Total [CII] spectrum (yellow histogram) with CO(1−0) from different regions overlaid in blue. In both panels, the CO(1−0) was scaled up in flux by a factor of 650 for easy comparison with [CII]. Left: CO(1−0) emission on scales of 17−70 kpc in the CGM around the Spiderweb galaxy. The CO(1−0) spectrum was made from low-resolution ATCA data with the central emission subtracted (see Emonts et al. 2018, for details). Right: CO(1−0) emission in the inner ∼6 kpc of the radio galaxy, from high-resolution VLA data (Emonts et al. 2016). The CO(1−0) emission on ∼6−17 kpc scales around the AGN is not captured reliably in this figure due to the difference in resolution between the ATCA and VLA data.