Climeworks uses geothermal energy, a renewable energy, and waste heat to capture CO₂ directly from the air, concentrate it, and sequester it permanently in basalt rock using the Carbfix method. Climeworks plans to remove 12 kg of CO₂ on behalf of La Maison Blanche.
Charm Industrial has designed an innovative carbon dioxide removal process based on transforming biomass into bio-oil, which is then injected into geological layers for permanent storage. Since 2021, Charm has removed 19 kg of CO₂ on behalf of La Maison Blanche.