View original ↗on theguardian.com
deal · 1 October 2024
Microsoft ↔ Ebb Carbon
Microsoft: a firm purchase of 350,000 t of ocean alkalinity enhancement removal from Ebb Carbon.
BuyerMicrosoft
SupplierEbb Carbon
Tonnes350,000 t
Capture pathwayOcean alkalinity enhancement
Storage mediumocean-dissolved
Commitment typefirm
Deal structureofftake
Source pathway descriptionelectrochemical ocean alkalinity enhancement (OAE) to mimic the natural process of ocean alkalisation by adding huge amounts of alkaline materials to ocean waters
Project locationWashington state, US (Port Angeles and Sequim Bay in the Salish Sea)
NotesDescribed as 'the world's largest marine carbon removal deal to date'. Agreement is multimillion-dollar but exact amount not disclosed. Current capacity less than 100 tons/year; new plant in Port Angeles targeted for summer 2025 will remove 1,000 tons/year.
Durability defaultedtrue
Tonnes notevolume of up to 350,000 t stated in later coverage of this agreement
Tonnes sourcehttps://insideclimatenews.org/news/10082025/ocean-carbon-removal-climate-change
Previous durabilitydurable-1000y
Previous durability basispathway-default
Durability notePathway default removed; duration requires source evidence
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