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Correspondence

Nature 413, 249 (20 September 2001) | doi:10.1038/35095194

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Probabilities will help us plan for climate change

A. Barrie Pittock1, Roger N. Jones1 & Chris D. Mitchell1

  1. Climate Impact Group, CSIRO Atmospheric Research, PMB 1, Aspendale 3195, Australia

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Without estimates, engineers and planners will have to delay decisions or take a gamble.

In his Commentary "What is 'dangerous' climate change?", Stephen Schneider1 argued that — in the absence of unambiguous expert advice — decision-makers will produce their own probability estimates about future climate change within the large range of projections provided by the Intergovernmental Panel on Climate Change (IPCC) in its Third Assessment Report, and that this is worse than using informed estimates provided by relevant experts.