“Wash your hands when you get home, and keep scrubbing them for at least 20 seconds” – that is good advice, with or without the coronavirus. However, there is one big problem: more than 40 per cent of the world’s population lives in regions where water is scarce and is increasingly becoming more so.
According to the United Nations, over two billion people are living with the risk of reduced access to freshwater resources, and by 2050, at least one in four people is likely to live in a country affected by chronic or recurring shortages of fresh