Global Warming Inhibits Hurricane Activity as Indicated By Decreasing Tropical CAPE Values
17 hours ago Guest Blogger 21 Comments
[editor’s note, I do appreciate the irony in this post following the previous one Time to Pack a Bug-Out Bag, Hurricane Season from Hell Predicted but a single year is irrelevant to long term trends.]
by John Shewchuk
Tropical cyclone data from global sources show that tropical cyclone activity is slowly decreasing during [a period of] global warming. Unfortunately, there seems to be very little (if any) literature explaining why this is happening. This paper attempts to address this issue. For the remainder of this paper, named global tropical cyclones will simply be referred to as hurricanes.
Figure 1 shows hurricane activity from 1980 to 2023. The light grey linear trend line reflects the slow trend of decreasing hurricane activity.
Global annual hurricane activity 1980 to 2023
Figure 1. Global hurricanes (Categories 1 to 5) from 1980 to 2023, with a 5-year centered weighted smoothing filter, and a thin grey linear trend line. Data source:
https://tropical.atmos.colostate.edu/Realtime/index.php?arch&loc=globalhttps://wattsupwiththat.com/2024/04/08/global-warming-inhibits-hurricane-activity-as-indicated-by-decreasing-tropical-cape-values/
