Frontier Climate buyers ink deal to store CO2 as solid rock

44.01 has secured a commitment from Frontier Climate buyers to remove over 20,000 tons of CO2 through in-situ mineralization – a process that converts carbon dioxide into solid rock and stores it underground. This is a direct carbon removal transaction, not an offset scheme or nature-based solution.

In-situ mineralization works by injecting CO2 into suitable geological formations where it reacts with rock minerals and mineralises permanently. Unlike point-source capture or direct air capture (which pull CO2 from ambient air), this method targets CO2 at or near its source and converts it into a stable, immobile mineral form. The permanence is geological; the CO2 doesn't return to the atmosphere through conventional degradation.

Frontier Climate is a procurement initiative that aggregates corporate demand for carbon removal, allowing smaller buyers to access high-confidence removal projects at scale. The 44.01 deal signals growing market appetite for permanent storage methods beyond tree-planting or wetland restoration.

Critically: this transaction locks in a specific tonnage and methodology. It avoids the greenwashing vulnerability of carbon offset schemes that rely on additionality claims or baseline uncertainty. The risk lies in verification – whether independent auditors confirm the CO2 actually remained sequestered and the measurement methodology holds under scrutiny.

44.01's model relies on site-specific geology. Not all regions have suitable formations. Scale and cost remain open questions – whether this approach can move from proof-of-concept pilots to the gigaton-scale removal required for net-zero commitments is unresolved.