If you thought deserts are just dry and barren places, a host of projects might make you think otherwise. For instance, travelers to Egypt might rub their eyes in wonder when they see dense rows of trees rising up in the searing heat of the desert. Our reporter Florian Nusch took a closer look at these desert forests and found out how recycled water is used to create the path breaking project. Perforated plastic pipes ensure that the water reaches the trees in the right doses at the right time. In our background article, author Franziska Badenschier traces the story of the so-called tropical irrigation system. What's more, she shows that deserts are perfectly suited to grow fruits, vegetables and cereals. Who would have thought?