Olivine-rich rocks could be used to store CO2 and source key metals Marieke Peche/Getty Images
Injecting carbon dioxide into rocks deep underground can turn the planet-warming gas into mineral form, permanently keeping it out of the atmosphere. Now, researchers say it may be possible to use the same process to simultaneously extract key metals used in clean electricity technology.
鈥淏y doing this surgical mining and doing things deep down-hole, we鈥檙e able to keep what we don鈥檛 want down there, and bring up the stuff we want,鈥 says at Pacific Northwest National Laboratory (PNNL) in Washington state.…