Water security is going to be one of the most pressing issues as the world faces the challenge of climate change. If average global temperatures rise by only a few degrees most of the world's glaciers will all but disappear, leading to floods and severe water shortages for millions of people. “Hot Cities” goes to Lima in Peru, one of the driest cities in the world, which relies heavily on the water from three rivers fed by glacial melt.
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Ready to Watch Hot Cities, Season 1, Episode 4?