The evidence for major climate change in the 17th century is both copious and unambiguous. Consider the year 1675. In July, the Paris socialite Madame de Sévigné complained to her daughter, who lived close to the Mediterranean: “It is horribly cold: We have the fires lit, just like you, which is very remarkable.” She added: “We think the behavior of the sun and of the seasons has changed.”
Judith Curry points us to a study of the 17th century climate in in The Inevitable Climate Catastrophe. She has extensive quotes from Geoffrey Parker’s new book “Global Crisis: War, Climate Change and Catastrophe in the Seventeenth Century.” It is well worth a read, for this lesson if nothing else:
Nevertheless, it took human stupidity to turn crisis into catastrophe.
The historical record is also a great cautionary tale that cooling is much, much worse than warming. And, since a static climate is as unrealistic as a static universe…