Trees do much more than remove carbon from the air. Carbon removal machine could potentially create c02 deficit regions, creating hostile environments for trees.
We can't possibly build a machine for every function a tree does.
We can't possibly build a machine for every function a tree does.
If we could remove so much CO2 from the air that it prevented plants from growing (even if the effect were highly localized, which is pretty much a certainty), then we might actually have a shot at being able to remove CO2 in a reasonable amount of time. So this definitely sounds like a good problem to have. Personally I think that's pretty unlikely though.
As I understand it the air carrying the CO₂ is constantly moving and will not create any deficit regions?
Besides, with the large over concentration of carbon dioxide we have at the moment I think increasing temperatures have a higher chance of creating hostile environments.