View original ↗on canarymedia.com
deal · 1 April 2023
Microsoft ↔ Running Tide
Microsoft: a firm purchase of 12,000 t of ocean alkalinity enhancement removal from Running Tide.
BuyerMicrosoft
SupplierRunning Tide
Tonnes12,000 t
Capture pathwayOcean alkalinity enhancement
Storage mediumocean-dissolved
Commitment typefirm
Deal structureofftake
Source pathway descriptionocean alkalinity enhancement and biomass sinking
Storage descriptionsequestration in the ocean; wood chips coated with lime-kiln dust sunk to seafloor
Project locationNorth Atlantic, off the coast of Iceland
NotesContract signed April 2023. Running Tide pivoted from original kelp-growing plan to sinking wood chips coated with lime-kiln dust. Company announced shutdown in June 2024. Earlier carbon-removal purchases also made by Stripe and the Chan Zuckerberg Initiative (amounts not specified in this source).
Durability defaultedtrue
Previous durabilitydurable-1000y
Previous durability basispathway-default
Durability notePathway default removed; duration requires source evidence
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