Which were then modeled. The actual ice core data shows that warming occurs and then 400 to 800 years later CO2 levels rise. That is a fact that continually bites the AGW crowd in the butt.
It is amazingly stupid to say,
"In the past, forest fires were caused by lightning, and the present must be exactly like the past, so humans can't cause forest fires."
or
"In the past, species went extinct naturally, and the present must be exactly like the past, so humans can't make species go extinct."
or
"In the past, CO2 lagged temp, and the present must be exactly like the past, so CO2 must lag temps now."
The 3 statements are precisely the same concerning the degree of stupidity required to make them. A dim third grader could understand the logic failure behind them.
What's more, the recent science points out it's not even true that CO2 lags temps. Therefore, an honest person would not even be making the claim that CO2 lags temp.
Synchronous Change of Atmospheric CO2 and Antarctic Temperature During the Last Deglacial Warming
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Understanding the role of atmospheric CO2 during past climate changes requires clear knowledge of how it varies in time relative to temperature. Antarctic ice cores preserve highly resolved records of atmospheric CO2 and Antarctic temperature for the past 800,000 years. Here we propose a revised relative age scale for the concentration of atmospheric CO2 and Antarctic temperature for the last deglacial warming, using data from five Antarctic ice cores. We infer the phasing between CO2 concentration and Antarctic temperature at four times when their trends change abruptly.
We find no significant asynchrony between them, indicating that Antarctic temperature did not begin to rise hundreds of years before the concentration of atmospheric CO2, as has been suggested by earlier studies.
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The harsh reality that all of you can't stand is we have ample evidence, from actual real data, not computer modeled science fiction, that shows when the temps are higher life is better. ALL life.
North Africa used to be the breadbasket of Rome. How's it doing now under higher temps? You mean it's a blasted desert now? My, what an improvement.
Arabia used to be much more fertile. How's it doing now?
Dead civilizations litter the American southwest and Africa. Are they better off because of the warming?
Warming benefited northern Europe. Rational people understand northern Europe is a small slice of the globe.
I won't even get into your "ALL life!" statement. That took your stupidity to new heights, your deliberate absolute claim that every living thing on the planet would do better when temps are hotter. It essentially reveals you as a religious zealot, hoping for more holy warming.