a b s t r a c tAchieving a 'step-change' in energy efficiency behaviours will require enhanced knowledge of behavioural drivers, and translation of this knowledge into successful intervention programmes. The 'Energy Cultures' conceptual framework aims to assist in understanding the factors that influence energy consumption behaviour, and to help identify opportunities for behaviour change. Building on a history of attempts to offer multi-disciplinary integrating models of energy behaviour, we take a culture-based approach to behaviour, while drawing also from lifestyles and systems thinking. The framework provides a structure for addressing the problem of multiple interpretations of 'behaviour' by suggesting that it is influenced by the interactions between cognitive norms, energy practices and material culture.The Energy Cultures framework is discussed in the context of a New Zealand case study, which demonstrates its development and application. It has already provided a basis for cross-disciplinary collaboration, and for multi-disciplinary research design, and has provided insights into behavioural change in a case study community. As the conceptual basis of a 3-year research project, the framework has further potential to identify clusters of 'energy cultures' -similar patterns of norms, practices and/or material culture -to enable the crafting of targeted actions to achieve behaviour change.

The energy cultures framework was developed in 2009 to support interdisciplinary investigation into energy behaviour in New Zealand. In this paper, we discuss the framework in light of 5 years of empirical application and conceptual development. The concept of culture is helpful in seeking to better understand energy behaviour because it conveys how behaviours are embedded within the physical and social contexts of everyday life, and how they are both repetitive and heterogeneous. The framework suggests that the energy culture of a given subject (e.g. an individual, a household, a business, a sector) can be studied by examining the interrelationships between their norms, practices and material culture, and how these, in turn, are shaped by external influences. We discuss the key theoretical influences of the framework, and how the core concepts of the framework have evolved as we have applied them in different research situations. We then illustrate how we have applied the framework to a range of topics and sectors, and how it has been used to support interdisciplinary research, in identifying clusters of energy cultures, in examining energy cultures at different scales and in different sectors, and to inform policy development.

Ecological compensation is an example of a trade-off whereby loss of natural values is remedied or offset by a corresponding compensatory action on the same site or elsewhere, determined through the process of Environmental Impact Assessment (EIA). Ecological compensation actions are often criticized for having low levels of compliance: meaning that they are achieved only partially or not at all, while development activity proceeds with much greater certainty. Our research investigated compliance with 245 conditions relating to ecological compensation across 81 case studies across New Zealand under the Resource Management Act 1991. Our research shows that present tools and practice in New Zealand are not adequately securing the necessary benefits from ecological compensation requirements, with 35.2% of requirements not being achieved. Significant variation in non-compliance with ecological compensation occurs between different activities, applicant types and condition types, while critical variables within the planning process influence levels of compliance. Our research demonstrates the importance of understanding the nature of non-compliance and of providing a consistent and robust decision-making framework for the consideration of ecological compensation in practice.

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There is a rocky chasm between the promise of interdisciplinary research and successful interdisciplinary research practice. As a group of researchers from New Zealand, based in five different disciplines (consumer psychology, economics, sociology, law, engineering), we share an interest in the behaviour of energy consumers, but understand behaviour through very different lenses. Initially we were mutually baffled by our discipline-specific languages and diverse theoretical stances. Over a period of time, however, we developed ways of working together to realise the benefits of collaboration.In this paper we reflect on the differences between disciplinarity and interdisciplinarity, and discuss the practices we have adopted that support interdisciplinarity. These include the importance of trust, focusing on a problem, being aware of limits, sharing a common intellectual framework, testing ideas across the disciplines, and practicing interdisciplinarity at every level of the research project. We suggest that not all people are comfortable with interdisciplinary work, and draw parallels with Kohlberg's 'stages of moral development', in that interdisciplinarians need to be 'post-conventional' in the sense that they do not feel bound by the conventions of their own discipline and recognise the legitimacy and value of other perspectives and methods of inquiry.