The study of sustainable practices in organizations has received relatively little attention in Environmental Psychology. Only recently this has started to be an area of interest, due to the growing awareness of the contribution of large-scale organizations to climate change and to the fact that environmental and social sustainability in organizations have come on the agenda of executives and leaders both in the private and public sectors. It has been shown that the potential contribution of large organizations to global warming over the next 100 years will be highly significant: 72 % CO2, 18 % Methane, 9 % Nitrous Oxide (Emission Database for Global Atmospheric Research, 2000). Many organisations try to take responsibility for addressing environmental impacts, although some have argued that this is often little more than ‘greenwash’. The Stern Review (2007) demonstrated that the business case for integrating sustainability into their business strategies might be the most persuasive strategy (Govindarajulu & Daily, 2004; Ambec & Lanoie, 2008). They show commitment to environmental policies that facilitate a shift towards more sustainable business practices. The movement has gained strengths as many organisations compete to be seen as leaders in sustainability (Zibarras & Ballinger, 2011). Therefore, many organizations have introduced or changed policies, products and processes to address pollution, minimize resource use, and to improve community and stakeholder relations (Crane, 2000). Nevertheless, these changes may only reflect superficial progress in organizations (Linnenluecke & Griffiths, 2010). Significant cultural change is needed in order for organizations to adopt sustainable practices both in their production processes and everyday operations, and reach significant reductions in their GHG emissions. Achieving radical transformation requires identifying sustainable pathways that lead to the desired objectives of reducing emissions and contributing to climate change mitigation in Europe. Organizations tend to be slow in implementing radical change and such change may require significantly different management practices such as involving participatory approaches to ensure that all those within a company are not only involved in defining an alternative future but feel empowered and motivated to take the necessary measures to make transformations towards low-carbon organizations possible. This symposium reports on an EU FP7 project taking place in Italy, The Netherlands, Romania, Spain, Sweden and the UK which is seeking to understand the drivers of and barriers to sustainable ways of production and consumption through an exploration of management and employee practices in large scale organizations. The aim of this symposium is to present several innovative methodologies that have proven useful in studying the factors influencing sustainable practices in organizations and the radical transformation and pathways to reaching them. We will concentrate especially on life-history interviews, back-casting scenarios, agent-based modelling and the more classical focus groups and in-depth interviews. The symposium aims to provide a forum for a discussion of the strengths and weaknesses of these methodologies in studying sustainable practices in organizations, through the analysis of empirical data emerging from the field work in different large-scale organizations across Europe. Implications for future research will also be discussed. Program Presentation 1: David Uzzell, Markieta Domecka & Nora Räthzel Life histories: capturing processes of change in the oil industry Presentation 2: Adina Dumitru, Ricardo García-Mira & Pedro Vega Creating visions of the future: the use of back-casting scenarios in defining change in universities. Presentation 3: Giuseppe Carrus, Eugenio De Gregorio, Fridanna Maricchiolo, Stefano De Dominicis, Marino Bonaiuto & Mirilia Bonnes Individual and organizational drivers and barriers to low-carbon practices at work: a preliminary qualitative analyses in an Italian energy company. Presentation 4: Daniela Moza, Corina Ilin & Alin Gavreliuc The pertinence of using focus groups and in-depth interviews in the study of sustainability-related issues in private organizations providing public utility services