How much do you know about water? It’s all around us and used in pretty much all human activities. This might be as simple as washing our face or as complex as being used in the development of semiconductors for our electronic devices. But how many of us really know the impact of our behaviours on water? What sort of water pollution do we generate? What challenges are we facing in trying to provide all enough clean water for human activity? IMSE’s latest guest blogger, Bioengineering student Naveesha Karunanayaka, explores the topic.