the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Rolling stones; fast weathering of olivine in shallow seas for cost-effective CO2 capture and mitigation of global warming and ocean acidification
Abstract. Human CO2 emissions may drive the Earth into a next greenhouse state. They can be mitigated by accelerating weathering of natural rock under the uptake of CO2. We disprove the paradigm that olivine weathering in nature would be a slow process, and show that it is not needed to mill olivine to very fine, 10 μm-size grains in order to arrive at a complete dissolution within 1–2 year. In high-energy shallow marine environments olivine grains and reaction products on the grain surfaces, that otherwise would greatly retard the reaction, are abraded so that the chemical reaction is much accelerated. When kept in motion even large olivine grains rubbing and bumping against each other quickly produce fine clay- and silt-sized olivine particles that show a fast chemical reaction. Spreading of olivine in the world's 2% most energetic shelf seas can compensate a year's global CO2 emissions and counteract ocean acidification against a price well below that of carbon credits.
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RC C316: 'Comments to Schuiling and de Boer: Rolling Stones…', Jelle Bijma, 10 Dec 2011
- AC C350: 'response to Bijma', Poppe de Boer, 08 Apr 2012
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RC C318: 'Inadequate', Anonymous Referee #2, 11 Dec 2011
- AC C322: 'Response to anonymous referee #2', Poppe de Boer, 19 Dec 2011
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RC C316: 'Comments to Schuiling and de Boer: Rolling Stones…', Jelle Bijma, 10 Dec 2011
- AC C350: 'response to Bijma', Poppe de Boer, 08 Apr 2012
-
RC C318: 'Inadequate', Anonymous Referee #2, 11 Dec 2011
- AC C322: 'Response to anonymous referee #2', Poppe de Boer, 19 Dec 2011
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Cited
13 citations as recorded by crossref.
- Enhanced chemical weathering as a geoengineering strategy to reduce atmospheric carbon dioxide, supply nutrients, and mitigate ocean acidification J. Hartmann et al. 10.1002/rog.20004
- Six commercially viable ways to remove CO2 from the atmosphere and/or reduce CO2 emissions R. Schuiling & P. de Boer 10.1186/2190-4715-25-35
- Limits and CO2equilibration of near-coast alkalinity enhancement J. He & M. Tyka 10.5194/bg-20-27-2023
- Geochemical Negative Emissions Technologies: Part I. Review J. Campbell et al. 10.3389/fclim.2022.879133
- Enhanced weathering of olivine in seawater: The efficiency as revealed by thermodynamic scenario analysis J. Griffioen 10.1016/j.scitotenv.2016.09.008
- Carbon sequestration via enhanced weathering of peridotites and basalts in seawater I. Rigopoulos et al. 10.1016/j.apgeochem.2017.11.001
- Olivine Weathering against Climate Change R. Schuiling 10.4236/ns.2017.91002
- Desalination as a negative emissions technology P. Davies et al. 10.1039/C7EW00502D
- Negative CO 2 emissions via enhanced silicate weathering in coastal environments F. Meysman & F. Montserrat 10.1098/rsbl.2016.0905
- Enhanced hydrogen production with carbon storage by olivine alteration in CO2-rich hydrothermal environments J. Wang et al. 10.1016/j.jcou.2019.02.008
- Life’s Critical Role in the Long-term Carbon Cycle: the Biotic Enhancement of Weathering D. W. Schwartzman 10.3934/geosci.2017.2.216
- Modeling the Dynamic Landscape Evolution of a Volcanic Coastal Environment Under Future Climate Trajectories K. Manley et al. 10.3389/feart.2020.550312
- Assessing the technical aspects of ocean-alkalinity-enhancement approaches M. Eisaman et al. 10.5194/sp-2-oae2023-3-2023