With the gradual intensification of the El Nino phenomenon in recent months, the signs of its influence on the world's climate have become more prominent.
Countries such as Indonesia, India and the United States have faced droughts, floods and heat waves; Events that coincide with predictions about the intensification of extreme weather phenomena due to El Niño.
The World Meteorological Organization says the current El Niño, which is one of the strongest on record, will strengthen again and last until at least 2027.
Read about five examples of its effects on the BBC Farsi website: