India's looming zero water day
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India's looming zero water day(Updated: )
Their water sources dangerously polluted and over-exploited, 21 major Indian cites could run out of groundwater in the coming years and become uninhabitable - among them India's Silicon Valley, Begaluru (or Bangalore), and its capital, Delhi. Learn more about India's "worst water crisis in its history" - and how one professor could have a possible solution. Watch the full Insight episode here.