3 ms·

Thanks for digging that up. Looks very interesting.

• pfdietz 4y ago
  This suggests using a greenhouse to absorb CO2 to keep the air you breath fresher. To absorb CO2 at night, plants using the CAM photosynthetic system could be used. These plants absorb CO2 at night for use during the day, storing the CO2 temporarily as malate. https://en.wikipedia.org/wiki/Crassulacean_acid_metabolism https://en.wikipedia.org/wiki/Crassulacean_acid_metabolism