#74

Carbon Dioxide and the New Stone Age

Turning pollution into stone.

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In June, researchers working in Iceland announced they had turned carbon dioxide into stone. The team captured carbon dioxide emitted by a geothermal plant and injected it, along with water, into basalt rock. The gas mineralized into calcium carbonate, the main component of limestone. This transformation from gas to solid avoids the pitfalls of other sequestration projects, where carbon dioxide can leak into the atmosphere or groundwater. The project, called CarbFix, won’t act as a glob...
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