"Climeworks has also opened a second facility in Iceland that can capture 50 tonnes of CO2 a year and bury it in underground basalt formations. " Taking Oxygen

"Climeworks has also opened a second facility in Iceland that can capture 50 tonnes of CO2 a year and bury it in underground basalt formations. " Taking Oxygen from our atmosphere (the gas we need to breathe) and pump it underground after we've combined it with Carbon seems like an atrociously bad idea. Taking CO2 out is only half the battle. We're going to need that oxygen. Pumping it into greenhouses seems better, but not very cost effective: You need to build these machines, then build the greenhouses, then transport tonnes of CO2 to the greenhouses... Seems much more cost effective to build windmills, solar arrays and the like!