ABSTRACT
The need to incorporate the implications of uncertainty into climate policy analysis has been discussed extensively.1 One motivation for this discussion is the uncertain nature of the climate-economy interaction. For example, scientists hold varied opinions on the degree of climate sensitivity and the concentration threshold for dangerous anthropogenic interference. A question that has been rarely asked in this context is the extent to which uncertainty in the climate and economy will persist even if these scientific questions are ultimately answered, and what the policy response to this circumstance should be.
