India, Feb. 8 -- Is Tehran moving towards "zero-day"? I am not suggesting a possible US attack, but pointing to the unprecedented water stress that has gripped Iran's capital city. Iranian president Masoud Pezeshkian recently declared that shifting the country's capital was no longer an option but a compulsion.

The tragedy has been unfolding for quite some time. Snow in the Alborz mountain ranges is the source of Tehran's water supply. However, the centuries-old system is facing the threat of global warming. The quantum of snowfall has steadily reduced, leading to a decline in water supply. Meanwhile, the metropolis has expanded. People are indiscriminately exploiting groundwater, leading to land subsidence in many densely populated area...