Jandila comments on Undiscriminating Skepticism - Less Wrong

97 Post author: Eliezer_Yudkowsky 14 March 2010 11:23PM

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Comment author: [deleted] 26 September 2011 06:01:56AM *  3 points [-]

The leading skeptics (e.g. Roy Spencer) claim that negative feedback loops (due to clouds that reflect heat > back into space) will reduce the warming effect of CO2 to be within the fluctuations Earth naturally experiences.

I don't know as I'd find that comforting, considering that the Cretaceous climate was within fluctuations the Earth naturally experiences, and transitioning to that in such a short time would still be a pretty darn significant systemic shock to economy and ecology alike...

EDIT: To be clear, I'm not saying we're headed for a new Cretaceous, just that "fluctuations the Earth naturally experiences" could still allow for some pretty steep gradients between the last century and any plausible, randomly-selected point within the known range.