Quantifying Potential Carbon Dioxide Removal via Enhanced Weathering Using Porewater from a Field Trial in Scotland

In partnership with a leading team of researchers, we are proud to share a newly published study in Frontiers in Climate that demonstrates measurable carbon dioxide removal (CDR) through enhanced rock weathering (ERW) in real-world field conditions.

The findings capture 1.5 years of field data from a grassland trial in Scotland, providing one of the most detailed ERW porewater datasets published to date.

The study provides critical evidence that ERW can deliver durable CDR in real-world conditions, even in cooler, temperate climates.

Key results from the research include:

 – Significant direct potential CO₂ removal of up to 0.53 tonnes per hectare after 18 months of weathering.
– When the mass of rock applied is taken into account, 4.2 kg of CO₂ per tonne of basalt applied per hectare was potentially removed during the study period.
– Direct comparison of real-world results against theoretical approximations, showing the need for robust, field-validated MRV approaches.
– Valuable insights into the importance of particle size, soil incorporation, and hydrological monitoring for future MRV development.

This paper is an essential resource for anyone interested in the future of carbon removal, from climate scientists and environmental practitioners to businesses investing in nature-based solutions.

It highlights how ERW, when rigorously monitored, can become a scalable, scientifically credible pathway to carbon dioxide removal at scale.

Download Quantifying Potential Carbon Dioxide Removal via Enhanced Weathering Using Porewater from a Field Trial in Scotland below to learn how UNDO is advancing real-world science for a more sustainable future.

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