It sounds too good to be true — spread some rocks on a beach and the ocean will do the work to remove carbon dioxide from the air, reversing global warming. But that’s a very simplified explanation of what Project Vesta hopes to accomplish. The idea is to accelerate a natural process. When rain falls on volcanic rocks, it weathers them down, then flows into the ocean. There, oceans further break down the rocks. Carbon dioxide removed from the air becomes bicarbonate, which helps grow the shells of marine organisms and is stored in limestone on the ocean floor. Project Vesta wants to speed up this process by grinding up olivine — a common, gray-green silicate that weathers quickly — and spreading it on beaches and in shallow shelf seas around the world. It has worked in a lab, but will it work in the real world? We’re about to find out, as Project Vesta is now preparing a pilot beach in the Caribbean. Origins of Project Vesta Project Vesta has rounded up an international crew of scientists, environmentalists, futurists and financial experts since its founding on Earth Day 2019. The not-for-profit organization sprang from a think tank called […]

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