This was a disappointing book. I suppose it would have been good in its own right, but it was not really about the subject promised.
It started off right. The author claimed he was going to explore changes in Europe the last time we experienced rapid climate change. But he quickly went sideways with a lot of talk about philosophy & religion only tangentially related to the change in climate. To simplify only a little, he essentially says this happened and that happened and that happened, and BTW it might be related to climate change.
I finished the book because I was listening to the audio book while I was planting trees and had nothing else to do. I think doubt I would have finished otherwise. In other words, if you’ve got nothing better to do, read this book, but I cannot generally recommend it.