Rock rich in calcium and/or magnesium, such as basalt, can be crushed and spread over the soil to capture CO₂. The rock can be mined for this purpose or obtained as a byproduct from other mines ...

From sugar plantations in Brazil to tea estates in India, crushed rock is being sprinkled across large stretches of farmland ...

Simply spreading crushed rock on fields—as farmers have done for centuries with lime—seems refreshingly low tech. “That’s part of its elegance,” Beerling says.

A growing number of scientists believe crushed basalt, a volcanic rock used in roads, could be used as a fertiliser, with trials showing it can improve soil and capture carbon.

Along with the crushed rock, some of the applications included compost or a combination of compost and biochar (in this case, burned pine and fir left over from local logging).

Rock On: How Crushed Stone Could Help Fight Climate Change ERW (Enhanced Rock Weathering) aims to speed up the natural capture and storage of carbon dioxide -- a planet-warming greenhouse gas.

Rock on: how crushed stone could help fight climate change. Sara HUSSEIN AFP; Jun 23, 2025 Jun 23, 2025 Updated Jun 24, 2025; Indian labourers pluck tea leaves at a plantation. STR; ...