Lack of underground residence in Cooper Pedy

Are you asking about the shortcomings of Cooper Petty's underground residence? The disadvantage is that it is located underground and the ventilation effect is poor. The reason why Cooper Pedy is built underground is because the temperature here, the surface temperature is as high as 5 degrees Celsius, and human beings cannot survive for a long time. Cooper Petty, Australia is the only underground town in the world.