Sucking CO2 Direcrly out if the air

Imagine 1 million particles of "air." The vast majority of these particles are nitrogen and, to a lesser extent, oxygen. Only about 412 particles are carbon dioxide, the heat-trapping greenhouse gas. This is a simplistic view of air, but it helps describe the complex task a DAC machine has to carry out -- taking in millions and millions of particles of air and sifting through them to grab carbon dioxide. To do so, DAC facilities use a series of huge fans to suck in ambient air and push it through a filter laced with chemicals that carbon dioxide reacts with and sticks to. Think of it as a specialized kind of flypaper. The CO2 gets trapped, while the other components of air pass right through.

Once Orca removes CO2 from the air, a nearby facility, run by Icelandic company Carbfix, injects it into this basalt layer. Within two years, the CO2 turns to stone and can be locked away for millennia. It's important to note here that DAC is different from other carbon capture technologies, often referred to under the umbrella of "carbon capture, utilization and storage," or CCUS. These technologies have been developed and touted by fossil fuel industries as a way to try to capture carbon dioxide during burning of oil and gas -- that's a whole other issue covered very well by the Australian Broadcasting Corporation. Sometimes, DAC has been tarred with the same brush.



Credita:
https://www.cnet.com/news/machines-that-suck-co2-out-of-the-air-promise-to-reverse-emissions-will-they-work/