ABSTRACT The approaches currently dominating sustainable urban planning are based on a paradigm which assumes that economic growth can be decoupled from economic degradation through smarter technological solutions and institutional reform within existing social structures. However, decoupling can only be partial. Environmental sustainability, therefore, requires that, sooner or later, growth in consumption and production must cease. Policies for combining environmental and social sustainability would be sharply at odds with key mechanisms inherent in the capitalist economy. Urban sustainability thus requires profound (...) changes. On the ontological plane, planning theory must move away from anti-realist constructivism and hermeneuticism, towards realism. On the empirical plane, it is necessary to move away from disciplinary tunnel vision towards a critical realist version of interdisciplinarity, within key research fields such as housing research and transportation research. On the political plane, urban sustainability must move from growth to degrowth, from inequality to equality, and from capitalism to eco-socialism. (shrink)

This article argues that there is a fundamental contradiction between a profit-oriented economic system and long-term environmental sustainability. The ‘solutions’ that are proposed by mainstream environmental economists as well as their ‘ecological economy’ colleagues do not solve the central problems, but serve to further highlight the difficulties of changing capitalism towards sustainability. In a profit-oriented economy, capital accumulation is a prime driving force, and non-growth for the economy at large tends to result in serious economic and social crises. On the (...) other hand, a de-coupling of economic growth from resource depletion and environmental degradation is possible only within certain sectors or product types and within relatively short time perspectives. The assumptions of mainstream economists about infinite economic growth (and infinite dematerialisation) represent a false ontology according to which the powers and mechanisms of the natural world are considered totally controllable by humans as if they were mere epiphenomena of the human world. On the other hand, the assumptions of certain ecological economists about the possibility of steady-state capitalism disregard the relation between capital and surplus value, which constitutes a strong mechanism driving the capitalist economy toward limitless growth. (shrink)

This article illustrates the process of applied critical realist research using a case study of political decision-making in transport. Critical realism is often used to analyse socio-political cha...

Interdisciplinarity has been a key term in the ecological debate ever since its advent in the early 1960s. The paper addresses these historical links and how the two terms ‘interdisciplinary’ and ‘ecology’ have influenced each other. The later concept ‘sustainable development’ is also truly interdisciplinary, including physical, biological, socio-economic and cultural, as well as normative, mechanisms, contexts and effects operating at scales ranging from the microscopic to the macroscopic. Policies to promote sustainable development need to be based on the type (...) of interdisciplinary thinking that has been advocated for several decades within the ecological debate. This applies not least to research into the sustainability aspects of urban development, the case discussed in this paper. Despite longstanding requests for interdisciplinarity, the development within the academic world has proceeded in the opposite direction. Many of the most influential metatheoretical perspectives virtually prohibit, or at best strongly discourage, the inclusion of insights about certain parts of reality. Here, critical realism could play a very important role as an underlabourer of interdisciplinarity. (shrink)