Enhanced Weathering Has Overlooked Near-Term Scale

Microsoft has contracted with InPlanet to remove 28,500 tonnes of CO₂ via enhanced rock weathering (ERW) in Brazil between 2026 and 2028, with all credits to be issued and listed through Isometric's verification framework. Notably, Isometric already issued the world's first independently verified ERW credits — 235.53 tonnes — to InPlanet in January 2026, delivered to Adyen via ClimeFi. The verification milestone matters more than the tonnage: ERW has long been held back by MRV uncertainty, and a tier-1 registry issuing credits against field data signals the methodology is hardening. InPlanet operates the largest ERW program in Brazil at >12,000 hectares. Brazil's combination of tropical rainfall, basalt abundance, and an 84% renewable-powered grid gives it structural cost and lifecycle-emission advantages for ERW that temperate-zone programs can't match. This is a concrete step toward ERW becoming a purchasable, auditable asset class rather than a research project. Source