David Demeritt

The Construction of Global Warming and the Politics of Science

Having outlined a theory of heterogeneous social construction, this article describes the scientific construction of climate change as a global-scale environmental problem caused by the universal physical properties of greenhouse gases. Critics have noted that this reductionist formulation serves a variety of political purposes, but instrumental and interest-based critiques of the use of scientific knowledge tend to ignore the ways in which a politics gets built into science at the upstream end. By retracing the history of climate modeling and of several scientific controversies, I unmask the tacit social and epistemic commitments implied by its specific practices. The specific scientific framing of global climate change has reinforced and been reinforced by the technocratic inclinations of global climate management. The social organization of climate change science and its articulation with the political process raise important questions about trust, uncertainty, and expertise. The article concludes with a discussion of the political brittleness of this dominant science-led and global-scale formulation of the climate change problem and the need for a more reflexive politics of climate change and of scientific knowledge based on active trust.

Climate Change and Sustainable Development: Towards Dialogue

Abstract The consequences of climate change and sustainable development remaining as separate discourses are explored, both in general and in the Canadian context. One of these consequences is the difference in emission and economic development scenarios generated by the two groups. A second is that strategies to reduce greenhouse gas emissions are designed and assessed in a narrow technical context, divorced from the economic and social forces that underlie them. We identify the need for climate change and sustainable development to be represented in a more explicit manner in each other’s research agendas, and for integrated assessment of climate change to incorporate alternative methodologies that complement global scale integrated assessment models. These methodologies should include greater involvement of stakeholders as partners with researchers in a shared learning experience.

What is the ‘social construction of nature’? A typology and sympathetic critique

This paper seeks to clarify what is meant by the ‘social construction of nature’, which has become a crude but common term used to describe very different understandings of nature, knowledge and the world. I distinguish two broad varieties of construction talk in the social sciences: construction-as-refutation and construction-as-philosophical-critique. The first uses the construction metaphor to refute false beliefs about the world and is consistent with orthodox philosophical stances, such as positivism and realism. By contrast, I identify four other, more radical sorts of construction-as-philosophical-critique that use the construction metaphor to question the culture/nature, subject/object and representation/reality dualisms that provide the conventional philosophical foundation for distinguishing true conceptions of nature from false ones. Another source of confusion has been the question of precisely what is meant by the term ‘nature’. Making distinctions among different senses of that term can provide some badly needed clarity in debates about the social construction of nature. It also highlights a broad difference between those for whom the social construction of nature refers to the construction of our concepts of nature and those for whom the construction of nature refers to the process of constructing nature in the physical and material sense. That distinction, in turn, suggests two major, if also somewhat related, points of theoretical contention: first, the epistemological significance of understanding concepts of nature as constructed; second, the philosophical and political implications of arguing that nature is a socially constructed and contingent phenomenon. These are difficult philosophical and political questions, and the variety of constructionisms suggests that it is possible to answer them in a number of different ways.

Science studies, climate change and the prospects for constructivist critique

Abstract Starting from the debates over the ‘reality’ of global warming and the politics of science studies, I seek to clarify what is at stake politically in constructivist understandings of science and nature. These two separate but related debates point to the centrality of modern science in political discussions of the environment and to the difficulties, simultaneously technical and political, in warranting political action in the face of inevitably partial and uncertain scientific knowledge. The case of climate change then provides an experimental test case with which to explore the various responses to these challenges offered by Ulrich Becks reflexive modernization, the normative theory of expertise advanced by Harry Collins and Robert Evans, and Bruno Latours utopian vision for decision-making by the ‘collective’ in which traditional epistemic and institutional distinctions between science and politics are entirely superseded.

Ensemble predictions and perceptions of risk, uncertainty, and error in flood forecasting

Abstract Under the auspices of the World Meteorological Organization, there are a number of international initiatives to promote the development and use of so-called ensemble prediction systems (EPS) for flood forecasting. The campaign to apply these meteorological techniques to flood forecasting raises important questions about how the probabilistic information these systems provide can be used for what in operational terms is typically a binary decision of whether or not to issue a flood warning. To explore these issues, we report on the results of a series of focus group discussions conducted with operational flood forecasters from across Europe on behalf of the European Flood Alert System. Working in small groups to simulate operational conditions, forecasters engaged in a series of carefully designed forecasting exercises using various different combinations of actual data from real events. Focus group data was supplemented by a follow-up questionnaire survey exploring how flood forecasters understand risk, uncertainty, and error. Results suggest that flood forecasters may not instinctively use ensemble predictions in the way that promoters of EPS perhaps think they should. The paper concludes by exploring the implications of these divergent ‘epistemic cultures’ for efforts to apply ensemble prediction techniques developed in the context of weather forecasting to the rather different one of flood forecasting.

The new social contract for science: Accountability, relevance, and value in US and UK science and research policy

This paper considers recent changes in US and UK science policy designed to make academic research more publicly accountable and relevant. To this end, relations between public sector funding bodies academic researchers, andthe wider public are being reorganized in terms of customer-contractor relations, though cultural and institutional differences mean these broad trends have produced different outcomes in the US and UK to which geographers will have to adapt. New forms of market based, customer accountability are restructuring the context of scientific research and reorienting long standing academic norms and values. Though these changes are designed to make academic research more responsive to the demands of various paying customers, the paper suggests the importance of reflexivity about the interests and identity involved.

Scientific Forest Conservation and the Statistical Picturing of Nature's Limits in the Progressive-Era United States

This paper explores debates over the statistical picturing of the nations finite forest resources in the Progressive-era United States. This picturing was made possible by a variety of new quantitative and graphical practices that made maps and statistics appear as objective evidence of the natural limits those objects appeared to exhibit. Drawing on the work of Timothy Mitchell, I argue that this appearance was generated through more generalized practices of enframing. Enframing involved the systematic ordering of objects to create the appearance of a world metaphysically divided in two and graspable in terms of the distinction between reality and the objective representations through which reality as such was made to appear. This binary ordering, or enframing, of appearance created the appearance of order itself as an apparently abstract framework within which the objects so enframed could be more closely regulated. Enframing the forest quantitatively transformed heterogeneous forests into an apparently calculable quantity available to new disciplinary forms of state power that Foucault argues are characteristic of modern governmentality. The timber-famine debate also highlights the question of trust and the dependence of expert authority on traditional gender and class differences, which were themselves reworked through the quantifying practices of scientific forest conservation.

Flood-Risk Management, Mapping, and Planning: The Institutional Politics of Decision Support in England:

Flood maps play an increasingly prominent role in government strategies for flood-risk management. Maps are instruments not just for defining and communicating flood risks, but also for regulating them and for rationalizing the inevitable limits and failures of those controls. Drawing on policy document analysis, official statistics, and 66 key-informant interviews, this paper explores the institutional conflicts over the use of the Environment Agency (EA) Flood Map to support decision making by English local planning authorities (LPAs), whose local political mandate, statutory obligations, and professionalized planning culture put them at odds with the narrower bureaucratic imperative of the Agency to restrict developments at risk of flooding. The paper shows how the Flood Map was designed to standardize and script the planning process and ensure that LPA decisions were aligned with EA views about avoiding development in zones at risk of flooding without actually banning such development outright. But technologies are also shaped by their users, and so the paper documents how planners accommodated and resisted this technology of indirect rule. Their concerns about sterilizing areas depicted as being at risk of flooding and about the difficulties of actually using the Flood Map for speedy and defensible development-control decisions were crucial in its eventual replacement by a new decision-support technology, Strategic Flood Risk Assessments, which then led to the descripting of the Flood Map to influence a new set of users: the public. The paper closes with some wider reflections on the significance of the case for risk-based governance.

Visualizing probabilistic flood forecast information: expert preferences and perceptions of best practice in uncertainty communication

The aim of this article is to improve the communication of the probabilistic flood forecasts generated by hydrological ensemble prediction systems (HEPS) by understanding perceptions of different methods of visualizing probabilistic forecast information. This study focuses on interexpert communication and accounts for differences in visualization requirements based on the information content necessary for individual users. The perceptions of the expert group addressed in this study are important because they are the designers and primary users of existing HEPS. Nevertheless, they have sometimes resisted the release of uncertainty information to the general public because of doubts about whether it can be successfully communicated in ways that would be readily understood to nonexperts. In this article, we explore the strengths and weaknesses of existing HEPS visualization methods and thereby formulate some wider recommendations about the best practice for HEPS visualization and communication. We suggest that specific training on probabilistic forecasting would foster use of probabilistic forecasts with a wider range of applications. The result of a case study exercise showed that there is no overarching agreement between experts on how to display probabilistic forecasts and what they consider the essential information that should accompany plots and diagrams. In this article, we propose a list of minimum properties that, if consistently displayed with probabilistic forecasts, would make the products more easily understandable. Copyright

Un-ethical review? Why it is wrong to apply the medical model of research governance to human geography

The Economic and Social Research Council, the body which funds much social science in the UK, recently imposed on UK social science a system of research ethics governance already well established in other areas of research and in much of the rest of the developed world. This system requires that research involving human subjects receive prior ethical approval from a committee made up of, typically, multidisciplinary researchers and lay people. Our aim in this paper is to prompt debate about the purpose and practice of such an anticipatory ethical review. We begin by describing the rich and varied ethical and political debates ongoing in human geography. We argue that these are, at best, ignored and, at worst, threatened by this system of ethical review by committee. We describe the emergence of these formal mechanisms of research governance and important differences between the ethical contexts, history, and demands of research in the medical and social sciences. The paper draws on empirical research investigating National Health Service (NHS) research ethics committees to propose three salutary lessons geographers would do well to consider from experience elsewhere with ethical review. We argue that in review by committee deliberations extend beyond the ethical to include the methodological, that the system is a self-perpetuating and increasingly rule-bound mechanism, and that despite a rhetoric of accountability it is a system as obscure to outsiders as professional ethics.