Can green sand help to clean up our carbon?
On an undisclosed Caribbean island, researchers are poised to test whether green sand could help to clean up our atmospheric mess. Project Vesta aims to sequester carbon by speeding up the natural weathering process of a mineral called olivine. The olivine will be ground up into sand and spread on the beach, where — in theory — the wave action will accelerate the sequestration process. The project hopes to show whether ‘enhanced mineral weathering’ can be done in a cost-effective way that’s safe for the marine environment (and acceptable to people who might not fancy the idea of a green-sand beach).
Technology Review | 13 min read
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