(Reposting. I don't think this made it awhile ago.)
I've been looking at graphs of the famous Vostok ice core data that
supposedly supports the idea that the cause of global warming is
anthropogenic. Typically, there are two curves, temperature variation and
ppm of CO2. See, for example,
<http://www.daviesand.com/Choices/Precautionary_Planning/New_Data/>.
Does this graph on its own have anything to do with ice ages? Does it say
anything more than about every 100K years that the atmosphere gets warmer
when CO2 is at its peak? Can one infer from the (Milankovitch) theory about
ices ages, which seem to occur about every 100K years, that ice ages begin
around the time of the peaks in CO2? Can we infer that the Russian's theory
about ice ages occurring every 100K years is born out by the data (or maybe
his claim is more complex)? Does the graph represent a smoking gun for
global warming as caused by humans? In short, what's the role of this graph
in the controvery of the root cause of global warming?
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
Wayne T. Watson (Watson Adventures, Prop., Nevada City, CA)
(121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
Obz Site: 39° 15' 7" N, 121° 2' 32" W, 2700 feet
--
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--cited in "Field Notes From a Catastrophe", 2006
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