Abstract: An example system for cooling a data center includes a container enclosure for housing server racks. An air intake collects ambient air. The system includes a cooling ladder base, a cooling ladder wing, and a mixing chamber. A first conduit connects the air intake with the cooling ladder wing. A second conduit connects the cooling ladder wing with the cooling ladder base. An intake tunnel connects the cooling ladder base to the mixing chamber. Underground cooling ladders carry the ambient air downward into the earth through cooling ladder rungs in the cooling ladder wing such that the ambient air becomes geothermally cooled air. The geothermally cooled air is provided through the at least one intake tunnel to the mixing chamber for release into the container enclosure for the data center. A chimney vents hot air exhaust outside of the data center.