Climate projections and their impact on policy and practice

Maria Carmen Lemos and Richard B. Rood

Wiley Interdisciplinary Reviews: Climate Change, 2010, vol. 1, issue 5, 670-682

Abstract: This article examines the relationship between projections of climate change and the responses to those projections. First, it discusses uncertainty and its role in shaping not only the production of climate projections but also the use of these projections by decision makers. We find that uncertainty critically affects the way climate projections move from useful to usable, where usefulness is defined by scientists' perception of users' needs, and usability is defined by users' perception of what knowledge can be readily applied to their decision. From the point of view of the natural scientist, we pose that there is an uncertainty fallacy, that is, a belief that the systematic reduction of uncertainty in climate projections is required in order for the projections to be used by decision makers. Second, we explore the implications of climate projections for policy and decision making, using examples from the seasonal climate forecast applications literature as an analog. We examine constraints and opportunities for their application in policy and practice and find that over‐reliance on science and technical solutions might crowd out the moral imperative to do what is needed to improve livelihoods and to guarantee ecosystems' long‐term sustainability. We conclude that, in the context of high uncertainty, decision makers should not look for ‘perfect’ forecasts, but seek to implement knowledge systems that integrate climate projections with other kinds of knowledge and that consider the multiple stressors that shape their decision environment. Copyright © 2010 John Wiley & Sons, Ltd. This article is categorized under: Social Status of Climate Change Knowledge > Climate Science and Decision Making Social Status of Climate Change Knowledge > Knowledge and Practice

Date: 2010
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Persistent link: https://EconPapers.repec.org/RePEc:wly:wirecc:v:1:y:2010:i:5:p:670-682

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