Hurry or Wait – The Pros and Cons of Going Fast or Slow on Climate Change

Eleanor Denny () and Weiss Jurgen
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Weiss Jurgen: The Brattle Group, 44 Brattle Street, Cambridge, MA 02138, USA

The Economists' Voice, 2015, vol. 12, issue 1, 19-24

Abstract: Climate change risk will likely force the de-carbonization of our electricity sector and thus involve massive investments in long-lived assets using many new and emerging technologies. Since technological progress (independent or dependent on deployment) will likely lower the future cost of those technologies, investing early and rapidly forecloses saving money by installing those technologies at a lower cost later. There are thus benefits to waiting until the costs of renewables fall further. However, there are also costs to waiting. First, given the longevity of greenhouse gases in the atmosphere, cumulative emissions matter and lowering greenhouse gas emissions earlier is beneficial. Second, there is significant uncertainty not only over the rate of change of the cost of low carbon technologies, but also over the cost of greenhouse gas emissions. The costs of waiting are complex in that the distributions themselves are unknown (and quite possibly have “fat” tails). There may also be complex timing issues such as points of no return in terms of global greenhouse gas concentrations, beyond which the costs of adapting to climate change effects become essentially infinite. Hurrying can therefore be considered an insurance policy against the unknown but perhaps increasing risk of catastrophic damage.

Keywords: climate change; electricity sector; environmental risks; fat tails; greenhouse gas emissions (search for similar items in EconPapers)
Date: 2015
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DOI: 10.1515/ev-2015-0007

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