Quote:
Originally Posted by timeparticle The CO2 levels are way above anything we had before, according to the data taken from ice fossil readings. |
Yes, well you all know what I think about Al Gore AND the "global warming" fraud.
For what it is worth (in regard to accuracy) this is from Wiki for you tp:
Image:Phanerozoic Carbon Dioxide.png From Wikipedia, the free encyclopedia
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This figures shows estimates of the changes in
carbon dioxide concentrations during the
Phanerozoic. Three estimates are based on geochemical modeling:
GEOCARB III (Berner and Kothavala 2001),
COPSE (Bergmann et al. 2004) and Rothman (2001). These are compared to the carbon dioxide measurement database of Royer et al. (2004) and a 30 Myr filtered average of those data. Error envelopes are shown when they were available. The right hand scale shows the ratio of these measurements to the estimated average for the last several million years (the
Quaternary). Customary labels for the periods of
geologic time appear at the bottom.
Direct determination of past carbon dioxide levels relies primarily on the interpretation of carbon isotopic ratios in fossilized soils (
paleosols) or the shells of
phytoplankton and through interpretation of
stomatal density in fossil plants. Each of these is subject to substantial systematic uncertainty.
Estimates of carbon dioxide changes through geochemical modeling instead rely on quantifying the geological sources and sinks for carbon dioxide over long time scales particularly:
volcanic inputs,
erosion and
carbonate deposition. As such, these models are largely independent of direct measurements of carbon dioxide.
Both measurements and models show considerable uncertainty and variation; however, all point to carbon dioxide levels in the past that have been signifcantly higher than they are at present.
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"What a fragile balance between the indispensable and the sublime." Hans Blumenberg
"Perfection is not when there is more to add, but when there is no more to take away." Antoine De Saint-Eupery
Disclaimer: *The above statements are my opinion only and shouldn't be taken as factual. Read at your own risk*