Environmental aesthetics is a relatively new sub-field of philosophical aesthetics. It arose within analytic aesthetics in the last third of the twentieth century. Prior to its emergence, aesthetics within the analytic tradition was largely concerned with philosophy of art. Environmental aesthetics originated as a reaction to this emphasis, pursuing instead the investigation of the aesthetic appreciation of natural environments. Since its early stages, the scope of environmental aesthetics has broadened to include not simply natural environments but also human and human-influenced ones. At the same time, the discipline has also come to include the examination of that which falls within such environments, giving rise to what is called the aesthetics of everyday life. This area involves the aesthetics of not only more common objects and environments, but also a range of everyday activities. Thus, early in the twenty-first century, environmental aesthetics embraced the study of the aesthetic significance of almost everything other than art. Together with this broader scope of environmental aesthetics, the twenty-first century has also given rise to renewed and more intense investigations of the relationship between environmental aesthetics and environmentalism as well as to several new interests and directions.