The Swiss company Climeworks is building the world’s largest direct air capture (DAC) and storage facility for converting atmospheric CO 2 to rock in Iceland. Audi is partnering with the Zurich-based environmental start-up and promoting a future technology with the project. The facility will filter 4,000 metric tons of carbon dioxide from the air and mineralize it underground. Climeworks is removing 1,000 metric tons thereof from the atmosphere on behalf of Audi. With direct air capture technology, carbon dioxide is extracted from the ambient air and air free of CO 2 is returned to the atmosphere. Climeworks’ new facility in Iceland transports the CO 2 filtered out of the air below the Earth’s surface, where natural processes then mineralize it. The carbon dioxide is thus permanently removed from the atmosphere. The facility first draws in air and feeds it into the CO 2 collector, which contains a selective filter […]