Abstract

In the absence of global agreement on a metric for delineating dangerous from acceptable climate change, 28C has, almost by default, emerged as the principal focus of international and national policy.1 Moreover, within the scientific community, 28C has come to provide a benchmark temperature against which to consider atmospheric concentrations of greenhouse gases and emission reduction profiles. While it is legitimate to question whether temperature is an appropriate metric for representing climate change and, if it is, whether 28C is the appro- priate temperature (Tol 2007), this is not the purpose of this paper. Instead, the paper begins by considering the implications of the 28C threshold for global emission pathways, before proceeding to consider the implications of different emission pathways on stabilization concentrations and associated temperatures.

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Reframing the Climate Change Challenge in Light of Post - 2000 Emission Trends

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  • 23 September 2014 Creation Date
  • 25 September 2019 Last Updated