They’re already straining to truck in enough water for survival now WITH some of the wells still working. If the ability to source water locally stops the people of Tehran will either need to move or die. With aquifers running dry from iran to Afghanistan they’ll have to migrate even further. I think we could see the entire region plunge further into chaos as the water crisis worsens.
That's just a Western pipe dream. The water crisis could trigger a revolt but the fundamentals for such revolt have to be there rather than the water crisis being the sole reason.
> people of Tehran will either need to move or die
No. I've lived (along a million other people) without water for many months during a hot summer episode. It was a major lifestyle degradation (and major doesn't even begin to describe it) but death was not a threat (though there was fear of disease spread due to possible degradation of sanitary conditions but that didn't happen either).