The Startup That Turns Industrial CO2 Into Rocks Underground

In this episode, Lucas and Luna explore carbon mineralization—a process that turns captured CO2 into solid rock within two years, not centuries. They focus on one Icelandic startup, Carbfix, which has injected over 100,000 tonnes of CO2 into basalt formations since 2014. Lucas explains the chemistry: when CO2 dissolves in water and meets reactive basalt, it forms carbonate minerals. The cost? Around $25 per tonne, compared to $100–600 for traditional carbon capture and storage. Luna asks about scalability, and Lucas points to parallel projects in the US Pacific Northwest and India. They discuss the carbon removal credit market—how companies like Microsoft and Shopify pre-purchase credits at $200–$600 per tonne to fund scale-up. The episode ends with a look at the math: to hit net-zero by 2050, we need to remove 10 gigatonnes per year; mineralization could handle 1–2 gigatonnes if basalt geology is accessible. A grounded look at a technology that's working today, not just in a lab. #CarbonMineralization #Carbfix #CarbonRemoval #DirectAirCapture #Basalt #Iceland #ClimateTech #CarbonCredits #NetZero #Microsoft #Shopify #CO2Storage #Geology #Startup #Sustainability #BusinessAndTechnology #FexingoBusiness #BusinessPodcast Keep every episode free: buymeacoffee.com/fexingo