Effectively removing carbon dioxide from the atmosphere

Researchers analysed the use of the technology at eight locations worldwide: Chile, Greece, Jordan, Mexico, Spain, Iceland, Norway, and Switzerland. For each location, they calculated the overall greenhouse gas emissions over the entire life cycle of a plant.

With respect to efficiency, the results show an enormous range, from 9 to 97%, in terms of actual greenhouse-gas removal through the use of DACCS (Direct Air Carbon Capture and Storage).

“The technologies for CO2 capture are merely complementary to an overall decarbonisation strategy—that is, for the reduction of CO2 emissions—and cannot replace it” stresses Christian Bauer, a scientist at the Laboratory for Energy Systems Analysis and a co-author of the study.

Reducing carbon emissions not enough, expert warns

Chair of CCAG, Sir David King said: “I believe we have five years left to get on top of this global problem. We began talking seriously about climate change in 1992, yet we are now in a worse position with growing emissions and rising risks—watching greenhouse gases increase year after year.”

“But we’ve also let this problem get to the point where rapid emission reductions alone won’t be enough—we also need to develop ways to remove large amounts of carbon dioxide from the atmosphere and to preserve critical parts of the Earth system while we still can.”