In a now deleted tweet, Eichenwald wrote, “I’m not a scientist. I used a climate change equation &, using sea surface temps, predicted Irma intensity growth & timing. 100% correct.” Well, one meteorologist, Ryan Maue, called BS on Eichenwald’s mathematics, as did other data crunchers from other outlets, including The Washington Post
"Hurricane Irma is really bad. It may be the worst storm to hit the U.S. since 1935… But it is NOT the most powerful Atlantic hurricane ever recorded....' Irma 'among the 24 most intense Atlantic hurricanes since 1924, Irma is currently tied for second in wind speed.' And Irma is tied for 12th place according to atmospheric pressure.'
"The Most Powerful Atlantic Ocean Storm In Recorded History” meme fits the narrative: Global warming is causing hurricanes to become more severe… Another lie."
Hurricanes are not increasing in severity
The National Hurricane Center’s hurricane climatology page has a handy list of Atlantic Basin tropical storms, hurricanes and major hurricanes from 1851-2014. There is no statistically meaningful trend in hurricane frequency or severity.
While there might be a somewhat statistically significant increase in the number of tropical storms (R² = 0.2274), this could simply be due improvements in the detection and identification of storms at sea… There is no statistically meaningful trend in the numbers of hurricanes or major hurricanes.