Molecular gas scaling relations by environment. Top: molecular gas mass fraction vs. stellar mass by environment. Bottom: molecular gas depletion time vs. stellar mass by environment. The environment is classified as central (red), satellite (orange), and isolated (blue). The best fits from the Bayesian linear regression to the unbinned data are indicated by the blue-black-dashed (isolated), red-black-dotted (centrals), and orange-black-dash-dotted (satellites) lines respectively. The shaded areas indicate the 95% confidence bands. Open symbols with downward arrows denote upper limits. We note that for a few galaxies there was no environment information available from the group catalog.