Deserts occupy more area of the surface of our planet than any other type of landscape. They occur in all climatic zones including the hottest and coldest locations on Earth. This program examines deserts around the world, explaining why they exist and the different climate drivers at work in their formation and physical characteristics. It also covers human life in deserts and the various ways in which people adapt to living in a dry environment, and their impact on fragile desert ecosystems. It features a range of imagery of different deserts around the world, and uses graphics to clearly explain the natural processes at work.