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 present a new preprint study that demonstrates measurable carbon dioxide removal (CDR) through enhanced rock weathering (ERW) in real-world field conditions.

The findings, submitted to Frontiers in Climate (preprint, in peer-review process), capture 1.5 years of field data from a grassland trial in Scotland, one of the most detailed ERW porewater datasets published to date.

The study provides critical evidence that ERW can deliver durable CDR beyond laboratory models, even in cooler, wetter climates.

Key results from the research include:

– Statistically 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, 42 kg of CO₂ per tonne of basalt applied per hectare was potentially removed.

– 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 gigatonne-scale carbon dioxide removal.

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.

Want to speak to someone about the findings? Reach out to us here, and we’ll be happy to help.