CarbonRun Generates World’s First River Alkalinity Enhancement Credits

CarbonRun generated the world’s first river alkalinity enhancement (RAE) carbon credits—76 tonnes—from its Kvina River Project in Norway, verified under Isometric’s new protocol. RAE dissolves crushed limestone into rivers to accelerate natural weathering, converting acidic CO₂ into stable bicarbonate/carbonate ions for ocean storage over millennia, addressing rivers’ annual release of up to 2.5 billion tonnes CO₂. Credits fulfill part of a $25.4 million offtake with Frontier buyers (Stripe, Shopify, McKinsey), targeting 55,442 tonnes removals by 2029, highlighting RAE’s low-cost, scalable potential.
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