Cape Town is just a few months away from being the first major city to shut off its taps in the history of the modern world. Day Zero - the day Capetonians in South Africa will need to line up at water distribution points for daily water rations - is currently scheduled for July 9th. Reporter Kristen van Schie tells Sean Rameswaram how the three-year drought is drastically changing life for millions of Capetonians. Plus three tips to ward off a water crisis in your own city from hydrologist Peter Gleick.