27.03.2017

# New Publications

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Montserrat, Francesc; et al. (2017): Olivine Dissolution in Seawater: Implications for CO2 Sequestration through Enhanced Weathering in Coastal Environments

Montserrat, Francesc; Renforth, Phil; Hartmann, Jens; Leermakers, Martine; Knops, Pol; Meysman, Filip J. R. (2017): Olivine Dissolution in Seawater: Implications for CO2 Sequestration through Enhanced Weathering in Coastal Environments. In Environ. Sci. Technol. DOI: 10.1021/acs.est.6b05942.

"Here, we present results from batch reaction experiments, in which forsteritic olivine was subjected to rotational agitation in different seawater media for periods of days to months. Olivine dissolution caused a significant increase in alkalinity of the seawater with a consequent DIC increase due to CO2 invasion, thus confirming viability of the basic concept of enhanced silicate weathering."

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06.07.2016

# Media

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Energy Collective: The Carbonate Solution, Part 2: Other Approaches

"I want to cover three other ways to exploit the chemistries of common carbonate minerals for large scale carbon capture and storage. They are less direct, and each has its own issues, but all three are much more energy-efficient than brute force calcination of limestone."

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24.04.2016

# Media

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Environmental Research Web: How much carbon would adding olivine to the oceans remove?

"Give them enough time and some rocks will munch carbon dioxide, removing it from the atmosphere. Now scientists are using computer models to explore the possibility of speeding up this natural weathering process by sprinkling rock granules in the oceans, as a way of removing carbon dioxide from the atmosphere faster and counteracting climate change."

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02.03.2016

# New Publications

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Fasihnikoutalab, Mohammad Hamed; et al. (2016): Utilisation of carbonating olivine for sustainable soil stabilisation

"This paper describes the first study demonstrating the potential of olivine as a soil stabiliser. Olivine has been shown to provide a reactive source of magnesium oxide capable of sequestering carbon dioxide. The effects of olivine additions on consistency limits, compaction characteristics and unconfined compressive strength (UCS) of soil are described."

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20.02.2016

# New Publications

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Hauck, Judith; et al. (2016): Iron fertilisation and century-scale effects of open ocean dissolution of olivine in a simulated CO2 removal experiment

Hauck, Judith; Köhler, Peter; Wolf-Gladrow, Dieter; Völker, Christoph (2016): Iron fertilisation and century-scale effects of open ocean dissolution of olivine in a simulated CO2 removal experiment. In Environ. Res. Lett. 11 (2), p. 24007–24007. DOI 10.1088/1748-9326/11/2/024007.

"Here we use a marine carbon cycle model to investigate the effects of one CDR technique: the open ocean dissolution of the iron-containing mineral olivine. We analyse the maximum CDR potential of an annual dissolution of 3 Pg olivine during the 21st century and focus on the role of the micro-nutrient iron for the biological carbon pump."

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11.06.2015

# New Publications

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Renforth, P.; et al. (2015): The dissolution of olivine added to soil: Implications for enhanced weathering

Renforth, P.; Pogge von Strandmann, P.A.E.; Henderson, G. M. (2015): The dissolution of olivine added to soil: Implications for enhanced weathering. In Applied Geochemistry 61, pp. 109–118. DOI 10.1016/j.apgeochem.2015.05.016.

"Here we present results from laboratory flow-through dissolution experiments which seek to bridge this observational discrepancy by using columns of soil returned to the laboratory from a field site. We constrain the dissolution rate of olivine added to the top of one of these columns, while maintaining much of the complexity inherent in the soil environment."

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02.05.2015

# New Publications

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Fasihnikoutalab, Mohammad Hamed; et al. (2015): New Insights into Potential Capacity of Olivine in Ground Improvement

Fasihnikoutalab, Mohammad Hamed; Westgate, Paul; B.B.K, Huat; Asadi, Afshin; Ball, Richard J.; Nahazanan, Haslinda; Singh, Parminder (2015): New Insights into Potential Capacity of Olivine in Ground Improvement. In The Electronic Journal of Geotechnical Engineering 20 (8), pp. 2137–2148.

"Olivine with chemical formula (Fe,Mg)2SiO4 is a suitable mineral for CO2 sequestration; additionally due to its high Magnesium oxide (MgO) content, it may be a sustainable material for soil stabilization."

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26.11.2014

# Media

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BBC News: Geo-engineering: Climate fixes 'could harm billions'

"Schemes to tackle climate change could prove disastrous for billions of people, but might be required for the good of the planet, scientists say."

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28.07.2014

# Media

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WGC Blog: The Relevance of Ethics for Geoengineering Research

"The Relevance of Ethics for Geoengineering Research – Guest Post – Toby Svoboda, Fairfield University [...] But we should not ignore the ethical issues bound up with the justification and conduct of geoengineering research."

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28.07.2014

# Media

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The Engineer: Your questions answered: geoengineering

Discussion including Stephen Salter, Richard Darton, Andrew Charlton-Perez. "Our expert panel discusses the feasibility of using geoengineering techniques to counteract climate change"

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