Some work has been done on mineralising extracted CO2, ending-up with a stable form that doesn't return to the atmosphere. For example: "... use electrolysis or

Some work has been done on mineralising extracted CO2, ending-up with a stable form that doesn't return to the atmosphere. For example: "... use electrolysis or heat to split common salt, sodium chloride, into hydrochloric acid and caustic soda, then react the soda with the carbon dioxide to make bicarbonate." [1] The obvious question is whether this can be done in an energy neutral way. Either way its just a fix: we need to stop putting the CO2 into the atmosphere in the first place. [1] https://www.theengineer.co.uk/issues/25-april-2011/solid-as-a-rock-mineralising-carbon-dioxide/ https://www.theengineer.co.uk/issues/25-april-2011/solid-as-...