Scientists have discovered that peridotite, a rock found on the surface of the planet in some areas and which is occurs hugely underground, can naturally store CO2 permanently.
CO2 could be piped underground where peridotite would turn it into limestone or marble.
The researchers say that the discovery of previously unknown high rates of reaction underground means CO2 could be sent there artificially, at far less expense. “This method would afford a low-cost, safe and permanent method to capture and store atmospheric CO2”