While probably not as applicable on Earth, the ISS CO2 scrubbers use a chemical substrate that is then exposed to space where the CO2 is sent off. https://www.

While probably not as applicable on Earth, the ISS CO2 scrubbers use a chemical substrate that is then exposed to space where the CO2 is sent off. https://www.eni.com/en-IT/scientific-research/space-free-co2.html https://www.eni.com/en-IT/scientific-research/space-free-co2...