Towers Built of Shipping Containers
The core of both towers will be made with containers in a vertical position, allowing elevator units to be housed in one of each of the containers in an upright position. From the renders it appears the shipping containers used to build these structures will not be modified a lot, apart from cutting out windows and doors. The shipping containers will simply be stacked in a way that grants the towers the necessary stability.
The structure will also have a number of vertical gardens placed along the height of the building. These gardens will work to separate the apartment units and aid in the dissipation of heat in the summer. The facade will also be colored according to the orientation of the buildings and in relation to the sun, namely warm colors on the south facing side, and cold colors on the north facing side. This is also meant to offset the heat buildup in the units. Still, I am not convinced that in a hot climate like this, comfortable interior temperatures can be reached without some air conditioning.