Grave-digging I know, but there is something to be said for good ventilation, and AC only really functions well (affordably) in a closed space. If you pay power bills then you will know what I mean. Anyway I also believe that sitting for long periods in air-conditioned spaces impairs your body's acclimatisation to the outside world. You ultimately suffer more when outside, and have worse BO too.
That is not to say there is no room in our world for AC, just I think people shouldn't disregard fans as unnecessary