Nature > Weather

The climate fix you've been waiting for: Rock dust?

28 days ago   |   By Grist

Scientists have been trying to figure out how to make use of one of nature's tricks for removing carbon dioxide from the atmosphere with rock and rain. As rain washes away tiny particles of rock, newly exposed minerals bind with carbon, transforming carbon dioxide into new chemicals. It's a simple combination of basic chemistry and erosion.
We can speed the process up by speeding up erosion, crushing tons and tons of rock and spreading it across the earth's surface, if we had the money to do it and a vast area where inhabitants don't mind trucks covering everything with a layer of rock...
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