Let us just finish putting this “CO2 is not a well mixed gas” lie in the garbage bin where it belongs:
Quote:You can go
here to see dozens of CO2 sampling station records from sea level to mountain top, from pole to equator, that show unequivically that CO2 spreads very evenly throughout the global atmosphere, all theory or prediction aside. We can even see that CO2 rise in the southern hemisphere lags behind CO2 rise in the northern hemisphere by a few years as most anthropogenic CO2 is produced in the north where the majority of fossil fuel combustion takes place and it takes some time to spread around. The annual rise and fall is the natural result of plant growth and die-off as seasons cycle through the northern hemisphere, again where most plant growth takes place.
. . . .So CO2 mixes, why is this? Pure CO2 is indeed heavier than air and there have even been suffocation deaths caused by volcanic emissions of CO2 many times in human history. The one word answer is wind. The atmosphere is very turbulent (windy) and this turbulence easily dilutes many kinds of gases in the atmoshpere and overpowers any small differences in bouyancy.
Let us have a look at some records:
1. Ice core drilled from Vostok in the Russina part of Antarctics, part of a 3 nation effort:
Quote:and analyzing the CO2 concentrations by gas chromatography (Barnola et al. 1983). The analytical system, except for the stainless steel container in which the ice was crushed, was calibrated for each ice sample measurement with a standard mixture of CO2 in nitrogen and oxygen. For further details on the experimental procedures and the dating of the successive ice layers at Vostok, see Barnola et al. (1987, 1991), Lorius et al. (1985), and Petit et al. (1999).
http://cdiac.ornl.gov/trends/co2/vostok.htmlBut CO2 is not a well mixed gas sputters lees so there is none in Antarctica!
2. Another atmospheric CO2 logging station at the south pole:
Quote:An Applied Physics Corporation (APC) nondispersive infrared gas analyzer was used in the field to obtain atmospheric CO2 concentrations, based on continuous data for 6-hour steady periods. Weekly averages were calculated from those daily averages meeting the requirement for at least 6 hours of continuous sampling. Data are available from most weeks during the 3-year period of record.
http://cdiac.ornl.gov/trends/co2/sio-keel-flask/sio-keel-flaskspo_c.htmlWell, Antarctica at the “bottom of the world” should have no CO2 unless CO2 is actually a well mixed gas. Maybe lees should read up about when a mix of gases might stratify. As a comedian his act is lousy, very old material of dubious value.
The result of this study:
Quote:The annual range of about 1.5 ppmv, and an increase of roughly 1 ppmv/year are evident over the period of record. The upward trend is better displayed by
SIO's PDF monthly averaged data. 3. Mt Grim, Tasmania:
Quote:Trends
These measurements indicate a rise in annual average atmospheric CO2 concentrations, from 354.07 parts per million by volume (ppmv) in 1992 to 378.50 ppmv in 2006, or an increase of almost 1.75 ppmv per year, on average.
http://cdiac.ornl.gov/trends/co2/csiro/csiro-cgrim.htmlThere are dozens of stations and their results lees can look through if lees wants to read science. In the meantime rational people conclude that CO2 disperses through the atmosphere and being a greenhouse gas is acting to warm the world.
I don’t know where it says anywhere that AGW relies on CO2 being a well mixed gas but now that we know it IS a well mixed gas we can move on from that furohy.
What Lees was trying to do, and probably thought himself a clever fellow, was turn a fact, that greenhouse gases do, in fact, act like a greenhouse to the Earth, as clearly, irrefutably shown by spectrometer readings on earth and on satellites, into seeming to be a theory.
1. CO2 IS a well mixed gas.
2. CO2, H2O, CH4 et al do act like a greenhouse and the more CO2 etc we emit the smaller the frequency window that heat wave radiation (infrared) can escape to space through
3. In other words, the AGW theory is pretty conclusively shown to be a good explanation for the heating we are seeing. AGW is true, if you want me to put it that way.
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