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Researchers Develop Technology that Turns CO2 into Stone

CO2 Symbol
Monday, June 13, 2016

Researchers in Iceland have made a significant breakthrough in the battle against climate change by developing a process that can turn carbon dioxide into stone. The Carbfix project, led by the University of Southampton in the U.K., developed an economal way to bury CO2 and turn it into stone, where it can no longer contribute to global warming. The research involved pumping CO2 into volcanic rock, while expediting processes where basalts react with the gas to create carbonate minerals. This process of turning CO2 into a solid took only 2 years, as compared to the hundreds or even thousands of years initally predicted. This method has advantages over current carbon capture and storage (CCS) methods that store CO2 as a gas, which is both costly and runs the risk of leakage. The new process does require 25 tons of water for each ton of CO2 buried, but the researchers anticipate that seawater can be used for this purpose.  

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