New research gives precise look at underground CO2 abatement process

“Environmental scientists trying to mitigate the effects of CO2 have experimented with injecting it deep underground, where it becomes trapped. These trials have mainly taken place in sandstone aquifers, however, the injected CO2 primarily remains present as a bubble that can return to the surface if is there are fracture in the capping formation. A different approach using flows as injection sites—chiefly at the CarbFix site in Iceland and in Washington state—has yielded dramatic results. Metals in basalt have the ability to transform CO2 into a solid inert mineral in a matter of months. While the new method holds promise, the underground injections can be imprecise, difficult to track and measure.”