Value of information for climate observing systems

Roger Cooke, Bruce A. Wielicki, David F. Young and Martin G. Mlynczak
Additional contact information
Bruce A. Wielicki: NASA Langley Research Center
David F. Young: NASA Langley Research Center
Martin G. Mlynczak: NASA Langley Research Center

Environment Systems and Decisions, 2014, vol. 34, issue 1, 98-109

Abstract: Abstract The Interagency Working Group Memo on the social cost of carbon is used to compute the value of information (VOI) of climate observing systems. A generic decision context is posited in which society switches from a business as usual (BAU) emissions path to a reduced emissions path upon achieving sufficient confidence that a trigger variable exceeds a stipulated critical value. Using assessments of natural variability and uncertainty of measuring instruments, it is possible to compute the time at which the required confidence would be reached under the current and under a new observing system, if indeed the critical value is reached. Economic damages (worldwide) from carbon emissions are computed with an integrated assessment model. The more accurate observing system acquires the required confidence earlier and switches sooner to the reduced emissions path, thereby avoiding more damages which would otherwise be incurred by BAU emissions. The difference in expected net present value of averted damages under the two observing systems is the VOI of the new observing system relative to the existing system. As illustration, the VOI for the proposed space-borne CLARREO system relative to current space-borne systems is computed. Depending on details of the decision context, the VOI ranges from 2 to 30 trillion US dollars.

Keywords: Value of information; Climate observing system; Social cost of carbon; DICE; CLARREO (search for similar items in EconPapers)
Date: 2014
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DOI: 10.1007/s10669-013-9451-8

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