[troutman]

Geochemists Figure Out How to Turn Carbon Dioxide Emissions Into Stone

https://www.pbs.org/wgbh/nova/articl...yl_YM4KVQxtIGw

Researchers in Iceland have turned CO 2 into stone in just two short years—mere nanoseconds on a geological scale.

Many scientists speculated it would take decades—if not centuries or millennia—for gaseous carbon dioxide to solidify. But an international project known as CarbFix, a project based at the Hellishedi geothermal power plant outside of Reykjavik, Iceland, accelerated that timetable by injecting CO 2 -laden water into the basaltic rock beneath the power plant. There, the mixture of minerals in the rock reacted with the dissolved gas to form carbonate minerals, a solid and stable form of rock that will lock the carbon away for millennia. The results were announced this week in the journal Science.