The world’s largest direct air capture demonstration plant, Climeworks’ Orca in Iceland (see photo above), removes 4,000 tonnes of carbon dioxide from the atmosphere over the course of a year. By current emissions levels, “that takes us back three seconds … that’s the atmosphere you had three seconds ago if you had 4,000 tonnes less CO2,” said Ho.
(3 seconds CO2 removal step back in time every year. this is 3/31,536,000 or 9.5 x 10 power -8 which is tiny)