World’s First Independently Verified Enhanced Weathering Credits

Isometric recently issued 235.53 carbon dioxide removal credits (credits) for InPlanet. These are the world’s first independently verified Enhanced Weathering (EW) credits and will be delivered to Adyen (having been secured by ClimeFi). This milestone sets a new standard for quality in carbon dioxide removal (CDR).

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These first verified EW credits are a turning point for scaling carbon dioxide removal (CDR). They raise the bar for quality by incorporating the latest scientific advances in the field, drawing on academic consensus and showing it is operationally feasible to perform rigorous monitoring, reporting, and verification (MRV) in EW. Incorporating academic rigor ensures confidence in the results.

In nature, carbon dioxide dissolved in water reacts with elements in rocks. This is known as a weathering reaction, and it forms a type of carbon that—when transported to oceans via rivers—is securely stored for thousands of years. EW accelerates this natural weathering reaction and removes carbon dioxide from the atmosphere by spreading crushed silicate rocks on farmland. This enhances the rate at which carbon dioxide can be stored securely in oceans.

EW has numerous advantages. It is low cost, has immense storage potential in oceans, and creates substantial co-benefits—including improved soil health, greater agricultural productivity, and job creation in rural communities. These benefits make EW a promising solution for carbon dioxide removal at scale.

These credits were certified ex-post (based on actual data, not forecasted activity) according to Isometric’s Enhanced Weathering Protocol. The level of MRV required by the protocol is unmatched in the market, with rigorous sampling, direct measurements from soil and porewater, and robust statistical analysis of control and treatment plots. Direct measurements are crucial as current EW models are still developing.

These credits correspond to InPlanet's deployment at the Serra da Mantiqueira project in Brazil. InPlanet is the first supplier to work with the unique conditions of Brazil’s tropical soils to conduct EW. Brazil’s rich basalt deposits and favorable agricultural conditions accelerate the sequestration process while ensuring sustainable sourcing and transport.

Isometric-verified data from InPlanet’s credits will also be anonymized and shared with Cascade Climate, a non-profit organization advancing scientific rigor in EW. Data will be shared with Cascade’s first-ever EW data sharing system, Data Quarry. This transparency supports researchers in scaling EW models and developing complementary solutions.

Buyers, suppliers, and policymakers can view the transparent data behind every EW credit on the Isometric Registry. The Registry provides a permanent audit trail for all credits issued by Isometric and makes all the underlying information behind every credit public so the data can be reviewed and scrutinized. This ensures accountability and trust for all stakeholders.

With scientific consensus and rigorous MRV at the core of these first EW credits, buyers, suppliers, and the public can be sure that every EW credit from Isometric equals one tonne of carbon dioxide durably removed from the atmosphere.