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Hemispheric Ocean Temperature Sensitivity

Guest Post By Willis Eschenbach Often I start off by looking at one thing, and I wind up getting side-tractored merrily down some indistinct overgrown jungle path. I was thinking about the difference in the strength of the sunshine between the apogee aphelion, which is when the Earth is furthest from the sun in July, and…

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The Climate Alarm Death Knell Sounds Again

By PAUL C. “CHIP” KNAPPENBERGER and PATRICK J. MICHAELS Currently, details are few, but apparently the results of a major scientific study on the effects of anthropogenic aerosols on clouds are going to have large implications for climate change projections—substantially lowering future temperature rise expectations. In a blog post from the Department of Meteorology of…

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Appraising Marvel et al.: Implications of forcing efficacies for climate sensitivity estimates

Guest essay by Nicholas Lewis Summary – Different agents may have effects on global temperature (GMST) different to those which would be expected simply by reference to the radiative forcing they exert. This difference is encapsulated in the term “forcing efficacy”. In their recent paper, Marvel et al. estimate efficacies for various forcings from climate simulations…