Den här beskrivs i officiella novellering för Episod 1: Phantom Menace.
The impression was not misleading. The days in which Coruscant could be viewed in any sort of natural state were dead and gone. The capital city had expanded over the centuries, building by building, until it wrapped the entire planet. Forests, mountains, bodies of water, and natural formations had been covered over. The atmosphere was filtered through oxygen regulators and purified by scrubbers, and water was gathered and stored in massive artificial aquifers. Native animals, birds, plants, and fish could be found in the museums or the climate-controlled indoor preserves. As Anakin Skywalker could clearly see from the viewport of Queen Amidala’s slowly descending transport, Coruscant had become a planet of skyscrapers, their gleaming metal towers stretching skyward in a forest of spear points, an army of frozen giants blanketing the horizon in every direction.