Kingston-based carbon dioxide removal developer, UNDO, has announced a new partnership with Microsoft to advance enhanced rock weathering (ERW) carbon removal techniques. The agreement aims to remove 15,000 tonnes of CO₂ from the atmosphere, while funding critical scientific research in the field, supporting Microsoft’s pledge to be carbon-negative by 2030.
This builds on a previous contract from 2023, where UNDO agreed to remove 5,000 tonnes of CO₂ for Microsoft. ERW accelerates the natural process where rainwater interacts with silicate rocks, storing CO₂ as solid carbon for hundreds of thousands of years. UNDO applies this by spreading crushed silicate rock over agricultural land, enhancing the chemical reaction and speeding up carbon capture.
Jim Mann, UNDO’s CEO and Founder, highlighted the significance of the deal: “This agreement with Microsoft signals the market potential for enhanced rock weathering and UNDO’s ability to deliver valuable scientific research for this critical climate solution.”
In partnership with Canadian Wollastonite, UNDO will spread 25,000 tonnes of crushed rock across 5,000 hectares of farmland in Ontario, permanently sequestering CO₂ while improving soil health for local farmers. The project will also establish field trials and monitoring sites, including collaborations with Queen’s University and the University of Guelph.
Canada’s growing carbon removal sector aligns with the government’s 2050 net-zero emissions goal. With this latest collaboration, UNDO plans to scale its operations across Ontario and Québec, aiming to facilitate billions of tonnes of carbon removal in the future.