They ended up growing and eating so much sweet potatoes that they turned orange after a while. They had to pump oxygen into the biosphere 2 This is a fantastic

They ended up growing and eating so much sweet potatoes that they turned orange after a while. They had to pump oxygen into the biosphere 2 This is a fantastic read https://dartmouthalumnimagazine.com/articles/biosphere-2-what-really-happened https://dartmouthalumnimagazine.com/articles/biosphere-2-wha... [..] Microbes in our organically enriched soils had produced carbon dioxide at a greater rate than our young plants could produce oxygen via photosynthesis. We discovered that most of the missing oxygen was converted to CO2 and had been absorbed by the unsealed concrete in our habitat.[..]