Overview of total atmospheric desiccation times of TRAPPIST-1 e (red), f (green) and g (purple) for a dry composition with 1–10 TO of initial H₂O, assuming an albedo of 0.75 (left) and 0 (right). Colored shaded regions denote the time, when the respective planet enters the habitable zone. Solid lines represent scenario with pure H₂O atmospheres, dash-dotted lines denote scenarios with added CO₂ scaled by 0.3x compared to the initial H₂O mass, and dotted lines show scenarios with added CO₂ equal to the initial water mass. The solid circles denote for a given H₂O-CO₂ mass fraction and planet the maximum initial water mass, for which total atmosphere desiccation occurs before the respective planet enters the habitable zone. Please note the change in y-axis scale between the plots.