The Spencer Challenge to Slayers/Principia

Dr. Roy Spencer has made a challenge to the Slayers/Principia folks who keep insisting the greenhouse effect doesn’t exist at all. For example, see the front page claim at right from the Principia web page where they claim the greenhouse effect is “bogus”. My view has always been that it exists. and has been effectively…

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Refutation of Stable Thermal Equilibrium Lapse Rates

Guest post by Robert G. Brown Duke University Physics Department The Problem In 2003 a paper was published in Energy & Environment by Hans Jelbring that asserted that a gravitationally bound, adiabatically isolated shell of ideal gas would exhibit a thermodynamically stable adiabatic lapse rate. No plausible explanation was offered for this state being thermodynamically…