Microsoft to Purchase CO2 Removal Credits from InPlanet

Microsoft has signed a carbon removal deal with Brazilian enhanced rock weathering (ERW) firm InPlanet for more than 28,500 tons of carbon credits. The removals will be generated through InPlanet’s ERW program in Brazil, which is the largest in the country, spanning more than 12,000 hectares of farmland.

“As part of this agreement with Microsoft, we can deepen our scientific research and further validate ERW under real-world conditions,” said Felix Harteneck, founder and CEO of InPlanet.

“Our team is monitoring every aspect, from soil chemistry to local water systems, to ensure each tonne of CO₂ is rigorously accounted for. The insights we gain from these deployments will improve our measurement and verification methods, setting an even higher bar for transparency in carbon removal. Ultimately, this is about building trust: we want every stakeholder to know that each credit we deliver is grounded in solid science and delivers permanent climate benefits.”