EghtesadOnline: Tehran is losing the battle against land subsidence, as the earth sinks in some plains of the province by about 30 centimeters every year, and conditions are more critical in Shahriar and Varamin counties in southwest and south, director of the Forecasting and Early Warning Office at the Iran Meteorological Organization said.

EghtesadOnline: The earth sinks in some plains in Tehran Province by about 0.5 to 1 millimeter every day, and conditions are more critical in Shahriar and Varamin counties in southwest and south Tehran, managing director of Tehran Regional Water Company said.