What is the economic value of information about climate thresholds?

Klaus Keller, Seung Rae Kim, Johanna Baehr, David F. Bradford, Michael Oppenheimer

Research output: Chapter in Book/Report/Conference proceedingChapter

13 Scopus citations


The field of integrated assessment of climate change is undergoing a paradigm shift towards the analysis of potentially abrupt and irreversible climate changes (Alley et al., 2003; Keller et al., 2007). Early integrated studies broke important new ground in exploring the relationship between the costs and benefits of reducing carbon dioxide (CO2) emissions (e.g., Nordhaus, 1991; Manne and Richels, 1991; or Tol, 1997). These studies project the climate response to anthropogenic CO2 emissions to be relatively smooth and typically conclude that the projected benefits of reducing CO2 emissions would justify only small reductions in CO2 emissions in a cost–benefit framework. The validity of the often- assumed smooth climate response is, however, questionable, given how the climate system has responded to forcing in the geological past. Before the Anthropocene, the geological time period where humans have started to influence the global biogeochemical cycles considerably (Crutzen, 2002), the predominant responses of the climate system were forced by small changes in solar insolation occurring on timescales of thousands of years (Berger and Loutre, 1991). Yet this slow and smooth forcing apparently triggered abrupt climate changes – a threshold response where the climate system moved between different basins of attraction (Berger, 1990; Clement et al., 2001). Anthropogenic forcing may trigger climate threshold responses in the future (Alley et al., 2003; Keller et al., 2007).

Original languageEnglish (US)
Title of host publicationHuman-Induced Climate Change
Subtitle of host publicationAn Interdisciplinary Assessment
PublisherCambridge University Press
Number of pages12
ISBN (Electronic)9780511619472
ISBN (Print)9780521866033
StatePublished - Jan 1 2007

All Science Journal Classification (ASJC) codes

  • General Earth and Planetary Sciences


Dive into the research topics of 'What is the economic value of information about climate thresholds?'. Together they form a unique fingerprint.

Cite this