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Part of the book series: Boston Studies in the Philosophy and History of Science ((BSPS,volume 323))

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Abstract

This chapter provides an overview of the book, with its essential relevance and approach (Sect. 1.1). The novelty and timeliness of this study are also highlighted (Sect. 1.2). Scientific assessments are valuable as tools to inform the public on complex policy issues such as climate change where so much is at stake for so many people. However, guidance is still lacking at the science-policy interface where there are perils lurking. These include the treatment of disputed normative implications in much of the social-science evaluation of policy options. Currently, taking account of this and other challenges, a central open question for many large-scale scientific assessments is whether and how to strengthen and extend social-science policy evaluation to appropriately inform public policy. This book develops a novel philosophical framework for the appropriate role of social-science expertise, particularly economics, in climate policy. The focus is on the integrated economic assessments of the Intergovernmental Panel on Climate Change. The work mainly adds to the existing body of literature by refining John Dewey’s pragmatist philosophy of scientific expertise in public policy, and systematically applying this philosophy to integrated economic assessments.

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Notes

  1. 1.

    Examples include Schellnhuber (2008), Ramanathan and Feng (2008), Smith et al. (2009), Bernauer and Schaffer (2010).

  2. 2.

    In line with much of the science-policy literature, I use the attribute ‘normative’ in a rather broad and inclusive sense: providing guidance for our choices (e.g., in public policy or in scientific knowledge production) in terms of what we should do or want to do – in contrast to a descriptive approach to what is actually the case. In this sense, ‘normative assumption’ is used synonymously with ‘value judgement’, a widespread but often misleading notion; normative assumptions are necessarily (yet sometimes only indirectly) related to ‘values’, i.e. to those aspects that we find particularly important and that we appreciate as guidance (in various fields of human life). Besides directly occurring as values, however, normative assumptions can be based on, or be identical with, for instance, virtues, principles, criteria, societal norms and (individual or group) interests (Biewald et al. 2015). More specifically, normative-ethical assumptions as the most discussed value judgements claim to provide well-reflected action guidance in terms of the good or the right that can be generalised (in contrast to, e.g., particular sectional interests in politics); as a discipline, philosophical ethics is identical with moral philosophy. ‘Epistemic’ or ‘cognitive value judgements’ (see Chap. 5) provide guidance for the particular field of knowledge production. Moreover, expertise is ‘policy-prescriptive’ if it, roughly spoken, provides or implies normative guidance (i.e., a preference) on disputable policy choices (see also Sect. 2.1.3). Chapter 5 provides a more detailed explanation and discussion of normative concepts; it also discusses the epistemological entanglement of normative and descriptive aspects.

  3. 3.

    In this work, I will usually use the plural form, i.e. “sciences” instead of “science,” to emphasise the existing variety and diversity of scientific questions, paradigms and methods. For the sake of simplicity, I mostly use the terms “sciences,” “scientific,” etc. as pars pro toto abbreviations for the entirety of the natural sciences, the social sciences, the humanities, philosophy and technology, such as, for instance, the term “scientific assessment” (which can include, e.g., contributions from the humanities). Moreover, in this work, the singular term “science” is usually used synonymously with “scientific knowledge,” for instance when I employ the terms “science-policy interface,” “sound science” or “value-laden science.” This terminology may sometimes cause problems, but so does the English language with its unwieldy distinction of the most respected (natural) science from other (social) sciences and the humanities, including philosophy.

  4. 4.

    See Kowarsch (2014) and Mitchell et al. (2006) for a more detailed explanation of scientific assessments.

  5. 5.

    For an overview of interesting philosophical questions regarding social sciences and climate change, see also Parker (2014).

  6. 6.

    This book does not investigate whether the WG III ARs sufficiently assessed all the available relevant literature and in an unbiased manner, nor whether there are errors in the economic details of the ARs. Instead, it focuses on some key philosophical aspects of the economics of climate change and how they were dealt with by the WG III.

  7. 7.

    According to Maasen and Weingart (2005), there were two waves of interdisciplinary publications on scientific policy advice. After the first wave in the 1960s, which focused on technocracy and the critique of it, there has been a second wave in recent years with a focus on democratic participation in scientific policy advice. Examples of seminal philosophical works on the role of science in policy include Habermas (1968), Brown (2009), Douglas (2009) and Kitcher (2001, 2011). Although there is a lot of literature on science-policy interactions, there is not much reflecting on scientific assessment-making in particular. Exceptions include, inter alia, Boehmer-Christiansen (1994a, b), Pinter (2002), Cash et al. (2003), Rayner (2003), Watson (2005), Mitchell et al. (2006), Farrell and Jäger (2006), NRC (2007), PBL (2008), UNEP and UNESCO (2009), Beck (2009), Rothman et al. (2009).

  8. 8.

    The high impact of such models and especially the need for a new model are explained, for example, by Beck (2009, p. 19; 2011), Pielke (2007), Brown (2009), Hulme (2009, pp. 102–10), Kitcher (2011, pp. 25f), Grunwald (2008, p. 285) and Jasanoff (e.g., 1990), but also by some bureaucrats and stakeholders.

  9. 9.

    There are a few works on the philosophy of the social sciences that also address some of the major aspects of social-science expertise in policy. See, e.g., Cartwright and Montuschi (2014) as well as Risjord (2014).

  10. 10.

    Among the exceptions is Brown (2012) who brings together Dewey’s philosophy of enquiry and current debates in philosophy of science. See also Chap. 6 for more discussion of the available literature.

  11. 11.

    The existing literature on the science-policy interface lacks a compelling justification and explanation of why and how alternative policy pathways can be explored. Most of the science-policy literature in the last two decades is about the sociology and history of scientific expertise in policy. These are undoubtedly valuable studies, but cannot replace the critical reflection on the philosophical issues.

  12. 12.

    See the literature discussed in Chaps. 7, 8 and 9.

  13. 13.

    “In response to some sustained criticism and a heightened level of public scrutiny of the Fourth Assessment Report, the United Nations and IPCC asked the InterAcademy Council (IAC) to assemble a committee to review the processes and procedures of the IPCC and make recommendations for change that would enhance the authoritative nature of the IPCC reports” (IAC 2010, p. v).

  14. 14.

    See particularly the different discussions in Nature 463 (Opinion, February 2010), pp. 730–32, and a couple of other articles in Nature 463 and 464. See also publications such as Skodvin (2000), Beck (2009, 2011), Hulme and Mahony (2010), Tol (2011), Pielke (2010), Watson (2010), Grundmann and Stehr (2011, Chap. 4), and the discussions, for instance, on the blogs http://rogerpielkejr.blogspot.com/, http://wattsupwiththat.com and http://judithcurry.com/2011/10/06/ipcc-discussion-thread/. The governments’ discussions about IPCC reform can be found here: http://www.ipcc.ch/apps/future/ (all accessed 7 Jan 2015).

  15. 15.

    E.g., Victor (2015) mainly from the perspective of political sciences, and Carraro et al. (2015) mainly from an economics perspective.

  16. 16.

    See IPCC (2014, Preface).

  17. 17.

    Upcoming large-scale scientific assessment projects include, for instance, the envisaged assessments by the Intergovernmental Platform on Biodiversity and Ecosystem Services that explicitly follows the role model of the IPCC; the Sixth Global Environment Outlook by the United Nations Environment Programme; and the next UN Global Sustainable Development Report.

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Kowarsch, M. (2016). Introduction. In: A Pragmatist Orientation for the Social Sciences in Climate Policy. Boston Studies in the Philosophy and History of Science, vol 323. Springer, Cham. https://doi.org/10.1007/978-3-319-43281-6_1

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