ylexot
Super Genius
So, the environmentalists have started a new web site. I decided to ask them a question...
I wonder if anyone will answer...Please help a skeptic
Hello, I found this web site because of some news articles about it and thought you may be able to explain something for me. There is a study that has been used extensively to back the claims for global warming:
http://www.realclimate.org/index.php?p=221
It appears that your web site uses the same data. The probelm that I have with using that study to back claims of global warming is that it shows a naturally occurring trend where there is a spike in CO2 levels every ~125,000 years...and we are actually past-due for that spike. It does not refute the claim of global warming, but it does place serious doubts in my mind as to the cause since there is no way the previous spikes can be attributed to human activities. When discussing this with another global warming proponent, she pointed out that the scale of the plots prevent one from seeing what is happening at the present time. She pointed me to the CO2 readings from Mauna Loa that show current levels at ~365 and rising:
http://en.wikipedia.org/wiki/Image:CO2-Mauna-Loa.png
Since 365 is high according to the ice core sample data, one might draw the conclusion that we are in the midst of a spike like the previous spikes in the core data. However, I also found information regarding relative CO2 levels globally:
http://www.mlo.noaa.gov/HISTORY/PUB...20anniv/co2.htm
"The most notable was Kurt Buch of Finland, who concluded after many years of study that the CO2 concentration varied systematically with air mass. His claims (Keeling and Bacastow, 1977) that high arctic air had concentrations in the range of 150 to 230 ppm, north and middle Atlantic air, 310 to 345 ppm, and tropical air, 320 to 370 ppm, strongly influenced preparations for the IGY CO2 program, especially the Scandinavian program, which he initially supervised. When from inadequate chemical and sampling techniques the Scandinavian pre-lGY program produced CO2 concentrations in the same range as previous data, these new data were readily justified as resulting from different properties of the air masses passing over the sampling sites (Fonselius et al., 1956)."
According to that, a Mauna Loa reading of ~365 would correlate to an ice core sample of ~200. According to the ice core data, 200 is actually a very low level of CO2 gas.
Unfortunately, nobody has been able to refute this. Maybe you can.
Thank you,
XXXXXXXXXXX
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