The average temperature in Iran has increased by two degrees compared to fifty years ago.
The average temperature over the past ten years in Iran is two degrees higher than the ten-year average five decades ago.
According to Ahad Vazifeh, head of the National Climate Center and Drought Crisis Management of Iran’s Meteorological Organization, each degree increase in temperature raises water evaporation by about seven percent. He mentioned that the trend of rainfall has also been decreasing in recent decades.