View original ↗on inplanet.earth
deal · 17 December 2025
Microsoft ↔ InPlanet
Microsoft: a firm purchase of 28,500 t of enhanced rock weathering (agricultural) removal from InPlanet.
BuyerMicrosoft
SupplierInPlanet
Tonnes28,500 t
Capture pathwayEnhanced rock weathering (agricultural)
Storage mediumocean-dissolved
Commitment typefirm
Deal structureofftake
Source pathway descriptionEnhanced Rock Weathering (ERW) — the application of finely crushed silicate rock to soils, capturing atmospheric CO₂ while improving soil health and supporting long-term ecosystem resilience
Storage descriptionPermanent sequestration through natural weathering processes
Delivery window2026-2028
Project locationBrazil
VerificationIsometric (Enhanced Weathering Protocol); credits listed on Isometric Registry; data shared through Cascade Climate's ERW Data Quarry
NotesAgreement signed December 17, 2025. All credits issued under Isometric's rigorous Enhanced Weathering Protocol and publicly listed on Isometric Registry. InPlanet operates the largest ERW program in Brazil, measured by total farmland treated, with more than 12,000 hectares. Credits will receive independent verification; InPlanet previously delivered world's first independently verified ERW credits
Durability defaultedtrue
Previous durabilitydurable-1000y
Previous durability basispathway-default
Durability notePathway default removed; duration requires source evidence
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