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Reducing doubt about uncertainty: Guidance for IPCC’s third assessment

机译:减少对不确定性的怀疑:IPCC的第三次评估指南

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摘要

It is usually necessary to apply incomplete and uncertain information to inform policy and decision making, creating the need to characterize the state of knowledge and identify when more certain information may be available. After all, some information is better than none and conversely, even perfect information is of no use if it is available only after a decision has been made. In scientific assessments for global change, the challenges are particularly acute because of scientific complexity, long time horizons, and large political and economic stakes, among other factors. Moss and Schneider prepared uncertainty guidelines for the Third Assessment Report (TAR) of the Intergovernmental Panel on Climate Change (IPCC) that recommended a process to make expert judgments of levels of confidence and uncertainty more systematic and transparent. The guidance provided calibrated uncertainty terms to improve communication of findings to users and urged preparation of a traceable account of the authors’ assessment of the evidence for each major finding. This article reviews the recommendations and their effectiveness and highlights ensuing critiques and the evolution of uncertainty guidance for subsequent assessment reports. It discusses emerging challenges in providing science for decision making in the era of increasing model resolution and complexity and burgeoning interest in information to inform adaptation and mitigation at regional and finer scales.
机译:通常有必要应用不完整且不确定的信息来为政策和决策提供信息,从而需要表征知识状态并确定何时可以获得更多特定信息。毕竟,有些信息总比没有好,反之,如果只有在做出决定后才可用,即使完美的信息也没有用。在对全球变化的科学评估中,由于科学的复杂性,长期的发展以及巨大的政治和经济利益等因素,挑战尤其严峻。莫斯和施耐德(Moss and Schneider)为政府间气候变化专门委员会(IPCC)的第三次评估报告(TAR)编写了不确定性指南,该指南建议了一种程序,以使对信心和不确定性水平的专家判断更加系统和透明。该指南提供了经过校准的不确定性术语,以改善与用户的发现交流,并敦促为作者对每个主要发现的证据评估进行可追溯的描述。本文回顾了这些建议及其有效性,并重点介绍了随后的批评和对后续评估报告不确定性指南的演变。它讨论了在模型分辨率和复杂性不断提高的时代,为决策提供科学服务方面出现的新挑战,以及人们对信息的浓厚兴趣,以为区域和更小规模的适应和缓解提供信息。

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  • 来源
    《Climatic Change》 |2011年第4期|p.641-658|共18页
  • 作者

    Richard H. Moss;

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