Converting Waste Biomass into Durable Biochar for Carbon Removal

Carbo Culture heats waste biomass under high pressure without burning it, converting it into biochar that can safely store carbon in soil for over 1,000 years while co-producing renewable thermal energy. Its R3 facility near Helsinki, Finland, one of Europe's largest carbon-removal plants of its kind, is designed to remove roughly 3,000 tonnes of CO2 a year, and the company is now expanding into the Netherlands and the US. In March 2026 Carbo Culture was awarded a EUR 3.5 million Dutch government grant to build its next commercial-scale plant, ARC Middenmeer, in North Holland.