Review the Role and Effect of Climate Changes on the Climate Comfort of Yazd City by the use of EVANZ Modle

Urbanism and urban development along with rapid population increasing and development of industrial activities with uncontrolled use of fossil fuels have severely increased the pollutions which in short term, its effects is clear on different deceases and in long term speeds up some climatic changes and its environmental impacts, including change of desirable time periods from comfortable climate point of view. In this study, by the use of 50 year climate data (1957-2006) and relative humidity of Yazd station and also using EVANZ comfortable climate model, the favorable months for human physiology comfort in 5 periods of 10 years were determined and linear trend of these changes for the next 10 years which would be year 2016, has been predicted.The results of this study show that the warming tread in Yazd station is increasing and most of the months have a warming trend. So that it is expected in the near future, that cold months will have more comfortable situations for physiological welfare and comfortable of human and mutually in the warm months, heat tension will have a determined increase