There is an undeniable and unavoidable problem for warming fanatics.
It’s called cooling and worse.
There were, no doubt, the Minoan and Roman and Medieval warmers–goo times were had by all, in fact there were measurable improvements in the stature of those lucky enough to live in the Medieval Warm period.
However, where there is warm, there can also be cool or cold or terrible famines from lack of a good growing season.
Here is something to stick in the eye of the typical fanatic who is convinced that warming is bad or worse–some cooling famine.
and for those who can’t read or comprehend, there were cooling and famine conditions created during ancient times that are now shown to cause great disruptions of civilization and great loss of life and the blessings of a favorable climate.
Cooling bad, warming good. Pretty simple. We will leave the question of an ideal temperature for the earth to another inquiry, since the warmers are stuck on a negative.