Dak
mentat
Except there hasn't been an "increase in frequency and intensity". Pointing to Harvey and Irma is an example of recency bias.
https://weather.com/storms/hurricane/news/major-hurricane-us-landfall-drought-study
The U.S. is in new record territory, as the nation passes the nine and a half year mark without the landfall of a major hurricane. But what researchers believe is behind the so-called hurricane drought might surprise you.
We made it 10 and a half. Now, obviously this is about the ones making landfall rather than total activity.
One of the reasons researchers believe that there hasn't been a real change in hurricane seasons is that Atlantic hurricane seasons have been average, as measured by accumulated cyclone energy (ACE) since 2006. ACE is a measure of tropical cyclone activity, taking into account the number, strength and duration of all the tropical cyclones in a season. According to the researchers, "The 2006-2014 annual mean ACE is 97, compared to a 1951-2000 mean of 93."
So a minute uptick in total activity, much of which obviously didn't make US landfall.
Edit: Diff topic
https://westhunt.wordpress.com/2017/09/04/guns-germs-and-steel-revisited/
Conclusion
We could use more serious work on macrohistory and the rise of civilization: it’s an interesting and important subject. In particular I’d like to see a really smart and detailed comparison of the two totally independent births of civilization in the Old and New Worlds. But this book isn’t serious. The thesis is a joke, and most of the supporting arguments are forced ( i.e. wrong). Perhaps the most important thing we can learn from Guns, Germs, and Steel is that most people are suckers, eager to sign on to ridiculous theories as long as they have the right political implications.