Reply #6: I guess you didn't read the letter

[OKIsItJustMe]

… These conclusions are based on multiple independent lines of evidence, and contrary assertions are inconsistent with an objective assessment of the vast body of peer-reviewed science. …

As for that lone voice, crying in the wilderness, yeah, he was describing the “Greenhouse Effect” over a century ago…

http://www.aip.org/history/climate/timeline.htm
http://en.wikipedia.org/wiki/John_Tyndall#Main_scientific_work

http://en.wikipedia.org/wiki/Svante_Arrhenius#Greenhouse_effect

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Greenhouse effect

Arrhenius developed a theory to explain the ice ages, and first speculated that changes in the levels of carbon dioxide in the atmosphere could substantially alter the surface temperature through the greenhouse effect. He was influenced by the work of others, including Joseph Fourier. Arrhenius used the infrared observations of the moon by Frank Washington Very and Samuel Pierpont Langley at the Allegheny Observatory in Pittsburgh to calculate the absorption of CO₂ and water vapour. Using 'Stefan's law' (better known as the Stefan Boltzmann law), he formulated his greenhouse law. In its original form, Arrhenius' greenhouse law reads as follows:

if the quantity of carbonic acid increases in geometric progression, the augmentation of the temperature will increase nearly in arithmetic progression.

This simplified expression is still used today:

ΔF = α ln(C/C₀)

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