To me the main lack is why put these machines where the carbon is scarce vs abundant? Eg: My back yard has something like 411PPM [1] but a coal plan flue, i ass

To me the main lack is why put these machines where the carbon is scarce vs abundant? Eg: My back yard has something like 411PPM [1] but a coal plan flue, i assume, has a very much larger PPM. IMO it's analogous to solar panels in Canada where the sun is 1/2 the strength of other parts of the planet [2] [1]: https://www.co2.earth/ https://www.co2.earth/ [2]: https://en.wikipedia.org/wiki/Solar_irradiance#/media/File:Global_Map_of_Global_Horizontal_Radiation.png https://en.wikipedia.org/wiki/Solar_irradiance#/media/File:G...