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Optimal learning on climate change: Why climate skeptics should reduce emissions

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  • van Wijnbergen, Sweder
  • Willems, Tim

Abstract

Climate skeptics typically argue that the possibility that global warming is exogenous, implies that we should not take additional action towards reducing emissions until we know what drives warming. This paper however shows that even climate skeptics have an incentive to reduce emissions: such a directional change generates information on the causes of global warming. Since the optimal policy depends upon these causes, they are valuable to know. Although increasing emissions would also generate information, that option is inferior due its irreversibility. We show that optimality can even imply that climate skeptics should actually argue for lower emissions than believers.

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  • van Wijnbergen, Sweder & Willems, Tim, 2015. "Optimal learning on climate change: Why climate skeptics should reduce emissions," Journal of Environmental Economics and Management, Elsevier, vol. 70(C), pages 17-33.
    • Handle: RePEc:eee:jeeman:v:70:y:2015:i:c:p:17-33
    DOI: 10.1016/j.jeem.2014.12.002
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    Cited by:

    1. Olijslagers, Stan & van der Ploeg, Frederick & van Wijnbergen, Sweder, 2023. "On current and future carbon prices in a risky world," Journal of Economic Dynamics and Control, Elsevier, vol. 146(C).
    2. Rezai, Armon & van der Ploeg, Frederick, 2017. "Climate policies under climate model uncertainty: Max-min and min-max regret," Energy Economics, Elsevier, vol. 68(S1), pages 4-16.
    3. Mark Kagan, 2012. "Climate Change Skepticism in the Face of Catastrophe," Tinbergen Institute Discussion Papers 12-112/VIII, Tinbergen Institute, revised 29 Sep 2014.
    4. Guglielmo Zappalà, 2022. "Drought exposure and accuracy: Motivated reasoning in climate change beliefs," Working Papers 2022.02, FAERE - French Association of Environmental and Resource Economists.
    5. Grant R. McDermott, 2021. "Skeptic priors and climate consensus," Climatic Change, Springer, vol. 166(1), pages 1-23, May.
    6. Onur Sapci, 2021. "The impact of environmental economics class on college students` future temperature expectations," Economics Bulletin, AccessEcon, vol. 41(3), pages 1887-1897.
    7. Tatiana Kiseleva, 2016. "Heterogeneous Beliefs and Climate Catastrophes," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 65(3), pages 599-622, November.
    8. In Chang Hwang & Richard S.J. Tol & Marjan W. Hofkes, 2013. "Active Learning about Climate Change," Working Paper Series 6513, Department of Economics, University of Sussex Business School.
    9. Ahlvik, Lassi & Hyytiäinen, Kari, 2015. "Value of adaptation in water protection — Economic impacts of uncertain climate change in the Baltic Sea," Ecological Economics, Elsevier, vol. 116(C), pages 231-240.
    10. In Chang Hwang & Richard S. J. Tol & Marjan W. Hofkes, 2019. "Active Learning and Optimal Climate Policy," Environmental & Resource Economics, Springer;European Association of Environmental and Resource Economists, vol. 73(4), pages 1237-1264, August.
    11. Ahlvik, Lassi & Iho, Antti, 2018. "Optimal geoengineering experiments," Journal of Environmental Economics and Management, Elsevier, vol. 92(C), pages 148-168.

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    More about this item

    Keywords

    Climate policy; Global warming; Climate skepticism; Active learning; Irreversibilities;
    All these keywords.

    JEL classification:

    • D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search; Learning; Information and Knowledge; Communication; Belief; Unawareness
    • Q54 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Climate; Natural Disasters and their Management; Global Warming
    • Q58 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Environmental Economics: Government Policy

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