Okay, so let me use a metaphor: you have an outdoor plant, that needs to be watered only every once in a while, it adapted to the surroundings and the climate, and the rain itself is sufficient for it...
Your analogy doesn't work.
In percentage terms, atmospheric CO2 has increased ~0.014% since the pre-industrial age.
The soil being 0.014% more or less hydrated each year would make zero difference to the plant.
In percentage terms, atmospheric CO2 has increased ~0.014% since the pre-industrial age.
The soil being 0.014% more or less hydrated each year would make zero difference to the plant.
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