If he has done the analysis right, this means there is no warming trend over the last 60+ years in the ocean waters that fed Sandy. This means that the unusually warm seas that fed Sandy’s growth were simply a random event, an outlier which appears from this chart to be unrelated to any long-term temperature trend.
Update: I challenge you to find any article arguing that Sandy was caused by anthropogenic global warming that actually includes a long term trend chart (other than global temperatures) in the article. T
he only one I have seen is a hurricane strike chart that is cut off in the 1950’s (despite data that goes back over 100 years) because this is the only cherry-picked cut off point that delivers an upward trend. If you find one, email me the link, I would like to see it.