Quote:
Originally Posted by aerohead
The beginning of commercial-scale,coal-fired steam power,is,by definition,the beginning of the industrial revolution.From the proxy data,we know the atmospheric CO2 level and average global temperature,from 11,000 years ago,leading up to 1850,when things began to 'show.' It's a perfect reference datum.Rational.Scientific.All data leads to it.
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You said from 11,000 years ago till 1850.
The report clearly says 1850 to 1900.
If it already started changing by 1850 why use 1850 to 1900 as base line for preindustrial climate?
If the climate didnt change from from 9,000bc to 1850 why not use 1,200ad to 1,800ad?
Or any date from 1850 as far back as the data will allow?
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