Thepod is a temporary geodesic housing structure made out of folded and stiffened fibreboard.
When the hollow triangular panels are assembled to form a complete structure, the principle of convection goes to work, and as the exterior structural surface heats up, air inside the hollow panels will slowly expand and rise. As the warmer air exits the top vents, cooler air is drawn into vents located along the ground facing edge of the structure effectively washing away the heat before it can be transferred to the interior of the structure.
(Thanks, Eli the Bearded!)