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Turning concrete into
‍a climate solution

We harness the power of enhanced weathering
‍to permanently remove carbon dioxide from the atmosphere

Our process sees surplus concrete in a whole new light, repurposing material from one industry to drive change in another

Join us as we reimagine agriculture’s role in addressing the climate crisis by working with farmers to permanently remove carbon dioxide from the atmosphere

Carbon Removal Illustration
The Challenge

Humans have put as much carbon dioxide into the atmosphere in the past thirty years as in the previous thirty thousand1

And current levels of carbon dioxide are higher than at any other point in the past three million years2.

The stakes could not be higher, and now it is increasingly clear that alongside economy-wide decarbonisation, excess carbon dioxide must also be removed from the atmosphere.

IPCC: ‘Carbon Dioxide Removal (CDR) is a necessary element to achieve net zero CO2 and GHG emissions both globally and nationally, counterbalancing residual emissions from hard-to-transition sectors. It is a key element in scenarios likely to limit warming to 2°C or lower by 2100’3

Want to help us to rise to the challenge?   →
Our Solution

Permanently remove excess carbon dioxide from the atmosphere through mineral weathering

We are the first enhanced weathering company to leverage the massive carbon removal potential of surplus concrete. Returned and demolished concrete represent a vast carbon removal resource. We take these abundant materials, process them to unlock their full sequestration potential, and work with farmers to apply them to their fields.

After our rigorous in-situ measurement process, we produce high-quality, permanent carbon removal credits to enable companies, governments and other organisations aligned with a 1.5°C pathway to achieve their climate objectives.

The merits of our approach

Safe

Our material has low concentrations of toxic heavy metals, making it perfectly safe to apply to agricultural land. We also meet the European Union’s criteria for liming materials.

Beneficial

Our material is beneficial to the fields and crops where it is applied. It can improve crop productivity through soil pH amendment, and enhance plants’ natural resistance to herbivory through the release of bioavailable silica4, all while providing vital nutrients to the soil.

Permanent

The carbon we remove from the atmosphere is safely locked away as dissolved bicarbonate for >80,000 years5. Meaning carbon removal and storage lasting millennia with very low risk of reversal.

Scalable

Concrete is the most abundant man-made material on earth - we never have to truck it far to get it to our farms. Our industry-leading robust measurement protocol will enable us to scale carbon removal volumes to climate-relevant levels with integrity.

Rapid

Our material’s chemistry allows it to weather much more quickly than other rocks and minerals - meaning permanent carbon removal that can be accurately measured in the field.

Our goal

Permanently remove excess carbon dioxide from the atmosphere by enhancing Earth’s natural weathering process

Humanity has perturbed a system that was stable for millions of years in under two centuries.

We want to reverse it by:
01

Leveraging the natural carbon removal properties of an abundant, surplus material to remove carbon dioxide permanently from the atmosphere

02

Working with scientists, farmers and other partners to reliably and safely undertake our work

03

Being transparent about the wins and challenges we see as we build out our solution

04

Treating the people we work with, wider society and the world we live in with respect and care

Our customers

Trusted carbon removal
for climate leaders

Sources

1 Kolbert, E. Civilization and Extinction. in The Climate Book (ed. Thunberg, G.) 11–15 (Penguin Random House UK, 2022).
2 Rae, J. W. B. et al. Atmospheric CO2 over the Past 66 Million Years from Marine Archives. Annu. Rev. Earth Planet. Sci. 49, 609–641 (2021).
3 Shukla, P. R. et al. Climate Change 2022: Mitigation of Climate Change. Contribution of Working Group III to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press (2022).
4 Frew, A., Weston, L. A., Reynolds, O. L. & Gurr, G. M. The role of silicon in plant biology: a paradigm shift in research approach. Ann. Bot. 121, 1265–1273 (2018).
5 Berner, R. A., Lasaga, A. C. & 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 (1983).
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