Scoping catalogue of terrestrial enhanced weathering field deployment programs (Version 1.1) [Dataset and software].

As rock dissolves, it captures carbon dioxide and moves it as dissolved material through soils and rivers toward the ocean, where it can remain for thousands of years. Farmers may also benefit from lower soil acidity and improved released nutrients.

The challenge is proving how much carbon is removed. Because the final stored carbon cannot be measured directly at project scale, companies estimate removal by combining soil and water measurements with models. Methods differ, and the underlying measurements are rarely shared in forms others can check, so estimates remain hard to compare.