Ventilation for the entire building is heavily dependent on the six shafts that span the entire building. The natural ventilation and air circulation that occurs within these shafts supplements the air conditioning in the building for about 40% of the year. This in turn helps cut down energy consumption and carbon dioxide emissions. The voids formed by the shafts take advantage of the buildings aerodynamic form. The shafts use the large pressure differentialsgenerated across its facade to drive unique systems of natural ventilation. During the summer months, the shafts pull the warm air upward and help cool the building. During winter months, the building’s façade allows passive solar heating which reduces the need for the buildings heating system. Slits in the cladding allow fresh air to enter on each floor. Because each finger had its own climate control, energy consumption becomes need-based and thus more efficient because only certain parts of the building are being adjusted as opposed to the entire building. Before the air is discharged, it goes through