Through river alkalinity enhancement (RAE), site-specific amounts of safe alkalinity material is added to rivers where it dissolves rapidly, converting the CO2 in the rivers into stable, beneficial bicarbonate as well as minerals like calcium and magnesium. Our process absorbs CO₂ from both the soil and atmosphere and re-establishes key ecological building blocks. The rivers naturally transport the bicarbonate to the ocean, and the permanence of the CDR is currently estimated to be in the 10,000s of years. The drawdown of carbon can be directly measured in the river in real time.
Isometric maintains a buffer pool of Credits for CarbonRun, to help protect against uncertainty in storage, and the possibility of reversals.Learn more about buffer pools
CarbonRun buffer pool
Available buffer pool1.534
Total allocated to date1.534
Used for reversals
0
Contributing projects1
76.69
Kvina River CDR Project
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.
