Pulse has left a new comment on the post "Are Climate-Change Deniers as bad as Creationists?...":
"Nineteenth century physics shows that the temperature of objects in our orbit are constrained to be about 1/21 the temperature the Sun decides to be."
From what I can understand by reading through Bob Armstrong's website, his stance for denying the effects of greenhouse gasses rests on the observation that the measured mean temperature of the earth very closely matches the calculated mean temperature of a perfect black body object in the earth's orbit. His calculations attempt to show that this is no mere coincidence. Rather, all gray planetary bodies (like the earth) in fact should behave identically to perfect black bodies because the two terms measuring grayness, absorptivity and emissivity, should exactly cancel each other out. He not only denies the warming effects of greenhouse gasses, he also denies the cooling effects of an object's albedo.
"According to this theory [of reflectivity], as snow with an albedo which can be nearly as high as MgO covered the continents during the ice ages, the Earth should have spiraled down to a permanent snowball. That it didn't is one of the first facts which made me question the AGW orthodoxy. It is notable that, so far as I know, there is no laboratory demonstration of this supposed phenomenon."
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Posted by Pulse to The Secular Outpost at 7:56 PM