Rock on: How crushed stone could help fight climate change

AI Summary

Enhanced Rock Weathering (ERW) is a new technique being explored to combat climate change by accelerating the natural weathering process of rocks. Crushed basalt rock is spread on farmland to capture and store carbon dioxide. While promising, the effectiveness of ERW is still under investigation, with field trials showing lower carbon removal rates than initial estimates. Factors like rock type, climate, and soil type influence the process, and accurately measuring captured carbon remains a challenge.