Well, you can, but it's not cheap. Either requires a lot of water for a swamp cooler, dry air and preferably a bit of wind or AC, which takes electricity. This

Well, you can, but it's not cheap. Either requires a lot of water for a swamp cooler, dry air and preferably a bit of wind or AC, which takes electricity. This also makes simple walking outside more of a problem, meaning you should adopt Arab or likewise fashion. Airy and reflects sunlight, prevents sun rays from striking most of the skin. You could make it shiny as well.