Here is one that will put us all out of a job. Does anyone know of a company that designs self cooling buildings? If not, have you ever heard of such a thing?
There are certain aspects you can make in the layout/structure of the building to improve the thermal balance, we usually define this as "Passive Airconditioning". This means we do not need to actively put some air conditioner for airconditioning. These measures may include:
a) a very good U-factor
b) proper orientation of the building
c) use of water sprays and ponds near the building
d) manipulate the natural air flow around the building
e) good ventilation, etc