Biosphere 2 Experiment
Participants in the Biosphere 2 experiment experienced dangerously low oxygen levels and elevated CO2 over approximately two years. The gas-scavenging behavior of concrete observed in Biosphere 2 was long overlooked and served as the found…
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Participants in the Biosphere 2 experiment experienced dangerously low oxygen levels and elevated CO2 over approximately two years. The gas-scavenging behavior of concrete observed in Biosphere 2 was long overlooked and served as the foundational chemical mechanism for the carbon-negative concrete formulation. The oxygen depletion in Biosphere 2 was caused by concrete in the floor and structure absorbing oxygen from the enclosed atmosphere.