Problem is that the number/percent of intense storms -- and storms in general -- is going down across other basins. Globally, the number has remained largely the same for many years now (since we have reliable data into the 60s). Global warming doesn't act in two opposite manners; plus, with global warming, many have predicted more El Nino events. That would suppress activity in the Atlantic and enhance it in the W. Pacific; generally, activity in those two basins are not positively correlated. There are way too many questions and holes in the theory to claim global warming is the cause for much of anything related to the tropics...IMO.