It's hard to manage a water supply and economy in Tehran when your top minds are busy running proxy wars in Lebanon and Iraq and funding or supporting ones in Syria, Yemen, and Gaza [1, 2].
It's sad to such a great people subjugated by their government.
Dams blocking the inflow to Lake Urmia that almost dried up nowadays were built by the Shah, for example. Man-made environmental damage and corruption aren't new by any measure, as well as unstable water levels and shortages in arid zones. See e.g. Aral Sea which fluctuated in the range of dozens of meters over centuries before finally drying up, which was enough to establish and subsequently abandon multiple settlements on the lake bed during the Mongol Empire.
