GAN-IUS... the GARDEN ("Gan" means Garden in Hebrew) HOUSE,
with WALLs made out of PLANTs within a GlassHouse style structure...
so INSIDE there is looots of O2 and
only as much CO2 as 100 years ago (200 - 280 and not 390 ppm).
Half CO2 - double easy living without any Hopsydol
Lets find out !