Thanks for mentioning that book. I found it fascinating.
I was also fascinated in the way the author expected it to convince his readers of the importance of cutting greenhouse gas emissions.
He seemed to think that by explaining how past climate changes had impacted or destroyed past civilizations, we’d immediately jump to the conclusion that we need to do all we can to prevent the next climate change.
Somehow, he seems to think that after having explored a number of past incidents of climate change - in eras when there could have been no anthropogenic factor - we’d assume that we could prevent future incidents of climate change, simply by adopting a “green” lifestyle.
That all of those prior civilizations that had been destroyed by climate change had been living “green” lifestyles doesn’t seem to have occurred to him.
Global warming mongers are like The Mob - they demand criminal extortion. For scientists, it is in the form of pushing politcaly-oriented lies. This has, unfortunately, been happening for years.