Experts say the capital of Yemen is quickly running out of water. And the water tables aren't dropping simply because of the expected uses: the water crisis in Sana'a is a result in large part of its unquenchable thirst for a narcotic plant called qat.

Qat farms are siphoning off a large portion of Sana'a's water supply. Coupled with Sana'a's exploding population, the city is emptying out its water basin at a staggering rate.

Dale Gavlak reports from Sana'a.

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