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Old 10-30-2019, 02:30 PM   #7756 (permalink)
aerohead
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why not use

Quote:
Originally Posted by oil pan 4 View Post
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?
1850 coincides with pre-industrial Earth.It's handy.You wouldn't expect to,and would not see any change before 1850,so why waste paper.
We don't include carburetors in studies involving electronic fuel injection,why include pre-coal-fired steam? This is when anthropogenic carbon dioxide really took off.We turned a corner.
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