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Title: Climate scientists set the bar of proof too high
Abstract Standards of proof for attributing real world events/damage to global warming should be the same as in clinical or environmental lawsuits, argue Lloyd et al. The central question that we raise is effective communication. How can climate scientists best and effectively communicate their findings to crucial non-expert audiences, including public policy makers and civil society? To address this question, we look at the mismatch between what courts require and what climate scientists are setting as a bar of proof. Our first point is that scientists typically demand too much of themselves in terms of evidence, in comparison with the level of evidence required in a legal, regulatory, or public policy context. Our second point is to recommend that the Intergovernmental Panel on Climate Change recommend more prominently the use of the category “more likely than not” as a level of proof in their reports, as this corresponds to the standard of proof most frequently required in civil court rooms. This has also implications for public policy and the public communication of climate evidence.  more » « less
Award ID(s):
1754740
PAR ID:
10292930
Author(s) / Creator(s):
; ; ;
Date Published:
Journal Name:
Climatic Change
Volume:
165
Issue:
3-4
ISSN:
0165-0009
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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