Environmental psychology focuses on peopleenvironment relations. These relations are often considered in adaptative terms: how can one avoid degradations, limit the overexploitation of natural resources, or cope with some urban annoyances (noise, pollution, etc.)? From a different perspective, Weiss and Girandola (2009, 2010a, b) suggested developing a positive psychology of sustainable development, dealing with social and dispositional factors that enable satisfaction, quality of life and, even more, individual well-being. Thus, the environment should no longer be considered a constraint requiring efforts to adapt to it but more a potential source of positive emotions, as shown in works on restorative environments or place attachment (e.g., Lewicka 2011; Staats 2012). Because of the perceptions, attitudes and representations it arouses, the environment is a major source of influence on individuals' well-being and quality of life. But under what conditions? According to Uzzell and Moser (2006) " : : : a sustainable quality of life is only achieved when people interact with the envi