PLANTS mosses that bind atmospheric CO2 and calcium into a form of bioconcrete called tufa.1 mosses that bind atmospheric CO2 and calcium into a form of bioconcrete called tufa.1 mosses that bind atmospheric CO2 and calcium into a form of bioconcrete called tufa.1 EXPLORE chrysalith the fab tree hub is a multispecies habitat grown from living trees the fab tree hub is a multispecies habitat grown from living trees the fab tree hub is a multispecies habitat grown from living trees EXPLORE the fab tree hab explore other collaborators