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Spotted: Over the last two centuries, the atmospheric concentration of CO2 has risen by 48 per cent. That’s a quadrillion molecules of extra carbon dioxide per cubic centimetre of atmosphere. While innovators are finding more and more ways to capture this excess carbon, storage solutions have yet to match this success. In an effort to bridge this gap, New York-based startup Cella Mineral Storage has created a technology that turns CO2 into mineralised rock.

With help from the world’s leading experts on mineralisation, the company’s technology accelerates the Earth’s natural geological process for transforming carbon dioxide into minerals. To achieve this, the company injects captured atmospheric CO2 into volcanic rocks, where mineralisation permanently locks it away. As Claire Nelson, the co-founder and chief science officer of Cella Mineral Storage, explains: “you’re actually growing new minerals underground that turn CO2 into a solid rock.”

Recently, Cella partnered with a Kenyan geothermal power company to try and run the process on renewable power. Once a new 140-megawatt geothermal power plant is installed in northern Kenya, the startup will then run a new pilot project that injects carbon over 1,300 feet underground.

Cella Mineral Storage has reportedly been given funding by Frontier, an advanced market commitment backed by tech giants like Stripe, Alphabet, and Shopify, which invests in global carbon removal.

Springwise has previously spotted other carbon storage innovations, including a scheme that pumps carbon into deep-sea reservoirs, and giant algae-filled ponds.

Written By: Georgia King