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Kvina River CDR Project — Isometric

ValidatedMarine1,000Y+

Kvina River CDR Project

CarbonRun

Project details

Credits issued

76.69

Verifier

350Solutions

Project code

XJ4Y

Approval date

20 Jan 2026

Protocol details

Protocol

River Alkalinity Enhancement

Version

v1.0

Summary Removal method Calculation overview Project documentation Credits Reversal risk

Summary

Kvina River CDR Project results in the drawdown and permanent storage of CO2 that would otherwise reside in the atmosphere. By adding finely crushed natural alkaline rock, the river’s pH, calcium, and total alkalinity are increased, strengthening ecosystem health and resilience in both the river and estuary. The alkaline material reacts with dissolved CO₂ to form stable bicarbonate ions, which increase the river’s dissolved inorganic carbon (DIC) load. As these bicarbonates flow to the ocean, they provide permanent, safe carbon storage for millennia while also improving water chemistry.

How carbon is being removed

Marine carbon dioxide removal (mCDR) leverages the ocean's natural capacity to absorb and store carbon for thousands of years. These pathways use the biogeochemical and physical properties of the ocean and other bodies of water to capture carbon dioxide from the atmosphere or to permanently store carbon already contained within them. Approaches to mCDR include Ocean Alkalinity Enhancement and Direct Ocean Capture and Storage.

Learn more

Calculation overview

Project documentation

Credits

Issued76.69

Retired13

Buffer pool1.534

Crediting period15 May 2025 to 15 May 2030

Issuances

Retirements

Reversal risk

The risk of reversal for this project has been assessed as Very low. This means that 2% of credits issued for this project are allocated to CarbonRun's buffer pool.

To date, this project has contributed 1.534 credits to the buffer pool which holds a total of 1.534 credits.

CarbonRun has no reversals to date.

Learn more about reversal risk