The present research concerns the determinants of an array of environmental attitudes and behaviours, with particular focus on dimensions such as place identity and environmental stress. The relationship between pro-environmental attitudes/behaviours and identity issues have been documented by various studies (Bonaiuto et al.,1996; Carrus, Bonaiuto, & Bonnes, 2005; Stedman, 2002; Uzzell, Pol, & Badenas, 2002). In predicting environmental behaviours, social cohesion must be considered together with the sociophysical context (Uzzell, Pol & Badenas, 2002) and the basic assumptions of social identity can have implication also for explaining perceptions and behaviours relating to the protection of the environment (Bonnes et al., 2006). In fact, there is empirical evidence that group belongingness which is based on a specific place-rooted social identity greatly influences behavioural intention (Nenci, Carrus, Caddeo & Meloni, 2007). Recent empirical contributions have attempted to explain the formation of pro-environmental behaviours by considering the role of personal environmental stress (Homburg & Stolberg, 2006; Homburg, Stolberg, &Wagner, 2007). The over-consumption of natural resources and the pollution due to social, economic and global causes lead inevitably to an environmental deterioration which can be perceived as stressful, thus threatening human health and wellbeing. The prolonged and uncontrolled exposition to environmental stress may also cause the pathological condition referred to as learned helplessness (Seligman, 1975; Evans & Cohen, 1987), which may occur when the individual who attempted unsuccessfully to control the stimulus gives up since he/she perceives his attempt as unuseful. According to Evans and Stecker (2004), the chronic exposition to acute and uncontrollable environmental stressors, such as noise, overcrowding and traffic congestion, is a cause of learned helplessness in adults and children. Perceived control assumes therefore an important role. Research so far has only investigated bi-variate relationships between identity or environmental stress and the pro-environmental behaviours. The present study aims to investigates in a controlled setting the specific impact of each factor on different pro-environmental behaviours. An experimental study was thus carried out where local identity end environmental stress were manipulatedin a 2x2 factorial design including the following 4 experimental conditions: 1. stress induced/ identity induced; 2. stress induced/ identity not induced; 3. stress not induced/ identity induced; 4. stress not induced/identity not induced). N=80 participants were randomly assigned to each of the four experimental conditions (20 Ss each). Environmental stress condition was induced trough a 3-minute video simulating an experience of urban traffic, whereas local identity was manipulated trough a cognitive task making about local identity salient. Pro-environmental intentions and behaviours were measured through scales included in a self-report questionnaire that participants had to fill in after each experimental session. The results of the study indicate that participants in the stress condition are more motivated to carry out pro-environmental behaviours. This may be because an higher stress condition can encourage a focus on the problem and consequently the completion of a given proenvironmental behavior as a strategy for coping (Lazarus, 1991). As regards the salience of local identity, it seems to affect the intention to perform only few of the examined pro-environmental behaviors.