It is well known that the ozone layer protects the Earth and its life from the harmful ultraviolet (UV) radiation of the sun. It has also been discovered that this layer was being depleted to the extent that holes were appearing in it by several substances (such as CFCs) which have since been banned. Despite this action recent studies have shown that the ozone layer is still being depleted at a rapid rate and that holes are now beginning to appear over areas which are quite densely populated. Atmospheric Ozone Variability examines the potential problems that depletion of ozone causes in relation to climate change, human health and the ecosystem. It also examines the ways in which ozone is formed and depleted as being fundamental to the debate.