I admittedly have an extensive mod list (mostly razi protocol things) which could be causing this, but I wanted to check if its just the mod itself. Cerys seems to have pollution enabled on the planet, despite the fact that without enemies the pollution doesnt do anything gameplay wise. Meanwhile, its technically got a UPS cost to be doing pollution calculations, presumably inflating the map size based on how many chunks my cloud explores into the space around cerys, and its making my beautiful moon water all nasty and green. How can there be pollution on a moon with no atmosphere?