Pollution of our atmosphere affects every aspect of our environment, at every scale, from individuals to entire societies, from the local to the global, and on all timescales from seconds to decades. Major advances have taken place over the last decade not only in relation to the scientific understanding of pollution in the atmosphere, but also in the areas such as environmental assessment. At the same time, public awareness of atmospheric pollution has increased, especially in relation to traffic pollution in our cities, the depletion of the ozone layer, and global warming. This Atlas is the first to provide a detailed global overview of these critical issues. The Atlas clearly illustrates and describes: the distribution of pollution from local to global spatial scales; the historical and future trends of the major pollutants; the impacts on the environment.