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Can we integrate climatic modelling and assessment?

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Abstract

The climatic change “debate” seems to be expanding faster than the available information base. National and international response strategies (mitigation and adaptation) are being discussed in board rooms, governments and the media. Phrases like “the uncertainty in the scenarios” appear to carry meaning but the information seems to be, at best, incomplete and, at worst, totally debased by multiple definitions and usages. “Scenarios” are predictions of possible futures. The “(un)certainty” that characterizes them encompasses prejudices, perspectives, incompleteness of information as well as the differences in completeness, accuracy and sensitivity of different forecasting tools. (Un)certainty is the source of experimentation and learning but excessive (un)certainty is noise and so the search for a signal requires its reduction. This reduction process can both promote planning and co-ordination but also quash unconventional, but ultimately valuable, ideas. Balancing this tension across the modern, multifaceted climatic “divisions” of technology, training, information access, understanding, terminology, economic development, societal flexibility and social and political perceptions is difficult. The current dysfunctioning of the international climatic information “industry” demands improved communication among these diverse communities. This paper discusses some of the difficulties as perceived by a physical scientist turned “gatekeeper” and proposes a twofold strategy for improving the situation: a climatic change information exchange and an explicit recognition of the need for cyclic social co-operation among the participating groups.

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    A. Henderson-Sellers (Vice-Chancellory)

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Henderson-Sellers, A. Can we integrate climatic modelling and assessment?. Environ Model Assess 1, 59–70 (1996). https://doi.org/10.1007/BF01874847

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