What if cropdusting could cool down the climate? What about rockdusting? Turns out sprinkling rock dust on fields may enhance a process called rock weathering, capable of trapping and removing atmospheric carbon. While the method would be low-cost, there is little data on how much carbon can truly be offset through the process.

Drop it like it’s hot

Rock weathering is a natural carbon removal process that occurs when “rain falls through the atmosphere” and “combines with CO2 to form carbonic acid,” said Undo , a London -based business dedicated to carbon removal. When the acid falls on the landscape, the “CO2 interacts with rocks and soil, mineralizes and is safely stored in solid carbonate form.” Scientists want to supercharge this process in a system called enhanced rock weatheri

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