First you have to trap very significant amounts of the CO2, which I understand is not an inexpensive operation.
GET YOUR CO2 HERE! SUCH A DEAL DOWN IN DECATUR!
From the capture and storage facilities like this one near Decatur Illinois:
https://www.adm.com/en-us/news/news-releases/2022/7/adm-carbon-capture-and-storage-project-earns-top-honors-from-environment—energy-leader/