, 2018.
Olsen, A. A.: Forsterite Dissolution Kinetics: Applications and Implications for Chemical Weathering, Doctoral thesis, Virginia Tech, 98 pp., https://vtechworks.lib.vt.edu/handle/10919/28213 (last access: 20 January 2025), 2007.
Olsen, A. A. and Donald Rimstidt, J.: Oxalate-promoted forsterite dissolution at low pH, Geochim. Cosmochim. Ac., 72, 1758–1766, https://doi.org/10.1016/j.gca.2007.12.026, 2008.
Olsen, A. A., Hausrath, E. M., and Rimstidt, J. D.: Forsterite dissolution rates in Mg-sulfate-rich Mars-analog brines and implications of the aqueous history of Mars, J. Geophys. Res.-Planets, 120, 388–400, https://doi.org/10.1002/2014JE004664, 2015.
Orlando, A., Borrini, D., and Marini, L.: Dissolution and carbonation of a serpentinite: Inferences from acid attack and high P–T experiments performed in aqueous solutions at variable salinity, Appl. Geochem., 26, 1569–1583, https://doi.org/10.1016/j.apgeochem.2011.06.023, 2011.
Ouillon, S.: Why and How Do We Study Sediment Transport? Focus on Coastal Zones and Ongoing Methods, Water, 10, 390, https://doi.org/10.3390/w10040390, 2018.
Palandri, J. L. and Kharaka, Y. K.: A Compilation of Rate Parameters of Water-Mineral Interaction Kinetics for Application to Geochemical Modeling, Geological survey Menlo Park California, https://doi.org/10.3133/ofr20041068, 2004.
Pfeffer, C., Larsen, S., Song, J., Dong, M., Besenbacher, F., Meyer, R. L., Kjeldsen, K. U., Schreiber, L., Gorby, Y. A., El-Naggar, M. Y., Leung, K. M., Schramm, A., Risgaard-Petersen, N., and Nielsen, L. P.: Filamentous bacteria transport electrons over centimetre distances, Nature, 491, 218–221, https://doi.org/10.1038/nature11586, 2012.
Pfeifer, K., Hensen, C., Adler, M., Wenzhfer, F., Weber, B., and Schulz, H. D.: Modeling of subsurface calcite dissolution, including the respiration and reoxidation processes of marine sediments in the region of equatorial upwelling off Gabon, Geochim. Cosmochim. Ac., 66, 4247–4259, https://doi.org/10.1016/S0016-7037(02)01073-6, 2002.
Pokrovsky, O. S. and Schott, J.: Kinetics and mechanism of forsterite dissolution at 25° C and pH from 1 to 12, Geochim. Cosmochim. Ac., 64, 3313–3325, https://doi.org/10.1016/S0016-7037(00)00434-8, 2000.
Pokrovsky, O. S. and Schott, J.: Experimental study of brucite dissolution and precipitation in aqueous solutions: surface speciation and chemical affinity control, Geochim. Cosmochim. Ac., 68, 31–45, https://doi.org/10.1016/S0016-7037(03)00238-2, 2004.
Prigiobbe, V., Costa, G., Baciocchi, R., Hänchen, M., and Mazzotti, M.: The effect of CO2 and salinity on olivine dissolution kinetics at 120° C, Chem. Eng. Sci., 64, 3510–3515, https://doi.org/10.1016/j.ces.2009.04.035, 2009.
Rao, A. M. F., Polerecky, L., Ionescu, D., Meysman, F. J. R., and de Beer, D.: The influence of pore-water advection, benthic photosynthesis, and respiration on calcium carbonate dynamics in reef sands, Limnol. Oceanogr., 57, 809–825, https://doi.org/10.4319/lo.2012.57.3.0809, 2012.
Rao, A. M. F., Malkin, S. Y., Montserrat, F., and Meysman, F. J. R.: Alkalinity production in intertidal sands intensified by lugworm bioirrigation, Estuar. Coast. Shelf Sci., 148, 36–47, https://doi.org/10.1016/j.ecss.2014.06.006, 2014.
Rau, G. H.: Electrochemical Splitting of Calcium Carbonate to Increase Solution Alkalinity: Implications for Mitigation of Carbon Dioxide and Ocean Acidity, Environ. Sci. Technol., 42, 8935–8940, https://doi.org/10.1021/es800366q, 2008.
Rau, G. H., Willauer, H. D., and Ren, Z. J.: The global potential for converting renewable electricity to negative-CO2-emissions hydrogen, Nat. Clim. Change, 8, 621–625, https://doi.org/10.1038/s41558-018-0203-0, 2018.
Rehfeldt, T., Jacob, D. E., Carlson, R. W., and Foley, S. F.: Fe-rich Dunite Xenoliths from South African Kimberlites: Cumulates from Karoo Flood Basalts, J. Petrol., 48, 1387–1409, https://doi.org/10.1093/petrology/egm023, 2007.
Renforth, P.: The potential of enhanced weathering in the UK, Int. J. Greenh. Gas Con., 10, 229–243, https://doi.org/10.1016/j.ijggc.2012.06.011, 2012.
Renforth, P.: The negative emission potential of alkaline materials, Nat. Commun., 10, 1401, https://doi.org/10.1038/s41467-019-09475-5, 2019.
Renforth, P. and Henderson, G.: Assessing ocean alkalinity for carbon sequestration, Rev. Geophys., 55, 636–674, https://doi.org/10.1002/2016RG000533, 2017.
Renforth, P., Jenkins, B. G., and Kruger, T.: Engineering challenges of ocean liming, Energy, 60, 442–452, https://doi.org/10.1016/j.energy.2013.08.006, 2013.
Riahi, K., Bertram, C., Huppmann, D., Rogelj, J., Bosetti, V., Cabardos, A.-M., Deppermann, A., Drouet, L., Frank, S., Fricko, O., Fujimori, S., Harmsen, M., Hasegawa, T., Krey, V., Luderer, G., Paroussos, L., Schaeffer, R., Weitzel, M., van der Zwaan, B., Vrontisi, Z., Longa, F. D., Després, J., Fosse, F., Fragkiadakis, K., Gusti, M., Humpenöder, F., Keramidas, K., Kishimoto, P., Kriegler, E., Meinshausen, M., Nogueira, L. P., Oshiro, K., Popp, A., Rochedo, P. R. R., Ünlü, G., van Ruijven, B., Takakura, J., Tavoni, M., van Vuuren, D., and Zakeri, B.: Cost and attainability of meeting stringent climate targets without overshoot, Nat. Clim. Change, 11, 1063–1069, https://doi.org/10.1038/s41558-021-01215-2, 2021.
Riebesell, U., Basso, D., Geilert, S., Dale, A. W., and Kreuzburg, M.: Mesocosm experiments in ocean alkalinity enhancement research, in: Guide to Best Practices in Ocean Alkalinity Enhancement Research, edited by: Oschlies, A., Stevenson, A., Bach, L. T., Fennel, K., Rickaby, R. E. M., Satterfield, T., Webb, R., and Gattuso, J.-P., Copernicus Publications, State Planet, 2-oae2023, 6, https://doi.org/10.5194/sp-2-oae2023-6-2023, 2023.
Rigopoulos, I., Harrison, A. L., Delimitis, A., Ioannou, I., Efstathiou, A. M., Kyratsi, T., and Oelkers, E. H.: Carbon sequestration via enhanced weathering of peridotites and basalts in seawater, Appl. Geochem., 91, 197–207, https://doi.org/10.1016/j.apgeochem.2017.11.001, 2018.
Rimstidt, J. D., Brantley, S. L., and Olsen, A. A.: Systematic review of forsterite dissolution rate data, Geochim. Cosmochim. Ac., 99, 159–178, https://doi.org/10.1016/j.gca.2012.09.019, 2012.
Robinson, S. M., Santini, K., and Moroney, J.: Wollastonite, in: Industrial minerals & rocks: commodities, markets, and uses, edited by: Kogel, J. E., Trivedi, N. C., Barker, J. M., and Krukowski, S. T., SME, Littleton, Colo., 1027–1037, ISBN 978-0-87335-233-8, 2006.
Rockström, J., Gaffney, O., Rogelj, J., Meinshausen, M., Nakicenovic, N., and Schellnhuber, H. J.: A roadmap for rapid decarbonization, Science, 355, 1269–1271, https://doi.org/10.1126/science.aah3443, 2017.
Rosso, J. J. and Rimstidt, J. D.: A high resolution study of forsterite dissolution rates, Geochim. Cosmochim. Ac., 64, 797–811, https://doi.org/10.1016/S0016-7037(99)00354-3, 2000.
Saldi, G. D., Jordan, G., Schott, J., and Oelkers, E. H.: Magnesite growth rates as a function of temperature and saturation state, Geochim. Cosmochim. Ac., 73, 5646–5657, https://doi.org/10.1016/j.gca.2009.06.035, 2009.
Sanderson, B. M., O'Neill, B. C., and Tebaldi, C.: What would it take to achieve the Paris temperature targets?, Geophys. Res. Lett., 43, 7133–7142, https://doi.org/10.1002/2016GL069563, 2016.
Santos, R. M., Van Audenaerde, A., Chiang, Y. W., Iacobescu, R. I., Knops, P., and Van Gerven, T.: Nickel Extraction from Olivine: Effect of Carbonation Pre-Treatment, Metals, 5, 1620–1644, https://doi.org/10.3390/met5031620, 2015.
Sarmiento, J. L. and Gruber, N.: Ocean Biogeochemical Dynamics, Princeton University Press, https://doi.org/10.2307/j.ctt3fgxqx, 2006.
Schippers, A. and Jørgensen, B. B.: Biogeochemistry of pyrite and iron sulfide oxidation in marine sediments, Geochim. Cosmochim. Ac., 66, 85–92, https://doi.org/10.1016/S0016-7037(01)00745-1, 2002.
Schuiling, R. D. and Krijgsman, P.: Enhanced Weathering: An Effective and Cheap Tool to Sequester CO2, Clim. Change, 74, 349–354, https://doi.org/10.1007/s10584-005-3485-y, 2006.
Schulz, K. G., Bach, L. T., and Dickson, A. G.: Seawater carbonate chemistry considerations for ocean alkalinity enhancement research: theory, measurements, and calculations, in: Guide to Best Practices in Ocean Alkalinity Enhancement Research, edited by: Oschlies, A., Stevenson, A., Bach, L. T., Fennel, K., Rickaby, R. E. M., Satterfield, T., Webb, R., and Gattuso, J.-P., Copernicus Publications, State Planet, 2-oae2023, 2, https://doi.org/10.5194/sp-2-oae2023-2-2023, 2023.
Schwarzenbach, E. M., Früh-Green, G. L., Bernasconi, S. M., Alt, J. C., Shanks Iii, W. C., Gaggero, L., and Crispini, L.: Sulfur geochemistry of peridotite-hosted hydrothermal systems: Comparing the Ligurian ophiolites with oceanic serpentinites, Geochim. Cosmochim. Ac., 91, 283–305, https://doi.org/10.1016/j.gca.2012.05.021, 2012.
Sherman, G. D. and Uehara, G.: The Weathering of Olivine Basalt in Hawaii and its Pedogenic Significance, Soil Sci. Soc. Am. J., 20, 337–340, https://doi.org/10.2136/sssaj1956.03615995002000030011x, 1956.
Shirokova, L. S., Bénézeth, P., Pokrovsky, O. S., Gerard, E., Ménez, B., and Alfredsson, H.: Effect of the heterotrophic bacterium Pseudomonas reactans on olivine dissolution kinetics and implications for CO2 storage in basalts, Geochim. Cosmochim. Ac., 80, 30–50, https://doi.org/10.1016/j.gca.2011.11.046, 2012.
Siegel, D. I. and Pfannkuch, H. O.: Silicate mineral dissolution at pH 4 and near standard temperature and pressure, Geochim. Cosmochim. Ac., 48, 197–201, https://doi.org/10.1016/0016-7037(84)90362-4, 1984.
Silburn, B., Kröger, S., Parker, E. R., Sivyer, D. B., Hicks, N., Powell, C. F., Johnson, M., and Greenwood, N.: Benthic pH gradients across a range of shelf sea sediment types linked to sediment characteristics and seasonal variability, Biogeochemistry, 135, 69–88, https://doi.org/10.1007/s10533-017-0323-z, 2017.
Simandl, G. J., Paradis, S., and Irvine, M.: Brucite – Industrial Mineral with a Future, Geosci. Can., 34, 57–64, 2007.
Sissmann, O., Daval, D., Brunet, F., Guyot, F., Verlaguet, A., Pinquier, Y., Findling, N., and Martinez, I.: The deleterious effect of secondary phases on olivine carbonation yield: Insight from time-resolved aqueous-fluid sampling and FIB-TEM characterization, Chem. Geol., 357, 186–202, https://doi.org/10.1016/j.chemgeo.2013.08.031, 2013.
Smith, K. L., Milnes, A. R., and Eggleton, R. A.: Weathering of Basalt: Formation of Iddingsite, Clay. Clay Miner., 35, 418–428, https://doi.org/10.1346/CCMN.1987.0350602, 1987.
Smith, P., Davis, S. J., Creutzig, F., Fuss, S., Minx, J., Gabrielle, B., Kato, E., Jackson, R. B., Cowie, A., Kriegler, E., van Vuuren, D. P., Rogelj, J., Ciais, P., Milne, J., Canadell, J. G., McCollum, D., Peters, G., Andrew, R., Krey, V., Shrestha, G., Friedlingstein, P., Gasser, T., Grübler, A., Heidug, W. K., Jonas, M., Jones, C. D., Kraxner, F., Littleton, E., Lowe, J., Moreira, J. R., Nakicenovic, N., Obersteiner, M., Patwardhan, A., Rogner, M., Rubin, E., Sharifi, A., Torvanger, A., Yamagata, Y., Edmonds, J., and Yongsung, C.: Biophysical and economic limits to negative CO2 emissions, Nat. Clim. Change, 6, 42–50, https://doi.org/10.1038/nclimate2870, 2016.
Strefler, J., Amann, T., Bauer, N., Kriegler, E., and Hartmann, J.: Potential and costs of carbon dioxide removal by enhanced weathering of rocks, Environ. Res. Lett., 13, 034010, https://doi.org/10.1088/1748-9326/aaa9c4, 2018.
Su, B., Chen, Y., Guo, S., and Liu, J.: Origins of orogenic dunites: Petrology, geochemistry, and implications, Gondwana Res., 29, 41–59, https://doi.org/10.1016/j.gr.2015.08.001, 2016.
Summers, C. A., Dahlin, D. C., Rush, G. E., O'Connor, W. K., and Gerdemann, S. J.: Grinding methods to enhance the reactivity of olivine, Min. Metall. Explor., 22, 140–144, https://doi.org/10.1007/BF03403128, 2005.
Sun, K. H. and Huggins, M. L.: Energy additivity in oxygen-containing crystals and glasses, J. Phys. Colloid Chem., 51, 438–443, https://doi.org/10.1021/j150452a009, 1947.
Sun, M.-S.: The Nature of Iddingsite in Some Basaltic Rocks of New Mexico, Am. Mineral., 42, 525–533, 1957.
te Pas, E. E. E. M., Hagens, M., and Comans, R. N. J.: Assessment of the enhanced weathering potential of different silicate minerals to improve soil quality and sequester CO2, Front. Clim., 4, 95406, https://doi.org/10.3389/fclim.2022.954064, 2023.
Terlouw, T., Bauer, C., Rosa, L., and Mazzotti, M.: Life cycle assessment of carbon dioxide removal technologies: a critical review, Energy Environ. Sci., 14, 1701–1721, https://doi.org/10.1039/D0EE03757E, 2021.
Tester, J. W., Worley, W. G., Robinson, B. A., Grigsby, C. O., and Feerer, J. L.: Correlating quartz dissolution kinetics in pure water from 25 to 625° C, Geochim. Cosmochim. Ac., 58, 2407–2420, https://doi.org/10.1016/0016-7037(94)90020-5, 1994.
Torres, M. A., Dong, S., Nealson, K. H., and West, A. J.: The kinetics of siderophore-mediated olivine dissolution, Geobiology, 17, 401–416, https://doi.org/10.1111/gbi.12332, 2019.
Tosca, N. J. and Masterson, A. L.: Chemical controls on incipient Mg-silicate crystallization at 25° C: Implications for early and late diagenesis, Clay Miner., 49, 165–194, https://doi.org/10.1180/claymin.2014.049.2.03, 2014.
Turchyn, A. V., Bradbury, H. J., Walker, K., and Sun, X.: Controls on the Precipitation of Carbonate Minerals Within Marine Sediments, Front. Earth Sci., 9, 618311, https://doi.org/10.3389/feart.2021.618311, 2021.
UNFCCC: Paris Agreement to the United Nations Framework Convention on Climate Change, 2015.
USGS: Can oceans store more CO2 to help with climate change?, U.S. Geological Survey, USGS, https://www.usgs.gov/news/science-snippet/can-oceans-store-more-co2-help-climate-change (last accessed: 25 September 2024), 2023.
Van Herk, J., Pietersen, H. S., and Schuiling, R. D.: Neutralization of industrial waste acids with olivine – The dissolution of forsteritic olivine at 40–70° C, Chem. Geol., 76, 341–352, https://doi.org/10.1016/0009-2541(89)90102-2, 1989.
Vandeginste, V., Lim, C., and Ji, Y.: Exploratory Review on Environmental Aspects of Enhanced Weathering as a Carbon Dioxide Removal Method, Minerals, 14, 75, https://doi.org/10.3390/min14010075, 2024.
Velbel, M. A.: Bond strength and the relative weathering rates of simple orthosilicates, Am. J. Sci., 299, 679–696, https://doi.org/10.2475/ajs.299.7-9.679, 1999.
Velbel, M. A.: Dissolution of olivine during natural weathering, Geochim. Cosmochim. Ac., 73, 6098–6113, https://doi.org/10.1016/j.gca.2009.07.024, 2009.
Vesta: North Sea Beach Annual Monitoring Report, https://www.vesta.earth/field-pilots (last access: 4 June 2024), 2023.
Volkenborn, N., Polerecky, L., Hedtkamp, S. I. C., van Beusekom, J. E. E., and de Beer, D.: Bioturbation and bioirrigation extend the open exchange regions in permeable sediments, Limnol. Oceanogr., 52, 1898–1909, https://doi.org/10.4319/lo.2007.52.5.1898, 2007.
Wallmann, K., Aloisi, G., Haeckel, M., Tishchenko, P., Pavlova, G., Greinert, J., Kutterolf, S., and Eisenhauer, A.: Silicate weathering in anoxic marine sediments, Geochim. Cosmochim. Ac., 72, 2895–2918, https://doi.org/10.1016/j.gca.2008.03.026, 2008.
Wang, B., Gao, X., Song, J., Li, X., Yuan, H., Xie, L., Zhao, J., Xing, Q., and Qin, S.: Feasibility of increasing marine carbon storage through olivine addition, J. Environ. Chem. Eng., 11, 111221, https://doi.org/10.1016/j.jece.2023.111221, 2023.
White, A. F. and Brantley, S. L. (Eds.): Chemical Weathering Rates of Silicate Minerals, De Gruyter, Berlin, Boston, https://doi.org/10.1515/9781501509650, 1995.
Widdicombe, S., Spicer, J. I., and Kitidis, V.: Effects of ocean acidification on sediment fauna, in: Ocean Acidification, edited by: Gattuso, J.-P., Hansson, L., Gattuso, J.-P., and Hansson, L., Oxford University Press, Oxford, New York, ISBN 978-0-19-959109-1, 2011.
Wilshire, H. G.: Alteration of olivine and orthopyroxene in basic lavas and shallow intrusions, Am. Mineral., 43, 120–147, 1958.
Wilson, M. J.: Weathering of the primary rock-forming minerals: processes, products and rates, Clay Miner., 39, 233–266, https://doi.org/10.1180/0009855043930133, 2004.
Wogelius, R. A. and Walther, J. V.: Olivine dissolution at 25° C: Effects of pH, CO2, and organic acids, Geochim. Cosmochim. Ac., 55, 943–954, https://doi.org/10.1016/0016-7037(91)90153-V, 1991.
Wolf-Gladrow, D. A., Zeebe, R. E., Klaas, C., Körtzinger, A., and Dickson, A. G.: Total alkalinity: The explicit conservative expression and its application to biogeochemical processes, Mar. Chem., 106, 287–300, https://doi.org/10.1016/j.marchem.2007.01.006, 2007.
Wollast, R., Mackenzie, F. T., and Bricker, O. P.: Experimental precipitation and genesis of sepiolite at earth-surface conditions, Am. Mineral., 53, 1645–1662, 1968.
Xu, Y.-Y., Pierrot, D., and Cai, W.-J.: Ocean carbonate system computation for anoxic waters using an updated CO2SYS program, Mar. Chem., 195, 90–93, https://doi.org/10.1016/j.marchem.2017.07.002, 2017.
Yang, B., Leonard, J., and Langdon, C.: Seawater alkalinity enhancement with magnesium hydroxide and its implication for carbon dioxide removal, Mar. Chem., 253, 104251, https://doi.org/10.1016/j.marchem.2023.104251, 2023.
Zeebe, R. E. and Wolf-Gladrow, D. (Eds.): Chapter 1 Equilibrium, in: Elsevier Oceanography Series, vol. 65, Elsevier, 1–84, https://doi.org/10.1016/S0422-9894(01)80002-7, 2001.
Zhou, M., Tyka, M., Ho, D., Yankovsky, E., Bachman, S., Nicholas, T., Karspeck, A., and Long, M.: Mapping the global variation in the efficiency of ocean alkalinity enhancement for carbon dioxide removal, Nat. Clim. Change, 15, 59–65, https://doi.org/10.1038/s41558-024-02179-9, 2025.
Zhu, Q., Aller, R. C., and Fan, Y.: Two-dimensional pH distributions and dynamics in bioturbated marine sediments, Geochim. Cosmochim. Ac., 70, 4933–4949, https://doi.org/10.1016/j.gca.2006.07.033, 2006.
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Marine enhanced rock weathering (mERW) with olivine is a promising method for capturing CO2 from the atmosphere, yet studies in field conditions are lacking. We bridge the gap between theoretical studies and the real-world environment by estimating the predictability of mERW parameters and identifying aspects to consider when applying mERW. A major source of uncertainty is the lack of experimental studies with sediment, which can heavily influence the speed and efficiency of CO2 drawdown.
Marine enhanced rock weathering (mERW) with olivine is a promising method for capturing CO2 from...
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