Quote:
Originally Posted by oil pan 4
I have what the ipcc puts in their reports.
It is a fact that that use 1850 to 1900 as their base line for "pre industrial climate".
That is a fact and that is the data the ipcc uses.
My counter argument is why use 1850 to 1900?
Why not run the clock back as far as the data will allow?
I don't think you can have a rational discussion about climate change with out getting emotional.
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The atmospheric carbon dioxide concentration has been constant,from 11,000 years ago,at the beginning of the 'Holocene',to around 1880,when anthropogenic carbon dioxide emissions grew to significant levels.It's a perfect reference datum.