Does anyone know if it would be possible (and feasible) to set up a closed
system CO2-O2 exchange system using only plants (and possibly some sort of
Use for underground, underwater, or space-based environments - something
that provides max exchange and foodstuffs to boot would be best, but
anything that would simply scrub the air would be sufficient.
What ratio of plants-to-humans would be necessary? How would the exchange
system be set up?