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Has anybody watched this tonight on BBC4? It was the first episode and it was shocking. It's on again next Weds at 9pm.
It's not just about the water but where it comes from, as in rivers and rain and how humanity has affected things so much rivers flow and rainfall have changed. For example, the river Tiete in Sao Paolo literally stopped flowing for a while in 2015 and the people rioted as they ran out of water and erratic rainfall has had big effects