Across the world, scientists use a variety of techniques to analyse and treat water to ensure it’s safe for us to drink. Julia Robinson talks to some of the people involved
Water is essential for human life. And while having reliable access to safe drinking water is something many of us take for granted, countless others across the world do not have this luxury. According to figures from the World Health Organization, 296 million people across the world are drinking water from unprotected wells and springs, and a further 115 million are collecting untreated surface water from lakes, ponds, rivers and streams.