Here is technology which, I think, is less known than it should - https://sesinnovation.com/technology/carbon_capture/ https://sesinnovation.com/technology/carb

Here is technology which, I think, is less known than it should - https://sesinnovation.com/technology/carbon_capture/ https://sesinnovation.com/technology/carbon_capture/ . And yet I think freezing out CO2 out of air can be used even wider - re-processing air from atmosphere, instead of going only after exhausts.