Huge amounts of rock dust are being spread across farms to capture CO2

Companies around the world are spreading crushed rocks on farms to remove carbon dioxide from the atmosphere in a process called enhanced weathering, but the hard part is measuring how much is stored.

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All you need to remove a lot of carbon dioxide from the atmosphere is an open field and piles of crushed-up rock. That is the promise of what may become one of the primary ways to durably remove billions of tonnes of CO₂ from the atmosphere, helping the world reach net zero on time and avoid the most dangerous effects of climate change.