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Layman struggles with Science
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05-08-2010, 10:20 PM
Post: #89
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RE: Layman struggles with Science
From intuitive reasoning I've been fixated on the question "Why isn't the dry adiabatic lapse rate effected by the changing amount of greenhouse gases in the atmosphere?"
Anthony Watts has made a post titled VENUS ENVY where this subject is discussed. In the comments there is a link to a university lecture titled The adiabatic atmosphere The concluding paragraph reads: Quote:In conclusion, we have demonstrated that the temperature of the lower atmosphere should fall off approximately linearly with increasing height above ground level, whilst the pressure should fall off far more rapidly than this, and the density should fall off at some intermediate rate. We have also shown that the lapse rate of the temperature should be about 10 centigrade per kilometer in dry air, but somewhat less than this in wet air. In fact, all off these predictions are, more or less, correct. It is amazing that such accurate predictions can be obtained from the two simple laws, pV = constant for an isothermal gas, and pV^r = constant for an adiabatic gas. Greenhouse gases have no effect on the temperature of the atmosphere. CO2 comes from coal, coal comes from fossilised trees, fossilised trees come from living trees, living trees growth comes from CO2 therefore coal is carbon neutral. ...from here |
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