Turning salt water into drinkable water is one of the ways to address droughts like the one to hit Cape Town in recent times. Leslie Petrick from the University of Cape Town explains the worrying health effects of desalinated water. Our Unscience is about how women on the contraceptive pill blink more. Later, Jemitias Chivavava and Benita Aspeling from UCT explain how dual desalination is used in industry for an interesting purpose.