Researchers on people-environment relationships are investigating what effect processes such as place appropriation and identification have on the environmental sustainability of spaces. A basic component of this complex relationship is the mental representation of environments, which may vary strikingly with the environmental scale involved. Such variation is crucial for the understanding of tensions that exist between local and global levels of human-environment interactions. The context of micro and macro environmental representation has some fundamental differences. At the micro-environmental level, mental representation analysis is usually accompanied, among other aspects, by a present time perspective and cognition of functional elements of the environment. On the other hand, the psychological representations of macro-environments are characterised by longer time periods and by mental coding of symbolic, cultural and ideological components of the environment. This inconsistency of elements and processes of the representations of environments scales is a major issue for the interdisciplinary nature of people-environment studies because it is directly related to differences in professional vocabularies and distinctions in methodological traditions of the disciplines involved in the field.