ClimeRock

ClimeRock is a French company applying Enhanced Rock Weathering (ERW), a carbon dioxide removal method in which finely ground silicate rocks such as basalt are spread on agricultural soils. The rock reacts with atmospheric CO2 to form stable bicarbonates, which the company describes as storing carbon durably, ultimately as dissolved bicarbonate in the oceans, and as counteracting ocean acidification. Alongside carbon removal, the company positions ERW as a soil amendment that balances soil acidity, releases nutrients, and supports crop yields, addressing soil degradation in addition to climate change.

The company's approach centers on sourcing silicate rock that is already available near farms, including fine silicate material that is an abundant mining and industrial by-product, and matching it to farmers' soil correction needs. ClimeRock states that it launched the first ERW field trials/pilots in France, works with research institutions, and maintains R&D as a core activity. It was founded in 2023 and is headquartered in Colombes, France, with a small team; Techstars lists the company across AgTech, carbon capture, cleantech, environmental engineering, recycling, and sustainability categories.